A new lower limb portable exoskeleton for gait assistance in neurological patients: a proof of concept study.

BACKGROUND: Few portable exoskeletons following the assist-as-needed concept have been developed for patients with neurological disorders. Thus, the main objectives of this proof-of-concept study were 1) to explore the safety and feasibility of an exoskeleton for gait rehabilitation in stroke and multiple sclerosis patients, 2) to test different algorithms for gait assistance and measure the resulting gait changes and 3) to evaluate the user's perception of the device. METHODS: A cross-sectional study was conducted. Five patients were recruited (4 patients with stroke and 1 with multiple sclerosis). A robotic, one-degree-of-freedom, portable lower limb exoskeleton known as the Marsi Active Knee (MAK) was designed. Three control modes (the Zero Force Control mode, Mode 1 and Mode 3) were implemented. Spatiotemporal gait parameters were measured by the 10-m walking test (10MWT), the Gait Assessment and Intervention Tool (G.A.I.T.) and Tinetti Performance Oriented Mobility Assessment (gait subscale) before and after the trials. A modified QUEST 2.0 questionnaire was administered to determine each participant's opinion about the exoskeleton. The data acquired by the MAK sensors were normalized to a gait cycle, and adverse effects were recorded. RESULTS: The MAK exoskeleton was used successfully without any adverse effects. Better outcomes were obtained in the 10MWT and G.A.I.T. when Mode 3 was applied compared with not wearing the device at all. In 2 participants, Mode 3 worsened the results. Additionally, Mode 3 seemed to improve the 10MWT and G.A.I.T. outcomes to a greater extent than Mode 1. The overall score for the user perception of the device was 2.8 ± 0.4 95% CI. CONCLUSIONS: The MAK exoskeleton seems to afford positive preliminary results regarding safety, feasibility, and user acceptance. The efficacy of the MAK should be studied in future studies, and more advanced improvements in safety must be implemented.

Theories and control models and motor learning: clinical applications in neuro-rehabilitation.

INTRODUCTION: In recent decades there has been a special interest in theories that could explain the regulation of motor control, and their applications. These theories are often based on models of brain function, philosophically reflecting different criteria on how movement is controlled by the brain, each being emphasised in different neural components of the movement. The concept of motor learning, regarded as the set of internal processes associated with practice and experience that produce relatively permanent changes in the ability to produce motor activities through a specific skill, is also relevant in the context of neuroscience. Thus, both motor control and learning are seen as key fields of study for health professionals in the field of neuro-rehabilitation. DEVELOPMENT: The major theories of motor control are described, which include, motor programming theory, systems theory, the theory of dynamic action, and the theory of parallel distributed processing, as well as the factors that influence motor learning and its applications in neuro-rehabilitation. CONCLUSIONS: At present there is no consensus on which theory or model defines the regulations to explain motor control. Theories of motor learning should be the basis for motor rehabilitation. The new research should apply the knowledge generated in the fields of control and motor learning in neuro-rehabilitation.

Use of virtual reality systems as proprioception method in cerebral palsy: clinical practice guideline.

INTRODUCTION: The limitations in performing functional activities in children and adolescents with cerebral palsy are important. The use of virtual reality systems is a new treatment approach that reinforces task-oriented motor learning. The purpose of this guide is to study the impact of the use of virtual reality systems in the improvement and acquisition of functional skills, and to evaluate the scientific evidence to determine the strength of recommendation of such interventions. DEVELOPMENT: All available full-text articles, regardless of their methodology, were included. The following data bases were consulted: PubMed (Medline), PEDro, EMBASE (OVID-Elsevier), Cochrane Library, Medline (OVID), CINAHL, ISI Web Knowledge. An assessment was made of methodological quality, the level of scientific evidence, and the strength of recommendations using the tools: Critical Review Form - Quantitative Studies and the Guidelines for Critical Review Form - Quantitative Studies and U.S. Preventive Services Task Force. Finally, we included 13 articles and 97 participants were recruited. We obtained significant improvements in outcome measures that assessed postural control and balance, upper limb function, the selective joint control, and gait. CONCLUSIONS: The guide has some limitations: the limited number of patients enrolled, clinical diversity and age range, as well as the methodological quality of existing trials. Virtual reality is a promising tool in the treatment of children with cerebral palsy. There is strong scientific evidence of an acceptable recommendation for the use of virtual reality systems in the treatment of cerebral palsy.

Motor and process skills of people with parkinson's disease compared to healthy older adults. A cross-sectional study. / Habilidades motoras y de procesamiento en personas con enfermedad de Parkinson en comparación con adultos mayores sanos. Un estudio transversal.

INTRODUCTION: Both Parkinson's disease (PD) and the process of ageing are associated with functional limitations. The aim of this study was to determine the differences in motor and process skills between individuals with PD and healthy older adults, as well as to observe how disease progression affects motor and process skills performance in PD patients. SUBJECTS AND METHODS: A cross-sectional study was conducted. The Assessment of Motor and Process Skills (AMPS) measure was employed in order to analyze the differences in the motor and process skills of daily tasks in people with PD and healthy older adults age- and sex-matched. Part III of the Unified Parkinson Disease Rating Scale (UPDRS), the Hoehn and Yahr (HY) scale and the Schwab & England scale was administered to determine the severity of the disease. RESULTS: Seventy participants (49 patients with PD and 21 healthy older adults) were recruited for this study. Our results showed that even at moderate stages of the disease, both motor and process skills were found deteriorated in PD patients more than older healthy older adults (p < 0.001). As PD progresses, motor and process skills present significantly deterioration. CONCLUSION: PD leads to a greater deterioration in motor and process skills compared to healthy older adults. As disease stages advance according to the HY scale, performance in motor and process skills deteriorates significantly between moderate and advanced PD stages. According to the AMPS scale, PD patients show no impairment of processing skills up to HY IV, but motor impairment at HY stages II, III and IV.

