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1.
Am J Physiol Renal Physiol ; 326(5): F694-F703, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38511221

RESUMO

Left atrial (LA) function plays a pivotal role in cardiac performance by modulating left ventricular (LV) function. Impairments in LV function are commonly reported during hemodialysis (HD), but available data describing changes in LA function are limited. There is growing evidence of the cardioprotective effect of intradialytic exercise (IDE) on LV function, but studies analyzing its effect on LA function are scarce. Our aim was to evaluate whether IDE can limit the severity of HD-induced impairment in LA myocardial function. In this prospective, open-label, two-center randomized crossover trial, 56 stable individuals receiving HD participated in 2 HD sessions in random order: standard HD and a session incorporating 30 min of aerobic exercise. LA and LV global longitudinal strains (GLSs) were obtained before and at peak stress of HD (i.e., 30 min before the HD ending). IDE totally eradicated the decline in LA reservoir strain observed during HD (estimated difference: 3.1%, 95% confidence interval: 0.4/5.8, P = 0.02), whereas it did not affect the other components of LA mechanics. A similar result favoring IDE intervention was also demonstrated on GLS changes over the HD procedure (P < 0.001). Between-session differences of changes in GLS and LA reservoir strain were correlated (r = -0.32, P = 0.03). The cardioprotective effect of IDE disappeared in patients with LA enlargement (i.e., LA volume index >34 mL/m2). In conclusion, even a short duration of IDE at moderate intensity is effective in preventing HD-associated decline in LA reservoir function. Further research is needed to explore the long-term benefits of IDE on LA function.NEW & NOTEWORTHY A single bout of intradialytic exercise (IDE) at moderate intensity can prevent the hemodialysis-associated decline in left atrial (LA) function. This was partially explained by the relative preservation of left ventricular systolic function with IDE. Benefits of IDE on LA function were lost in patients with LA dilation. Further studies are needed to explore the mechanisms behind IDE-induced cardioprotection and evaluate the clinical impacts of the repetitive cardioprotective effects of IDE on LA function.


Assuntos
Função do Átrio Esquerdo , Estudos Cross-Over , Diálise Renal , Função Ventricular Esquerda , Humanos , Masculino , Diálise Renal/efeitos adversos , Feminino , Pessoa de Meia-Idade , Idoso , Estudos Prospectivos , Átrios do Coração/fisiopatologia , Terapia por Exercício/métodos , Resultado do Tratamento
2.
J Am Soc Nephrol ; 34(8): 1445-1455, 2023 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-37071035

RESUMO

SIGNIFICANCE STATEMENT: Hemodialysis (HD) can lead to acute left ventricular (LV) myocardial wall motion abnormalities (myocardial stunning) due to segmental hypoperfusion. Exercise during dialysis is associated with favorable effects on central hemodynamics and BP stability, factors considered in the etiology of HD-induced myocardial stunning. In a speckle-tracking echocardiography analysis, the authors explored effects of acute intradialytic exercise (IDE) on LV regional myocardial function in 60 patients undergoing HD. They found beneficial effects of IDE on LV longitudinal and circumferential function and on torsional mechanics, not accounted for by cardiac loading conditions or central hemodynamics. These findings support the implementation of IDE in people with ESKD, given that LV transient dysfunction imposed by repetitive HD may contribute to heart failure and increased risk of cardiac events in such patients. BACKGROUND: Hemodialysis (HD) induces left ventricular (LV) transient myocardial dysfunction. A complex interplay between linear deformations and torsional mechanics underlies LV myocardial performance. Although intradialytic exercise (IDE) induces favorable effects on central hemodynamics, its effect on myocardial mechanics has never been comprehensively documented. METHODS: To evaluate the effects of IDE on LV myocardial mechanics, assessed by speckle-tracking echocardiography, we conducted a prospective, open-label, two-center randomized crossover trial. We enrolled 60 individuals with ESKD receiving HD, who were assigned to participate in two sessions performed in a randomized order: standard HD and HD incorporating 30 minutes of aerobic exercise (HDEX). We measured global longitudinal strain (GLS) at baseline (T0), 90 minutes after HD onset (T1), and 30 minutes before ending HD (T2). At T0 and T2, we also measured circumferential strain and twist, calculated as the net difference between apical and basal rotations. Central hemodynamic data (BP, cardiac output) also were collected. RESULTS: The decline in GLS observed during the HD procedure was attenuated in the HDEX sessions (estimated difference, -1.16%; 95% confidence interval [95% CI], -0.31 to -2.02; P = 0.008). Compared with HD, HDEX also demonstrated greater improvements from T0 to T2 in twist, an important component of LV myocardial function (estimated difference, 2.48°; 95% CI, 0.30 to 4.65; P = 0.02). Differences in changes from T0 to T2 for cardiac loading and intradialytic hemodynamics did not account for the beneficial effects of IDE on LV myocardial mechanics kinetics. CONCLUSIONS: IDE applied acutely during HD improves regional myocardial mechanics and might warrant consideration in the therapeutic approach for patients on HD.