TITLE: Habilidades motoras y de procesamiento en personas con enfermedad de Parkinson en comparación con adultos mayores sanos. Un estudio transversal.Introducción. Tanto la enfermedad de Parkinson (EP) como el proceso de envejecimiento están asociados con limitaciones funcionales. El objetivo de este estudio fue determinar las diferencias en habilidades motoras y de procesamiento entre individuos con EP y adultos mayores sanos, así como observar cómo la progresión de la enfermedad afecta al desempeño de las habilidades motoras y de procesamiento en pacientes con EP. Sujetos y métodos. Se realizó un estudio transversal. Se empleó la medida de la Assessment of Motor and Process Skills (AMPS) para analizar las diferencias en las habilidades motoras y de procesamiento de tareas cotidianas entre personas con EP y adultos mayores sanos, emparejados en edad y sexo. Se administró la sección III de la Unified Parkinson Disease Rating Scale, la escala de Hoehn y Yahr (HY) y la escala de Schwab & England para determinar la gravedad de la enfermedad. Resultados. Se reclutó a 70 participantes (49 pacientes con EP y 21 adultos mayores sanos). Nuestros resultados mostraron que incluso en estadios moderados de la enfermedad, tanto las habilidades motoras como las de procesamiento se encontraron deterioradas en los pacientes con EP en comparación con los adultos mayores sanos (p < 0,001). A medida que avanza la enfermedad, las habilidades motoras y de procesamiento presentan un deterioro significativo en las personas con EP. Conclusiones. La EP conduce a un mayor deterioro de las habilidades motoras y de procesamiento en comparación con adultos mayores sanos. A medida que avanzan los estadios de la enfermedad según la escala HY, el rendimiento en las habilidades motoras y de procesamiento se deteriora significativamente entre los estadios moderados y avanzados de la EP. Según la escala AMPS, los pacientes con EP no muestran un deterioro en las habilidades de procesamiento hasta el estadio HY IV, pero muestran deterioro motor en los estadios HY II, III y IV.

Safety and usability of the MAK exoskeleton in patients with stroke.

BACKGROUND AND PURPOSE: Stroke is one of the leading causes of disability in adults worldwide, and one of the main objectives in the rehabilitation of these patients is to recover the gait. New technologies have emerged to cope with this issue, complementing conventional therapy with the use of devices such as exoskeletons. The Marsi Active Knee (MAK) exoskeleton (Marsi Bionics SL, Madrid, Spain) has already been tested, but an updated version was improved to allow the patients to perform functional exercises. The aim of this study was to assess the safety and usability of the MAK in the stroke population as well as its potential clinical effects. METHODS: A single-group open label intervention trial was conducted. The device was used twice a week for 5 weeks during 1 h per visit. During the visits, sit-to-stand transitions, walking, stair climbing, trunk rotations, and weight-transfer exercises were performed using the device. Adverse events were collected from participants and therapists to assess safety. The Quebec User Evaluation of the Satisfaction with assistive Technology (QUEST 2.0) was used by both therapists and participants to assess usability. To evaluate its clinical effects, active range of motion (ROM) and muscle strength were assessed in the lower limb. RESULTS: Six participants with stroke were recruited. The device was shown to be safe since no serious adverse events were reported neither by patients nor by therapists. Every proposed exercise was performed. Regarding clinical effects, overall muscle strength showed an increase after the treatment, although ROM measurements did not show any difference. DISCUSSION: Our results suggest that the MAK device is safe for stroke patients. Nevertheless, further changes to enhance usability are recommended, such as an improvement of the attachment system and an adaptation for the drop foot. Beneficial effects regarding increases in muscle strength were obtained. Further trials with a larger sample size, longer intervention periods, and a control group are needed to verify these results. Also, future research should focus on the usability of the MAK as an assistive technology.

Muscle strength and spatiotemporal gait parameters in people with Parkinson´s disease. A pilot study. / Fuerza muscular y parámetros espaciotemporales de la marcha en personas con enfermedad de Parkinson. Un estudio piloto.

INTRODUCTION: Muscle weakness in persons with Parkinson disease (PD) has been frequently recognized as a nonspecific symptom. In other neurological conditions, lower limb weakness, specifically quadriceps weakness, is the factor that causes greater gait disability. Little research has evaluated the relationship between lower limb muscle strength, using objective tools, in PD persons and gait performance. The aim of this study was to analyze the correlation between lower limb muscle strength, using an isokinetic dynamometer, and the spatiotemporal gait parameters in PD, compared with age- and sex- matched healthy controls. SUBJECTS AND METHODS: The study was conducted with 7 persons with PD -Hoehn and Yahr (HY) between II-III- and 7 healthy controls. Isokinetic knee and ankle tests at 60 and 120°/s and the 10-meter walking test at comfortable and fast walking speed, were performed on all recruited subjects. RESULTS: Significant differences in lower limb strength-related measures and gait parameters were observed between persons with PD and controls. Gait parameters showed excellent correlations (rho = 0.7) for both lower limb: ankle plantar flexion work/body wearing at 180°/s with number of steps (indirect) and stride (direct) at both speeds, and between the ankle plantar flexion peak torque/ body wearing at 180°/s with number of steps (indirect) and stride (direct) at maximum speed; and between knee extension work/body wearing at 60°/s) with stride (direct) at self-selected speed. CONCLUSIONS: Persons with PD (HY II-III stages) lower limb muscle strength correlates excellently with gait pattern, showing lower isokinetic strength than healthy subjects of the same age and sex. This protocol showed safety to be performed in a larger sample.

TITLE: Fuerza muscular y parámetros espaciotemporales de la marcha en personas con enfermedad de Parkinson. Un estudio piloto.Introducción. La debilidad muscular en personas con enfermedad de Parkinson (EP) ha sido frecuentemente reconocida como un síntoma inespecífico. En otras patologías neurológicas, la debilidad de las extremidades inferiores, específicamente la debilidad de los cuádriceps, es el factor que causa mayor incapacidad para caminar. Pocas investigaciones han evaluado la relación entre la fuerza muscular de los miembros inferiores, utilizando herramientas objetivas en personas con EP y el desempeño de la marcha. El objetivo de este estudio fue analizar la correlación entre la fuerza muscular de los miembros inferiores, utilizando un dinamómetro isocinético, y los parámetros espaciotemporales de la marcha en la EP, en comparación con controles sanos emparejados por edad y sexo. Sujetos y métodos. El estudio se llevó a cabo con siete personas con EP ­Hoehn y Yahr (HY) entre II y III­ y siete controles sanos. Se realizaron pruebas isocinéticas de rodilla y tobillo a 60 y 120°/s y la prueba de marcha de 10 metros, a velocidad de marcha cómoda y rápida, en todos los sujetos reclutados. Resultados. Se observaron diferencias significativas en las medidas relacionadas con la fuerza de las extremidades inferiores y en los parámetros de la marcha entre las personas con EP y los controles. Los parámetros de la marcha mostraron excelentes correlaciones (rho = 0,7) para ambas extremidades inferiores: trabajo de flexión plantar de tobillo/desgaste corporal a 180°/s con número de pasos (indirecto) y zancada (directa) a ambas velocidades, y entre pico de torsión de flexión plantar de tobillo/desgaste corporal a 180°/s con número de pasos (indirecto) y zancada (directa) a velocidad máxima; y entre trabajo de extensión de rodilla/desgaste corporal a 60°/s con zancada (directa) a velocidad autoseleccionada. Conclusiones. La fuerza muscular de las extremidades inferiores de las personas con EP (estadios de HY II-III) se correlaciona excelentemente con el patrón de la marcha, mostrando una fuerza isocinética inferior a la de sujetos sanos de la misma edad y sexo. Este protocolo mostró seguridad para ser realizado en una muestra mayor.

Occupational performance skills in Parkinson's disease: relationship with health-related quality of life and caregiver burden. / Habilidades de desempeño ocupacional en la enfermedad de Parkinson: relación con la calidad de vida relacionada con la salud y la carga del cuidador.

INTRODUCTION: The progression of Parkinson's disease (PD) results in a loss of ability to performance activities of daily living and health-related quality of life. The objectives of this study were to establish the relations between occupational performance skills and health-related quality of life, and the degree of caregiver burden in PD patients. PATIENTS AND METHODS: Forty-nine patients at different stages of PD according to the Hoehn and Yahr scale participated in the study. Patients were assessed using the Parkinson's Disease Questionnaire (PDQ-39), the EuroQoL (EQ-5D), the Assessment of Motor and Process Skills (AMPS), and the Zarit Caregiver Burden Interview (ZCBI). RESULTS: Strong correlations were found between the motor skills section of the AMPS scale and the PDQ-39 (r = -0.76; p = 0.001), and the EQ-5D questionnaires (r = 0.72; p = 0.001), while moderate correlations were found with the process skills. AMPS process skills were moderately correlated with mobility and activities of daily living. The ZCBI was only weakly correlated with the AMPS motor skills (r = -0.34; p = 0.02). CONCLUSION: Declining scores on the AMPS scale are closely related to the loss of health-related quality of life in PD patients, and, to a lesser extent, with the degree of caregiver burden.

TITLE: Habilidades de desempeño ocupacional en la enfermedad de Parkinson: relación con la calidad de vida relacionada con la salud y la carga del cuidador.Introducción. La progresión de la enfermedad de Parkinson (EP) da lugar a una pérdida de la capacidad para realizar actividades de la vida diaria y de la calidad de vida relacionada con la salud. Los objetivos de este estudio fueron establecer las relaciones entre las habilidades de desempeño ocupacional y la calidad de vida relacionada con la salud, y el grado de carga del cuidador en pacientes con EP. Pacientes y métodos. Participaron en el estudio 49 sujetos en diferentes estadios de EP según la escala de Hoehn y Yahr. Los pacientes fueron evaluados usando el cuestionario de la enfermedad de Parkinson (PDQ-39), el EuroQoL (EQ-5D), la evaluación de las habilidades motoras y de procesamiento (AMPS), y la entrevista de Zarit sobre la carga del cuidador (ZCBI). Resultados. Se encontraron fuertes correlaciones entre la sección de habilidades motoras de la AMPS y el PDQ-39 (r = ­0,76; p = 0,001), y los cuestionarios EQ-5D (r = 0,72; p = 0,001), mientras que se encontraron correlaciones moderadas con las habilidades de procesamiento. Las habilidades de procesamiento de la AMPS se correlacionaron moderadamente con la movilidad y las actividades de la vida diaria. La ZCBI sólo se correlacionó débilmente con las habilidades motoras de la AMPS (r = ­0,34; p = 0,02). Conclusión. Las puntuaciones decrecientes en la AMPS están estrechamente relacionadas con la pérdida de calidad de vida relacionada con la salud en pacientes con EP y, en menor medida, con el grado de carga del cuidador.