Assuntos
Miocárdio Atordoado , Disfunção Ventricular Esquerda , Humanos , Estudos Prospectivos , Ecocardiografia/métodos , Função Ventricular Esquerda , Exercício Físico , Disfunção Ventricular Esquerda/diagnóstico por imagem , Disfunção Ventricular Esquerda/etiologia , Disfunção Ventricular Esquerda/prevenção & controle
3.
Stroke ; 54(12): 3097-3106, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37909205

RESUMO

BACKGROUND: Stroke survivors are frequently physically inactive. However, evidence of the effectiveness of active physiotherapy on physical activity level in stroke survivors is scarce. METHODS: We conducted a systematic review and meta-analysis of randomized controlled trials according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis statement, covering electronic searches from inception to March 16, 2022. Participants: Stroke survivors living in the community. Intervention: Any active physiotherapy, that is, involving exercises that require voluntary effort. Outcome measure: Objective and subjective physical activity level. RESULTS: Of 5590 identified references, 25 randomized controlled trials were eligible, and 21 had available data. The random-effects meta-analysis resulted in a small, significant effect size in favor of active physiotherapy measured using objective or subjective tools (21 studies, 1834 participants, standardized mean difference, 0.22 [95% CI, 0.04-0.40]; heterogeneity I2=65%), and a medium significant effect when objective tools were used (9 studies, 424 participants, standardized mean differences, 0.48 [95% CI, 0.03-0.92]; I2=73%). Meta-regression showed that 35% of the variance in trial outcome was explained by the measurement tool (objective or subjective) and 23% by age. None of the variances were associated with a specific dosage in terms of frequency, time, exercise duration, or the severity of the disability. CONCLUSIONS: Active physiotherapy seems to increase objective physical activity in community-dwelling stroke survivors. However, the evidence is of very low certainty. REGISTRATION: URL: https://www.crd.york.ac.uk/PROSPERO/; Unique identifier: CRD42022315639.


Assuntos
Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral , Humanos , Modalidades de Fisioterapia , Acidente Vascular Cerebral/terapia , Exercício Físico , Terapia por Exercício/métodos , Sobreviventes , Reabilitação do Acidente Vascular Cerebral/métodos
4.
Sensors (Basel) ; 23(12)2023 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-37420906

RESUMO

BACKGROUND: Health care professionals need a valid tool to assess the physical ability of patients with chronic diseases. We aimed to assess the validity of the results of physical fitness tests estimated by a wrist wearable device in young adults and chronic disease people. METHODS: Participants wore a sensor placed on their wrist and performed two physical fitness tests (sit to stand (STS) and time up and go (TUG)). We checked the concordance of sensor-estimated results using Bland-Altman analysis, root-mean-square error, and intraclass coefficient of correlation (ICC). RESULTS: In total, 31 young adults (groups A; median age = 25 ± 5 years) and 14 people with chronic diseases (groups B; median age = 70 ± 15 years) were included. Concordance was high for both STS (ICCA = 0.95, and ICCB = 0.90), and TUG (ICCA = 0.75, ICCB = 0.98). The best estimations were given by the sensor during STS tests in young adults (mean bias = 0.19 ± 2.69; p = 0.12) and chronic disease people (mean bias = -0.14 ± 3.09 s; p = 0.24). The sensor provided the largest estimation errors over 2 s during the TUG test in young adults. CONCLUSION: This study showed that the results provided by the sensor are consistent with those of the gold standard during STS and TUG in both healthy youth and people with chronic diseases.


Assuntos
Dispositivos Eletrônicos Vestíveis , Humanos , Adulto Jovem , Adolescente , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Aptidão Física , Teste de Esforço/métodos , Exercício Físico , Doença Crônica , Reprodutibilidade dos Testes
5.
Arch Phys Med Rehabil ; 102(8): 1499-1506, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33617861

RESUMO

OBJECTIVE: To evaluate the association between self-selected walking speed (Sfree), oxygen consumption at Sfree (Vo2free), the oxygen cost of walking (Cw) at Sfree, and mobility independence and independence for activities of daily living in individuals poststroke. DESIGN: Cross-sectional study. SETTING: Hospital. PARTICIPANTS: Individuals with stroke who were able to walk without human assistance were included. We included 90 individuals (N=90; mean age, 63.5±14.0y). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Cw was captured during walking from measurements of Sfree and Vo2free. We assessed mobility independence based on the modified Functional Ambulation Classification (mFAC) and independence in activities of daily living by the Barthel Index (BI). Multiple linear regression analyses were performed to evaluate the independence of Cw, Vo2free, and Sfree from the determination of BI and mFAC among the various characteristics of the population (age, stroke delay, body mass index, motor function, spasticity). RESULTS: We reported Cw=0.36 mL/kg/m (interquartile range [IQR]=0.28 mL/kg/m), Sfree=0.60±0.32 m/s, Vo2free=11.2 mL/kg/min (IQR=1.8 mL/kg/min). The multiple linear regression analyses showed that Cw and Sfree were independently associated with the BI (P<.01) and the mFAC (P<.01) scores. Vo2free was not found to be an explanatory variable of functional independence (P>.05). CONCLUSIONS: Cw was independently associated with functional independence. This association appears to be primarily determined by Sfree and not Vo2free, underscoring the importance of evaluating and acting on Sfree to improve the functional independence of individuals with stroke.


Assuntos
Metabolismo Energético/fisiologia , Estado Funcional , Transtornos Neurológicos da Marcha/fisiopatologia , Consumo de Oxigênio/fisiologia , Reabilitação do Acidente Vascular Cerebral , Velocidade de Caminhada/fisiologia , Idoso , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Recuperação de Função Fisiológica , Teste de Caminhada
6.
J Sports Sci ; 39(13): 1489-1496, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33514289

RESUMO

WHO defines physical activity (PA) as any bodily movement produced by skeletal muscles that requires energy expenditure (EE). The purpose of this study was to compare the EE estimations by ActiGraph GT3X+ with a gold standard measurement, the portable gas analyser in a set of 3 different PAs. This cross-sectional study involved 56 participants, age range (years, [min, max]: young people [20, 33], older adults [65, 83]). Participants completed a single session of three experimental PAs including biking, treadmill walking, and treadmill running. Each participant wore five GT3X+ triaxial accelerometers and a portable gas analyser used as the gold standard measurement. The GT3X+ were placed on the wrists, the waist (centred at the pelvis), and the ankles. ActiGraph GT3X+ and MetaMax3B records were investigated through intraclass correlation coefficient. Magnitude of measurement error was estimated using Effect Size. The GT3X+ wrist and GT3X+ waist underestimated EE regardless of the PA type. The GT3X+ ankles strongly overestimated EE during biking (mean bias = 489 ± 392%) and walking (mean bias = 106 ± 58%), while it underestimated EE during running (mean bias = -47 ± 27%). The ActiGraph GT3X+ does not provide accurate EE estimates across a range of placement locations during moderate and high-intensity PA.