The impact of Parkinson's disease severity on performance of activities of daily living: an observational study. / El impacto de la gravedad de la enfermedad de Parkinson en el desempeño de las actividades de la vida diaria: un estudio observacional.

INTRODUCTION: Parkinson's disease (PD) affects the ability to perform activities of daily living (ADL), increasing with disease progression. The study of the association between PD severity and occupational performance skills may improve the understanding of the functional impairment associated with this pathology. OBJECTIVE: To study the relationship between PD severity and the loss of functional performance. PATIENTS AND METHODS: 49 non-demented PD patients were assessed with The Assessment of Motor and Process Skills (AMPS) scale, the Hoehn and Yahr scale (HY), the section III of the Unified Parkinson Disease Rating Scale (UPDRS), and the Schwab and England scale. RESULTS: PD severity was related to the AMPS scale (p < 0.001). There was a strong correlation between the AMPS motor skills and the HY scale (p < 0.001) and UPDRS III (p < 0.001), as well as between process skills and the Schwab and England E scale (p < 0.001). A moderate correlation was found between Schwab and England scale and AMPS motor skills, while a strong correlation was found with the process skills. Finally, a weak correlation was found between the AMPS scale and disease duration, yet only in the motor section. CONCLUSIONS: The severity of PD is closely related to the impairment of functional skills measured with the AMPS scale in non-demented PD patients. A strong correlation was found with the motor skills. A strong correlation was found between the AMPS process skills scale and Schwab and England ADL scale. A weak correlation was found between the AMPS motor scale and disease duration. The AMPS scale might be a useful tool to monitoring the PD progression through the observation of ADL performance.

TITLE: El impacto de la gravedad de la enfermedad de Parkinson en el desempeño de las actividades de la vida diaria: un estudio observacional.Introducción. La enfermedad de Parkinson (EP) afecta a la capacidad para realizar actividades de la vida diaria (AVD), lo que se incrementa con la progresión de la enfermedad. El estudio de la asociación entre la gravedad de la EP y las habilidades de desempeño ocupacional puede mejorar la comprensión del deterioro funcional asociado a esta patología. Objetivo. Estudiar la relación entre la gravedad de la EP y la pérdida de rendimiento funcional. Pacientes y métodos. Se evaluó a 49 pacientes con EP con la escala Assessment of Motor and Process Skills (AMPS), la escala Hoehn and Yahr (HY), la sección III de la Unified Parkinson Disease Rating Scale (UPDRS) y la escala Schwab and England. Resultados. La gravedad de la EP se observó correlacionada con la escala AMPS (p < 0,001). Hubo una fuerte correlación entre las destrezas motoras de la AMPS y las escalas HY (p < 0,001) y UPDRS III (p < 0,001), así como entre las destrezas de procesamiento y la escala Schwab and England (p < 0,001). Se encontró una correlación moderada entre la escala Schwab and England y las habilidades motoras de la AMPS, mientras que se encontró una correlación fuerte con las habilidades de procesamiento. Por último, se encontró una correlación débil entre la escala AMPS y los años de evolución de la EP, aunque sólo en el apartado motor. Conclusiones. La gravedad de la EP está estrechamente relacionada con el deterioro de las habilidades funcionales medidas con la escala AMPS en pacientes con EP no dementes. Se encontró una fuerte correlación con las habilidades motoras. Se encontró una fuerte correlación entre la escala AMPS de habilidades de procesamiento y la escala Schwab and England. Se encontró una correlación débil entre la escala motora AMPS y la duración de la enfermedad. La escala AMPS podría ser una herramienta útil para monitorizar la progresión de la EP a través de la observación del desempeño de las AVD.

[Effects of vibrotherapy on postural control, functionality and fatigue in multiple sclerosis patients. A randomised clinical trial]. / Efectos de la vibroterapia sobre el control postural, la funcionalidad y la fatiga en pacientes con esclerosis múltiple. Ensayo clínico aleatorizado.

INTRODUCTION: Postural and balance disorders, functionality impairment and fatigue, are the most incapacitating problems in multiple sclerosis (MS) patients. Whole Body Vibration (WBV), through the transmission of mechanical stimuli, appears to be a useful therapeutic tool in the treatment of neurological diseases. The objective of this study is to assess the effect of the WBV on postural control, balance, functionality and fatigue in patients with MS. MATERIAL AND METHODS: A total of 34 patients with mild-moderate MS were randomised into a control group and an intervention group. For the intervention group, the protocol consisted of 5 consecutive days, daily series of 5 periods of 1 minute of duration of WBV at a frequency of 6 Hz. Posturographic assessment using the Sensory Organization Test (SOT) and Motor Control Test (MCT), the Timed Get Up and Go Test, 10 metres Test, the Berg Balance Scale and Krupp's Fatigue Severity Scale were used before and after intervention. RESULTS: The analysis showed improvements in the intervention group for conditions SOT 1, SOT 3 and latency in MCT. In the comparison between groups, only the latency or reaction time in MCT improved significantly in favour of the intervention group (from 173.78±12.46 to 161.25±13.64 ms; P=.04). No side-effects were found. CONCLUSIONS: The results of this pilot study show that WBV can improve, in the short-term, the time of response to recover the uprightness after sudden disturbances, appearing as a possible therapeutic tool maintaining balance and posture.

Mobile applications in children with cerebral palsy. / Aplicaciones móviles en la parálisis cerebral infantil.

INTRODUCTION: Cerebral palsy (CP) is one of the most common developmental disorders. Technological development has enabled a transformation of the healthcare sector, which can offer more individualised, participatory, and preventive services. Within this context of new technology applied to the healthcare sector, mobile applications, or apps, constitute a very promising tool for the management of children with CP. OBJECTIVE: The purpose of this article is to perform a systematic review of the information published about various mobile applications either directly related to CP or with potential to be useful in the context of the disease, and to describe, analyse, and classify these applications. MATERIAL AND METHODS: A literature search was carried out to gather articles published in English or Spanish between 2011 and 2017 which presented, analysed, or validated applications either specifically designed or potentially useful for CP. Furthermore, a search for mobile applications was conducted in the main mobile application markets. CONCLUSIONS: A total of 63 applications were found in biomedical databases and mobile application markets, of which 40 were potentially useful for CP and 23 were specifically designed for the condition (11 for information, 3 for evaluation, and 9 for treatment). There are numerous mobile applications either specifically designed for or with potential to be useful in the field of CP. However, despite the existing scientific evidence, the low methodological quality of scientific articles makes it impossible to generalise the use of these tools.

[Validity of the Wisconsin Gait Scale to predict the risk of falls in stroke patients]. / Validez de la Wisconsin Gait Scale para predecir el riesgo de caídas en pacientes con ictus.

INTRODUCTION: Approximately, half of the stroke patients suffered a fall during the first year after the injury, affecting its functionality. Gait evaluation scales could evaluate to predict the risk of falls. OBJECTIVE: To study the ability of the Wisconsin Gait Scale (WGS) to predict the risk of falls in stroke subjects. PATIENTS AND METHODS: Retrospective observational study that included stroke patients between May 2010 and October 2016. Data from the WGS and the Berg Balance Scale (BBS) were collected after hospitalization (acute phase), at 3 months (subacute phase) and at 6 and 12 months (chronic phases). BBS was used as the outcome variable to determine the ability of the WGS to predict the risk of falls. The calculation of the predictive validity was carried out using the ROC (Receiver Operating Characteristics) curves and the analysis of the area under the curve (AUC, area under the curve). RESULTS: Data were collected from 61 patients who met the inclusion criteria (after admission: 61; 3 months: 61; 6 months: 58; 12 months: 42). In all measurements, the AUC was greater than 0.9, so the WGS distinguishes stroke patients with moderate risk of falling from those with low risk. CONCLUSIONS: The WGS scale is a valid instrument to predict the risk of falls in patients with a criterion in relation to the cut-off points established in the BBS.

TITLE: Validez de la Wisconsin Gait Scale para predecir el riesgo de caídas en pacientes con ictus.Introducción. Aproximadamente, la mitad de las personas que han sufrido un ictus sufre una caída durante el primer año tras la lesión, lo que afecta a su funcionalidad. Las escalas de evaluación de la marcha podrían utilizarse para predecir el riesgo de caídas. Objetivo. Estudiar la capacidad de la Wisconsin Gait Scale (WGS) para predecir el riesgo de caídas en pacientes con ictus. Pacientes y métodos. Estudio observacional retrospectivo que incluyó a pacientes con ictus entre mayo de 2010 y octubre de 2016. Se recopilaron datos de la WGS y de la Berg Balance Scale (BBS) tras la hospitalización (fase aguda), a los tres meses (fase subaguda) y a los seis y 12 meses (fases crónicas). Se empleó la BBS como variable de resultado para determinar la capacidad de la WGS para predecir el riesgo de caídas. El cálculo de la validez predictiva se llevó a cabo mediante las curvas receiver operating characteristics y el análisis del área bajo la curva (AUC). Resultados. Se recopilaron datos de 61 pacientes que cumplieron los criterios de inclusión (tras la admisión: 61; a los tres meses: 61; a los seis meses: 58; a los 12 meses: 42). En todas las mediciones, el AUC fue mayor de 0,9, por lo que la WGS distingue a los pacientes con ictus con riesgo moderado de sufrir caídas de los de riesgo bajo. Conclusiones. La WGS es un instrumento válido para predecir el riesgo de caídas en pacientes con un ictus en relación con los puntos de corte establecidos en la BBS.

[Observational gait scale for persons with lower extremity amputation. Design and content validity]. / Escala observacional de la marcha del sujeto con amputación de la extremidad inferior: diseño y validez de contenido.

INTRODUCTION: Gait pattern is altered in persons with lower extremity amputation. To assess gait pattern, it is important to use observational gait scales with a good content validity. OBJECTIVES: To design an observational gait scale and to analyze its content validity. MATERIAL AND METHODS: An expert committee was formed to obtain a version of the scale. The same committee was responsible for evaluating the scale. The content validity index (CVI) was calculated, both for each item and for the global scale. RESULTS: The main kinematic and spatiotemporal alterations were selected to design the items. The scale consists of 2sections and 25 items, with a maximum score of 35 points. An overall CVI score of 0.90 was obtained, and an index of validity for most items with values higher than 0.78. CONCLUSION: The Observational gait scale for persons with amputation of the lower extremity showed excellent content validity according to the CVI obtained. Future studies should evaluate its reliability and construct validity.