Assuntos
Actigrafia/normas , Metabolismo Energético/fisiologia , Exercício Físico/fisiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Tornozelo , Calorimetria Indireta , Estudos Transversais , Feminino , Voluntários Saudáveis , Humanos , Masculino , Pelve , Reprodutibilidade dos Testes , Punho , Adulto Jovem
7.
Brain Inj ; 33(10): 1341-1346, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31309843

RESUMO

Objective: To explore the validity of energy expenditure estimates using the SenseWear Armband during a sequence of four daily living activities in patients post-stroke. Method: Patients with stroke who were able to walk during 6 min without human assistance were asked to wear the SenseWear Armband on the non-paretic arm while performing transfers, a manual task, walking, and walking up and down stairs. The energy expenditure estimated using the SenseWear Armband was compared to the energy expenditure calculated from oxygen consumption, measured by a portable indirect calorimeter (Metamax 3B). The mean of energy expenditure was pooled for each task. Accuracy was explored by mean bias (MB) of Bland-Altman analysis and root mean square error (RMSE), agreement by 95% of limits of agreement (95%LoA) and coefficient of correlation (r). Results: Thirty-eight participants (65.7 ± 13.5 years) were included. The SenseWear Armband globally underestimated energy expenditure, MB = 9.77 kcal for the whole sequence. RMSE were large, accounting for 15% to 41% of the measured energy expenditure. Agreement was low with r < 0.70 and 95%LoA from 42% to 93% of the measured energy expenditure. Conclusions: This study reported a global underestimation and a low level of agreement of the energy expenditure estimated by SenseWear Armband in four daily living activities in patients after stroke. Abbreviations: EE: Energy Expenditure; NIHSS: National Institute of Health Stroke Score.


Assuntos
Atividades Cotidianas , Metabolismo Energético , Acidente Vascular Cerebral/fisiopatologia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Paresia/fisiopatologia , Paresia/reabilitação , Reprodutibilidade dos Testes , Reabilitação do Acidente Vascular Cerebral , Caminhada , Dispositivos Eletrônicos Vestíveis
8.
Sensors (Basel) ; 19(11)2019 May 31.
Artigo em Inglês | MEDLINE | ID: mdl-31159246

RESUMO

BACKGROUND: Health professionals need valid devices to assess a stroke individual's ability to walk. The aim was to evaluate the validity of the estimation of the walked distance by wearable devices and the impact of the sensor's position in stroke individuals. METHODS: Post-stroke patients able to walk without human assistance were equipped with several wearable devices: pedometers, Actigraph, and Sensewear Armband placed according to the manufacturers' recommendations. Participants walked for 6 min at a comfortable speed wearing all sensors at the same time. We analyzed the validity of sensor-estimated distances according to their position using Bland-Altman analysis, root-mean-square error, and coefficient of correlation. RESULTS: In total, 35 individuals were included (mean age = 65 ± 15 years). The best estimations were given by the Actigraph worn on the unaffected ankle (mean bias (MB) = 22.6 ± 32.4 m; p = 0.37) and by the pedometer worn on the unaffected hip (MB = 20.5 ± 24.6 m; p = 0.46). The other sensors and positions provided large estimation errors over 95 m (p < 0.05). CONCLUSION: This study led to a recommendation of a pedometer worn on the unaffected hip or an Actigraph worn on the unaffected ankle to get a valid estimation of the distance walked by stroke individuals.

9.
Clin Rehabil ; 32(12): 1696-1704, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30012036

RESUMO

OBJECTIVE:: To explore the validity of the Actigraph and the influence of the placement of the sensor when estimating the active energy expenditure in four common daily activities (transfers, manual task, walking in overground and walking up and down stairs) in stroke survivors. DESIGN:: Cross-sectional study. SETTING:: Department of Physical Medicine and Rehabilitation. SUBJECTS:: A total of 46 subjects affected with stroke sequelae were wearing the Actigraph on three different locations-ankle, hip and wrist on the non-affected side-and performed four tasks: transfers, manual task, walking on flat ground and walking up and down stairs. MAIN MEASURES:: The values of active energy expenditure estimated by the Actigraph were compared to those measured by a portable breathing gas exchange analyzer Metamax3B. The accuracy and agreement between Actigraph and Metamax values were analyzed with mean bias, root mean square error, correlation coefficient and Bland-Altman plots for each task and each sensor location. RESULTS:: The mean bias between the Metamax and Actigraph placed on wrist, hip and ankle were, respectively, MD = 1.16 kcal (%MD = 3%), MD =-20.44 kcal (%MD =-58%) and MD = 17.64 kcal (%MD = 50%). The agreement with the Metamax was poor in general regardless of the sensor location and type of task ( r = 0.12-0.58). CONCLUSION:: This study found large differences and a poor agreement between the active energy expenditure as measured by the Actigraph and the Metamax according to the location of the sensor and the type of task performed by the subject.


Assuntos
Acelerometria/instrumentação , Atividades Cotidianas , Metabolismo Energético/fisiologia , Atividade Motora/fisiologia , Acidente Vascular Cerebral/fisiopatologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes
10.
J Rehabil Med ; 56: jrm40559, 2024 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-38915294

RESUMO

OBJECTIVE: To compare the estimation of time spent on 4 categories of physical activity intensity (sedentary behaviour, light physical activity, moderate physical activity, and vigorous physical activity) between a motion sensor and a heart rate monitor during a stroke outpatient rehabilitation session. DESIGN: A multicentre cross-sectional observational study. SUBJECTS/PATIENTS: Participants with stroke (> 6 months) undergoing outpatient rehabilitation sessions. METHODS: Participants wore the SenseWear Armband motion sensor and the Polar H10 heart rate monitor during 2 rehabilitation sessions. The times estimated by each device were compared using a generalized linear mixed model and post-hoc tests. RESULTS: Ninety-nine participants from 29 clinics were recruited and data from 146 sessions were included in the analysis. The estimated times depended on the devices and the physical activity intensity category (F = 135, p < 0.05). The motion sensor estimated more time spent in sedentary behaviour and less time spent in moderate physical activity and vigorous physical activity than the heart rate monitor. CONCLUSION: The motion sensor and heart rate monitor provide different estimates of physical activity intensity during stroke rehabilitation. Further research is needed to establish the most appropriate device for each physical activity category.


Assuntos
Exercício Físico , Frequência Cardíaca , Reabilitação do Acidente Vascular Cerebral , Humanos , Masculino , Feminino , Estudos Transversais , Pessoa de Meia-Idade , Frequência Cardíaca/fisiologia , Exercício Físico/fisiologia , Idoso , Acidente Vascular Cerebral/fisiopatologia , Pacientes Ambulatoriais
11.
Top Stroke Rehabil ; 31(1): 104-115, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-37120850

RESUMO

BACKGROUND: Currently, little is known on the relationships between cardiorespiratory fitness (CF), physical activity (PA), and functional outcomes after stroke, especially in low- and middle-income countries. OBJECTIVES: We examine the relationships between CF, PA, and functional outcomes in one-year poststroke in Benin, a lower middle-income country. METHODS: A case-control study was carried out in northern Benin. Twenty-one participants with chronic strokes were matched to 42 controls according to sex and age. PA patterns and associated energy expenditure (EE) were assessed with a BodyMedia's senseWear armband. CF was evaluated with the Physical Working Capacity at 75% of the predicted maximal heart rate index. The functional outcomes were evaluated using the modified Rankin scale (mRS) and the ACTIVLIM-Stroke scale. RESULTS: Both people with stroke and the healthy pairs spent much time in sedentary behavior (median [P25; P75]: 672 [460; 793] min vs 515 [287; 666] min, p = 0.006). Although people with chronic stroke performed fewer steps compared to healthy controls (median: 2767 vs 5524, p = 0.005), results showed that total EE was not statistically significant in either group (median: 7166 Kcal vs 8245 Kcal, p = 0.07). In addition, the mRS score (r = 0.47, p = 0.033) and the ACTIVLIM-Stroke measure (r = 0.52, p = 0.016) were moderately associated with the CF index of people with chronic stroke. CONCLUSION: The study showed clear trends for lower levels of PA in both people with chronic stroke and health controls. A correlation exists between CF, disability, and functional outcomes among stroke patients.


Assuntos
Aptidão Cardiorrespiratória , Acidente Vascular Cerebral , Humanos , Acidente Vascular Cerebral/terapia , Estudos de Casos e Controles , Benin , Exercício Físico , Aptidão Física
12.
Can J Occup Ther ; 90(4): 353-362, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36575643