[Mobile applications in alzheimer's disease. A systematic review of the literature]. / Aplicaciones móviles en la enfermedad de Alzheimer. Una revisión sistemática de la literatura.

INTRODUCTION: New treatment options are emerging to treat Alzheimer's disease (AE) within the field of smartphone technologies. OBJECTIVE: To carry out a systematic review of the literature on the use of mobile applications in AE and to review the app markets in order to extract the main apps, with a view to classifying the describing them in the context of AE. MATERIAL AND METHODS: A systematic review was carried out from 2000 until 2018 on apps for AE. At the same time, a search for mobile applications was conducted in the main mobile application markets. RESULTS: A total of 294 mobile applications were found, which were classified as follows: 178 with potential utility for AE and 116 with a specific design for AE (73 information apps, 8 assessment apps, 31 treatment apps, 3 information and assessment and one assessment and treatment app). CONCLUSIONS: There are multiple apps with potential utility or a specific design for AE. However, the limited number of scientific articles and their poor quality make it impossible to generalise their use. Consequently, future research is needed by health agencies in the context of AE.

Effects of auditory cues on gait initiation and turning in patients with Parkinson's disease. / Efectos de los estímulos auditivos en la fase de iniciación de la marcha y de giro en pacientes con enfermedad de Parkinson.

OBJECTIVE: To review the available scientific evidence about the effectiveness of auditory cues during gait initiation and turning in patients with Parkinson's disease. METHODS: We conducted a literature search in the following databases: Brain, PubMed, Medline, CINAHL, Scopus, Science Direct, Web of Science, Cochrane Database of Systematic Reviews, Cochrane Library Plus, CENTRAL, Trip Database, PEDro, DARE, OTseeker, and Google Scholar. We included all studies published between 2007 and 2016 and evaluating the influence of auditory cues on independent gait initiation and turning in patients with Parkinson's disease. The methodological quality of the studies was assessed with the Jadad scale. RESULTS: We included 13 studies, all of which had a low methodological quality (Jadad scale score≤2). In these studies, high-intensity, high-frequency auditory cues had a positive impact on gait initiation and turning. More specifically, they 1) improved spatiotemporal and kinematic parameters; 2) decreased freezing, turning duration, and falls; and 3) increased gait initiation speed, muscle activation, and gait speed and cadence in patients with Parkinson's disease. CONCLUSIONS: We need studies of better methodological quality to establish the Parkinson's disease stage in which auditory cues are most beneficial, as well as to determine the most effective type and frequency of the auditory cue during gait initiation and turning in patients with Parkinson's disease.

Construct validity of the Wisconsin Gait Scale in acute, subacute and chronic stroke.

OBJECTIVE: To assess the construct validity of the Wisconsin Gait Scale (WGS) in subjects after stroke. METHODS: A retrospective observational study was conducted at inpatient rehabilitation hospital. Data from 61 stroke patients was compiled. The Functional Ambulatory Categories (FAC), the Berg Balance Scale (BBS), the Postural Assessment Scale for Stroke Patients (PASS), the Barthel Index (BI) and the Functional Independence Measure (FIM) were selected to analyze the WGS construct validity at four specific time points after stroke (acute, subacute and chronic stages). Spearman correlation coefficients investigated the relationship between WGS and clinical measures. RESULTS: The construct validity of the WGS in patients with stroke at acute stage was moderate with the FAC (r=-.773), the BBS (r=-.676), the PASS (r=-.646) and the FIM (r=-.592). At subacute stage, the construct validity of the WGS was excellent with the FAC (r=-878), the BBS (r=-.882), the PASS (r=-.847) and the BI (r=-.813). The correlation was moderate with the FIM (r=-.693). At six and twelve months, the construct validity of WGS with the FAC, the BBS, the PASS, the BI and the FIM was excellent (r ≥ .8). CONCLUSION: The WGS has moderate construct validity with walking, balance and functionality scales in patients with acute stroke. The correlation with the FAC, the BBS, the PASS and the BI at subacute and chronic stages was excellent.

[Efficacy of virtual reality on balance and gait in multiple sclerosis. Systematic review of randomized controlled trials]. / Eficacia de la realidad virtual sobre el equilibrio y la marcha en esclerosis multiple. Revision sistematica de ensayos controlados aleatorizados.

INTRODUCTION: Multiple sclerosis (MS) is a neurodegenerative disease that causes gait abnormalities and a deficit in balance control in the vast majority of people affected by it. Virtual reality has been proposed as a complementary approach to conventional physiotherapeutic treatment as a way of improving these variables. AIM: To assess the real efficacy of this approach compared to other neurorehabilitation therapies, or no intervention, in MS. PATIENTS AND METHODS: A systematic review of randomized controlled trials was conducted. Studies of the last five years that compare virtual reality with conventional treatment or no intervention, on balance and/or gait, in adults with MS, were included. PEDro scale was used to assess methodological quality and the Oxford scale to determine the level of evidence and grades of recommendations. RESULTS: Eight studies met the eligibility criteria. For balance, the efficacy of virtual reality is, at least, comparable as conventional training. For gait, virtual reality seems not to be superior in improving the speed, compared with the other types of interventions assessed. Methodological quality of studies was low-moderate. CONCLUSIONS: Virtual reality is as effective as conventional training for improving balance in people with MS. No data suggests that virtual reality is superior to other interventions in improving gait speed. For other gait parameters, virtual reality's efficacy remains unknown.