RESUMO

Background. Chronic obstructive pulmonary disease (COPD) is a multisystemic chronic condition which may induce significant consequences in daily life activities. Preserving activities of daily living in COPD is therefore a common treatment goal among people living with COPD, which leaves ample opportunity for occupational therapy interventions to comprise part of their rehabilitation. However, the question of how exactly occupational therapists can and do contribute to pulmonary rehabilitation remains underexplored. Purpose. To reveal the contribution of occupational therapy intervention in the pulmonary rehabilitation on improving the occupational performance of patients with COPD. Method. A scoping review was performed by selecting articles focusing on occupational therapy in pulmonary rehabilitation for patients with COPD. A total of four databases were surveyed for article selection. Findings. Among nine studies selected, seven studies reported a significant improvement in the occupational performance of patients with occupational therapy. However, two studies did not observe differences between the groups regarding occupational performance. Implications. Occupational therapy in pulmonary rehabilitation seems to contribute to the improvement of occupational performances of patients with COPD. Nevertheless, research focused on this field needs to be further developed to support the positive impact of occupational therapy in COPD management.


Assuntos
Terapia Ocupacional , Doença Pulmonar Obstrutiva Crônica , Humanos , Atividades Cotidianas , Doença Pulmonar Obstrutiva Crônica/reabilitação , Doença Crônica , Qualidade de Vida
13.
Stud Health Technol Inform ; 306: 397-402, 2023 Aug 23.
Artigo em Inglês | MEDLINE | ID: mdl-37638941

RESUMO

Increased physical activity has been demonstrated as a relevant treatment after a stroke, with positive effects on impairment recovery, activity limitation, social participation and quality of life. Furthermore, PA is now recommended as part of the stroke recovery pathway, starting during inpatient care and extending through rehabilitation and community integration. The purpose of this presentation is to describe how current technologies may facilitate a continuity of care for stroke survivors. We present a synthesis of 8 studies that we have conducted to date to assess and monitor the activity level of post-stroke patients at home. The results of these studies show that home rehabilitation of post-stroke patients requires the use of individualized monitoring criteria to optimize patient care. To encourage the patient to increase his level of moderate physical activity and reduce his sedentary time, it would be recommended to propose a regularly monitored and structured program.


Assuntos
Motivação , Acidente Vascular Cerebral , Humanos , Participação Social , Qualidade de Vida , Exercício Físico , Acidente Vascular Cerebral/terapia , Sobreviventes
14.
JMIR Serious Games ; 11: e36126, 2023 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-36729572

RESUMO

BACKGROUND: The physical and cognitive loads borne during exergaming may differ from more conventional cognitive-motor dual-task trainings. OBJECTIVE: The aim of this pilot transversal study was to compare objectively measured and perceived exercise intensity during exergame, cognitive-motor dual-task, and single-task training sessions. METHODS: We recruited apparently healthy young adults who carried out one session of each type of training: exergaming, cognitive-motor dual-tasking, and single-tasking. We used a custom-made exergame as support. The sessions lasted 30 minutes, were spaced at least 24 hours apart, and took place in random order for each group of 4 participants. We used heart rates to assess exercise intensity and the modified Borg scale to assess perception of intensity. In all, 16 apparently healthy young participants carried out all sessions. RESULTS: There was no difference between the different types of training in mean heart rates (P=.27), peak heart rates (P=.50), or Borg scale scores (P=.40). Our custom-made exergame's objectively measured and perceived physical load did not differ between cognitive-motor dual-task and single-task training. CONCLUSIONS: As a result, our exergame can be considered to be as challenging as more traditional physical training. Future studies should be conducted in older adults with or without cognitive impairments and incorporate an assessment of cognitive performance.

15.
Artigo em Inglês | MEDLINE | ID: mdl-37910411

RESUMO

The electromyography (EMG) cocontraction index (CCI) given by the antagonistic/agonistic Root Mean Square (RMS) amplitude ratio of the same muscle is a qualified biomarker used for spastic cocontraction quantification and management in cerebral palsy children. However, this normative EMG ratio is likely subject to a potential source of errors with biased estimates when measuring the gastrocnemius plantar flexors activity. Due to the uneven distribution of electrical activity within the muscle volume, cocontraction levels can be misestimated, if EMGs are obtained from the sole traditional bipolar sensor location recommended by SENIAM. This preliminary study, on 10 healthy children (mean age 10 yr), investigated whether surface EMG detected proximally and distally via two pairs of bipolar electrodes, within the medial gastrocnemius (MG), provides a significant difference in CCI estimates during non-dynamic (isometric dorsiflexion) and dynamic (swing phases of gait) conditions. Gait cycles were extracted from Inertial Measurement Unit sensors. Medial gastrocnemius activity was greater distally than proximally during plantar flexion when it acts as an agonist (~24±18%) and it was greater proximally during dorsiflexion (~23±9%) when it is acting as an antagonist. As a direct consequence, CCI estimates from the conventional sensor location were significantly different (~36%) from the CCIs computed by considering broader MG regions. This difference arose in all subjects during isometric efforts and in two of 10 healthy children during the swing phase of gait who presented cocontraction patterns ( [Formula: see text]). EMG bipolar sampling encompassing proximal and distal gastrocnemius muscle regions may reduce bias in CCI computation and provide a more representative and accurate cocontraction index that is especially important for comparisons to the diseased state.


Assuntos
Espasticidade Muscular , Músculo Esquelético , Humanos , Criança , Músculo Esquelético/fisiologia , Eletromiografia , Marcha/fisiologia , Eletrodos
16.
Front Aging Neurosci ; 15: 1046676, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36819724

RESUMO

Introduction: Dual-task training may be relevant and efficient in the context of active aging. An issue in training programs lies in enhancing the adherence of participants. This can potentially be improved using games as support. We designed and developed a custom interactive exergame in this way. The objective of this pilot study was to explore the potential use of this exergame and the feasibility of our intervention, including the level of safety and adherence. The result's trends on cognitive and motor capacities, as well as on the level of motivation for physical activity, fear of falling, and quality of life of participants, were also explored. Methods: Older adults aged 65 years or older were recruited and realized 30 min of supervised training in groups of 4, 2-3 times a week for 12 weeks. Exercises consisted of incorporated cognitive and motor dual tasks, with an increased difficulty over the weeks. Our program's safety, engagement, attendance, and completion levels were evaluated. Participants' postural control in single-task and dual-task conditions, as well as their performances in mental inhibition, flexibility, working memory, mobility, and postural control, and their levels of motivation for physical activity, fear of falling, and quality of life were also assessed. We realized a per protocol statistical analysis with a p-value set at 0.05. Results: Thirty-nine participants (aged 84.6 ± 8.5 years) were recruited. No adverse events, and 89% adherence, 88% attendance, and 87% completion rates were observed. A potentially significant effect of our exergame on working memory in single-task conditions and on the cognitive aspect of dual-task conditions was also observed. We observed no differences in other parameters. Discussion: Our exergame seemed feasible and safe and was enjoyed by participants, mainly due to the gamification of our training program. Moreover, our exergame may be efficient for cognitive training in older adults, as well as for the maintenance of motor functions, motivation for physical activity, fear of falling, and quality of life levels. This constitutes the first step for our solution with interesting results that need to be further studied.

17.
Folia Med (Plovdiv) ; 65(6): 950-957, 2023 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-38351785

RESUMO

INTRODUCTION: Achieving our daily tasks depends on the speed-accuracy conflict. Physical activity plays a role in the development of our motor skills. However, the relationship between physical activity level (PAL) and fine motor skills remains largely unexplored.


Assuntos
Destreza Motora , Ácidos Ftálicos , Desempenho Psicomotor , Exercício Físico , Resinas Acrílicas
18.
Artigo em Inglês | MEDLINE | ID: mdl-37239634

RESUMO

Background: Stroke causes psychological disorders and cognitive impairments that affect activities of daily living and quality of life. Physical activity (PA) in stroke recovery is beneficial. The benefits of PA on quality of life after stroke are less documented. The aim of the study was to evaluate the effect of a home-based PA incentive program at home in post-stroke patients in the subacute phase on quality of life. Methods: This is a prospective, randomized, single-blind, and monocentric clinical trial. Eighty-three patients were randomly assigned to either an experimental group (EG; n = 42) or to a control group (CG; n = 41). The experimental group followed a home-based PA incentive program for 6 months. Three incentive methods were used: daily monitoring with an accelerometer, weekly telephone calls, and home visits every three weeks. Patients were evaluated before intervention (T0) and after intervention (T1) at 6 months. The control group was a non-intervention group receiving usual care. The outcome was the quality of life with the EuroQol EQ-5D-5L evaluated at baseline and 6 months post-intervention. Results: The mean age was 62.2 years ± 13.6 with a post-stroke time of 77.9 ± 45.1 days. The mean values of the utility index (EQ-5D-5L) in the control group and experimental group at T1 were 0.721 ± 0.207 and 0.808 ± 0.193, respectively (p = 0.02). Discussion: Our study shows a significant difference in the Global QOL index (EQ-5D-5L) between the two groups of subacute stroke patients after 6 months of the individualized coaching program, which combined home visits and weekly telephone calls.