TITLE: Eficacia de la realidad virtual sobre el equilibrio y la marcha en esclerosis multiple. Revision sistematica de ensayos controlados aleatorizados.Introduccion. La esclerosis multiple (EM) es una enfermedad neurodegenerativa que produce alteraciones en el equilibrio y la marcha en la mayoria de los pacientes. La realidad virtual se ha propuesto como un abordaje complementario al tratamiento rehabilitador convencional como medio para mejorar dichas alteraciones. Objetivo. Evaluar la eficacia del abordaje mediante realidad virtual, en comparacion con otras intervenciones de neurorrehabilitacion o la no intervencion, en la EM. Pacientes y metodos. Se realiza una revision sistematica de ensayos controlados aleatorizados. Se incluyeron estudios de los ultimos cinco años que comparasen la intervencion de realidad virtual frente al tratamiento convencional o la no intervencion sobre el equilibrio y la marcha en personas adultas con EM. Se utilizo la escala PEDro para evaluar la calidad metodologica de los estudios incluidos y la escala de Oxford para evaluar el nivel de evidencia y el grado de recomendacion. Resultados. Ocho estudios cumplieron los criterios de elegibilidad. Para el equilibrio, la eficacia de la realidad virtual es, al menos, comparable a la del entrenamiento convencional. Para la marcha, la realidad virtual parece no ser superior en el parametro velocidad, en comparacion con el resto de intervenciones evaluadas. La calidad metodologica de los estudios fue moderada-baja. Conclusiones. La realidad virtual es igual de eficaz que el entrenamiento rehabilitador convencional para mejorar el equilibrio en personas con EM. No se han hallado datos que sugieran que la realidad virtual sea superior a otras intervenciones en la mejora de la velocidad de la marcha, y su eficacia sobre otros parametros de la marcha es aun incierta.

[Translation and transcultural adaptation of the Toe Walking Tool: screening tool of toe walking patients]. / Traduccion y adaptacion transcultural de la Toe Walking Tool: herramienta para el cribado de la marcha de puntillas.

INTRODUCTION: The Toe Walking Tool (TWT) is a clinical screening instrument which helps in the differentiation of children with normal development, idiopathic toe-walking or toe-walking due to a medical cause. AIM: To carry out the translation and cross-cultural adaptation of the TWT for the Spanish pediatric population and to evaluate its content validity. SUBJECTS AND METHODS: This paper was carried out following an inverted method of translation and back-translation. Once the pre-final Spanish version was obtained, its analysis was conducted through the Delphi method by a panel of experts. The content validity of the tool explores its clarity, viability, applicability and usefulness. RESULTS: An expert panel composed by 15 professionals determine the content validity of the Spanish version of the TWT. The questionnaire translated and adapted transculturally into Spanish presented an excellent global content validity index (0.94) and the expert committee considered that the scale was easily understandable, viable, simple to apply and useful in the pediatric setting. CONCLUSIONS: The Spanish version of the TWT presents an excellent content validity and is an understandable, viable, simple and useful assessment tool. It is necessary to carry out future studies to analyze its psychometric properties with a Spanish pediatric population.

TITLE: Traduccion y adaptacion transcultural de la Toe Walking Tool: herramienta para el cribado de la marcha de puntillas.Introduccion. La Toe Walking Tool (TWT) es una herramienta clinica de cribado que permite discriminar a los niños con desarrollo normal de los que presentan marcha de puntillas idiopatica o marcha de puntillas de origen medico. Objetivo. Realizar la traduccion y adaptacion transcultural de la TWT para la poblacion infantil española y evaluar su validez de contenido. Sujetos y metodos. El proceso se realizo segun el metodo invertido de traduccion-retrotraduccion. Una vez obtenida la version prefinal en castellano, se llevo a cabo su analisis mediante el metodo Delphi por parte de un panel de expertos para analizar su validez de contenido, asi como la comprension, viabilidad, aplicabilidad y utilidad de la herramienta. Resultados. Se constituyo un panel de expertos compuesto por 15 profesionales que determinaron la validez de contenido de la version española de la TWT. El cuestionario traducido y adaptado transculturalmente al castellano presento un indice de validez de contenido global excelente (0,94). A traves del metodo Delphi se determino que la escala era comprensible, viable, de aplicacion sencilla y util en el ambito pediatrico. Conclusiones. La version en castellano de la TWT presenta una excelente validez de contenido y se considera un instrumento comprensible, viable, sencillo y util con aplicacion en la poblacion pediatrica española. En futuros estudios resulta necesario analizar sus caracteristicas psicometricas en niños con marcha de puntillas.

Mobile phone applications in Parkinson's disease: A systematic review. / Aplicaciones móviles en la enfermedad de Parkinson: una revisión sistemática.

INTRODUCTION: Parkinson's disease (PD) is the second most common neurodegenerative disease. However, diagnosing, assessing, and treating these patients is a complex process requiring continuous monitoring. In this context, smartphones may be useful in the management of patients with PD. OBJECTIVE: The purpose of this study is to perform a systematic review of the literature addressing the use of mobile phone applications (apps) in PD. MATERIALS AND METHODS: We conducted a literature search of articles published in English or Spanish between 2011 and 2016 analysing or validating apps specifically designed for or useful in PD. In addition, we searched for apps potentially useful for PD patients in the leading app stores. CONCLUSIONS: The literature and app searches yielded a total of 125 apps, 56 of which were classified as potentially useful in PD and 69 as specifically designed for PD (23 information apps, 29 assessment apps, 13 treatment apps, and 4 assessment and treatment apps). Numerous mobile apps are potentially useful in or specifically designed for PD management. However, scientific evidence of their usefulness is scarce and of poor quality. Further studies are needed to validate these tools and regulate their use.