Assuntos
Tutoria , Acidente Vascular Cerebral , Humanos , Pessoa de Meia-Idade , Qualidade de Vida/psicologia , Estudos Prospectivos , Método Simples-Cego , Atividades Cotidianas , Acidente Vascular Cerebral/terapia , Acidente Vascular Cerebral/psicologia
19.
Top Stroke Rehabil ; 19(5): 369-76, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22982823

RESUMO

OBJECTIVE: To look for a relationship between physical fatigue and physical parameters in patients at least 3 months post stroke. METHODS: We conducted a prospective cross-sectional study of 32 poststroke patients (average duration of stroke 40 months) who were recruited among in- and outpatients followed by the Department of Physical and Rehabilitation Medicine of a university hospital. Fatigue was defined as a Fatigue Severity Scale (FSS) score of 4 or more. The parameters studied were age, sex, time since stroke, Demeurisse Motor Index, Barthel Index score, new Functional Ambulation Category, Berg Balance Scale, 10-meter walk test, 6-minute walk test, Dijon Physical Activity Score, Montgomery and Asberg Depression Rating Scale, Epworth Sleepiness Scale, presence of pain, and length and area of the center of pressure displacement obtained posturographically. RESULTS: Two-thirds of patients (65.6%) were fatigued. The mean FSS score was 4.3 ± 1.8. Fatigue was not associated with the physical parameters studied; notably, there was no correlation with motor impairment, autonomy and walking capacity, or balance and physical activity. However, after multivariate analysis, we found an association between physical fatigue and time since the occurrence of stroke (P = .05). CONCLUSIONS: Our study revealed a relationship between pain and physical fatigue, as reported by 2 other studies. Poststroke fatigue management should include appropriate pain management. Further studies are necessary to determine the causes of physical fatigue after stroke.


Assuntos
Fadiga/epidemiologia , Fadiga/fisiopatologia , Atividade Motora , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/fisiopatologia , Idoso , Estudos Transversais , Avaliação da Deficiência , Fadiga/reabilitação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Equilíbrio Postural , Estudos Prospectivos , Fatores de Risco , Reabilitação do Acidente Vascular Cerebral , Caminhada
20.
J Strength Cond Res ; 26(12): 3376-84, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22237140

RESUMO

The aims of this study were to evaluate links between biochemical markers and competition and training conditions, overtraining questionnaire scores, and anthropometric characteristics of young elite rugby players and to identify evolving profiles of fatigue during the sports season. Twelve elite rugby players were included in the study. The tests were carried out every 15 days over the course of one sporting season from July until March, including the interseason. Changes in body composition parameters, blood biochemistry, and scores on various questionnaires were examined. The majority of the biochemical parameters and subjective variables showed significant variations over time. There were significant positive correlations between overtraining scores and alanine amino transferase (ALAT; r = 0.24, p < 0.05) and creatine phosphokinase (CK; r = 0.3, p < 0.01) levels. In addition, game time was significantly correlated with changes in CK (r = 0.46, p < 0.01), whereas difficult training sessions were significantly correlated with changes in both CK (r = 0.27, p < 0.05) and ALAT (r = 0.33, p < 0.01). We suggest that regular monitoring of these biochemical parameters may provide important information for the coach on the fatigue of rugby players and their perceived difficulty of training.


Assuntos
Biomarcadores/sangue , Futebol Americano/fisiologia , Fadiga Muscular/fisiologia , Alanina Transaminase/sangue , Aspartato Aminotransferases/sangue , Bilirrubina/sangue , Composição Corporal , Creatina Quinase/sangue , Creatinina/sangue , Seguimentos , França , Humanos , Estudos Longitudinais , Masculino , Educação Física e Treinamento , Inquéritos e Questionários , Triglicerídeos/sangue , Ácido Úrico/sangue , Adulto Jovem
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