[Mobile applications related to multiple sclerosis: a systematic review]. / Aplicaciones moviles en la esclerosis multiple: revision sistematica.

INTRODUCTION: New treatment options are emerging within the information and communication technologies field through smartphones in order to treat multiple sclerosis (MS) patients. AIM: To carry out a systematic review about the information related to mobile applications specifically designed in the field of MS, in order to classify them and carry out a description of their main characteristics. SUBJECTS AND METHODS: A literature search of articles published in English and Spanish has been carried out from 2012 until 2017 that presents, analyzes and validates a system based on an application with utility or specific design for MS. In turn, a search for mobile applications has been conducted in mobile application markets. RESULTS: A total of 46 mobile applications were found in the field of MS, classified as 19 information apps, 3 assessment apps, 4 treatment apps, 6 communication apps and 14 were considered combined. Four apps had costs and 37 were only found in English. CONCLUSIONS: All papers included in this systematic review showed mobile applications designed specifically for MS, but the low methodological quality of the articles included and the fact that there are no coincidences between the apps found in the scientific literature and in the apps markets mean that their use could not be recommended in a generalized way.

TITLE: Aplicaciones moviles en la esclerosis multiple: revision sistematica.Introduccion. Nuevas alternativas terapeuticas estan emergiendo en el ambito de las tecnologias de la informacion y la comunicacion mediante el uso de smartphones o telefonos inteligentes en el abordaje de la esclerosis multiple (EM). Objetivo. Realizar una revision sistematica sobre aplicaciones moviles especificamente diseñadas en el ambito de la EM, con el fin de clasificarlas y llevar a cabo una descripcion de sus principales caracteristicas. Sujetos y metodos. Se llevo a cabo una busqueda bibliografica de articulos publicados en ingles y castellano, desde el año 2012 al 2017, que presentasen, analizasen o validasen un sistema basado en una aplicacion con diseño especifico para la EM. A su vez, se llevo a cabo una busqueda de aplicaciones moviles en los principales mercados de aplicaciones moviles. Resultados. Se encontraron un total de 46 aplicaciones moviles en el campo de la EM, y se clasificaron en 19 aplicaciones informativas, tres de valoracion, cuatro de tratamiento, seis de comunicacion y 14 combinadas. Cuatro fueron de pago y 37 se encontraron unicamente en ingles. Conclusiones. Todos los articulos cientificos incluidos en la presente revision mostraban aplicaciones moviles especificamente diseñadas en el ambito de la EM. Sin embargo, la baja calidad metodologica de los articulos incluidos y el hecho de que no existan coincidencias entre las aplicaciones encontradas en la literatura cientifica y en los mercados de aplicaciones hacen que no se pueda recomendar su uso de forma generalizada.

[Mobile applications related to stroke: a systematic review]. / Aplicaciones moviles en el ictus: revision sistematica.

INTRODUCTION: The incidence of stroke has increased in recent years, highlighting the role of prevention and identification of risk factors, as well as the analysis of their costs. At present, new technologies, specifically mobile applications, are considered as tools with potential benefits in patients with stroke care. AIM: To carry out a systematic review about the information related to potential or specifically designed mobile applications in the field of stroke, in order to classify them and carry out a description of the main characteristics of them. PATIENTS AND METHODS: A systematic review of articles published in English, French and Spanish was carried out from 2007 until 2017 that presents, analyzes and validates a system based on an application with utility or specific design for stroke. In turn, a search for mobile applications has been conducted in mobile application markets. RESULTS: A total of 136 applications for mobile devices related to stroke were found, with 9 of healthy habits, 32 informative, 38 for assessment, 35 for treatment and 22 were specifics. CONCLUSIONS: Evidences with low methodological quality were identified in relation to different areas of care of the patient with stroke, as well as a wide range of applications in the different application markets, which advocated the creation of mechanisms of regulation regarding the validity of content.

TITLE: Aplicaciones moviles en el ictus: revision sistematica.Introduccion. La incidencia del ictus ha aumentado en los ultimos años, por lo que se destaca el papel en la prevencion e identificacion de factores de riesgo, asi como del analisis de sus costes derivados. En la actualidad, las nuevas tecnologias, concretamente las aplicaciones moviles, podrian considerarse como herramientas con potenciales beneficios en la atencion sanitaria del paciente con ictus. Objetivo. Realizar una revision sistematica sobre la informacion publicada acerca de las aplicaciones moviles potenciales o especificamente diseñadas en el ambito del ictus, con el fin de clasificarlas y llevar a cabo una descripcion de sus principales caracteristicas. Pacientes y metodos. Se llevo a cabo una revision sistematica de articulos publicados en ingles, frances y castellano, desde el año 2007 al 2017, que presentasen, analizasen o validasen sistemas basados en aplicaciones con utilidad o diseño especifico para el ictus. A su vez, se llevo a cabo una busqueda de aplicaciones moviles en los principales mercados de estas. Resultados. Se encontraron un total de 136 aplicaciones para dispositivos moviles relacionadas con el ictus: nueve de habitos saludables, 32 informativas, 38 referentes a valoracion, 35 de tratamiento y 22 especificas. Conclusiones. Se identificaron evidencias con escasa calidad metodologica en relacion con diferentes areas de atencion del paciente con ictus, asi como una amplia oferta de aplicaciones en los diferentes mercados de aplicaciones, por lo que se aboga por la creacion de mecanismos de regulacion en cuanto a la validez de contenido.