RESUMEN
Daylight saving time (DST) is a Western biannual time transition, setting the clock back 1 h in the fall and forward 1 h in the spring. There is an epidemiological link between DST and acute myocardial infarction risk in the first week following the spring shift; however, the mechanisms underlying the effect of DST on cardiovascular function remain unclear. The purpose of this study was to explore the short-term cardiovascular changes induced by fall and spring shifts in DST in a convenience sample of healthy adults. We hypothesized that spring, but not fall, DST shifts would acutely increase central pulse wave velocity, the gold standard measurement of central arterial stiffness. Twenty-one individuals (fall: n = 10; spring: n = 11) participated in four visits, occurring 1 wk before and at +1, +3, and +5 days after spring and fall time transitions. Central, brachial, and radial pulse wave velocity as well as carotid augmentation index were assessed with applanation tonometry. Sleep quality and memory function were assessed via questionnaire and the Mnemonic Similarities Task, respectively. Neither fall or spring transition resulted in changes to cardiovascular variables (carotid-femoral pulse wave velocity, carotid-brachial pulse wave velocity, carotid-radial pulse wave velocity, heart rate, mean arterial pressure, or augmentation index), sleep quality, or cognitive function (all P > 0.05). Our findings do not provide evidence that DST shifts influence cardiovascular outcomes in healthy adults. This study emphasizes the need for further research to determine the mechanisms of increased cardiovascular disease risk with DST that help explain epidemiological trends.NEW & NOTEWORTHY The debate of whether to abolish daylight savings time (DST) is, in part, motivated by the population-level increase in all-cause mortality and incidence of cardiovascular events following DST; however, there is an absence of data to support a physiological basis for risk. We found no changes in pulse wave velocity or augmentation index during the subacute window of DST. Large multisite trials are necessary to address the small, but meaningful, effects brought on by a societal event.
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Infarto del Miocardio , Rigidez Vascular , Adulto , Humanos , Análisis de la Onda del Pulso , Presión Arterial/fisiología , Arterias Carótidas/fisiología , Arteria Braquial/fisiología , Rigidez Vascular/fisiología , Presión Sanguínea/fisiologíaRESUMEN
BACKGROUND: Long-term care (LTC) residents with dementia can benefit from rehabilitation to improve function and quality of life. However, specific goals for rehabilitation with this population are not always clear. The purpose of this study was to describe the goals for rehabilitation for LTC residents with dementia from the perspective of residents, family, and staff. METHODS: This was a phenomenological qualitative study. LTC residents with moderate to severe dementia, family members, and staff were recruited from two LTC homes in Halifax, Nova Scotia. Data were collected through semi-structured interviews and field notes from observations with residents while they were being active within the home. Data were analyzed via the principles of thematic content analysis, mapped onto the International Classification of Functioning, Disability, and Health (ICF) Model, and reported by the participant group (i.e., residents, family, or staff). RESULTS: The 15 participants were three female residents aged 82 to 98 years, seven predominantly (86%) female family members aged 56 to 74 years, and five staff members (two females, three males, aged 22 to 55 years) who were physiotherapists, a physiotherapy assistant, a healthcare aide, and a registered licenced practical nurse. Most identified goals fell within the activities and participation constructs of the ICF model and focused on maintaining or improving function, mobility, and quality of life. Specific themes included preventing falls, walking or locomoting, stair climbing, maintaining activities of daily living, engaging in enjoyable exercise, maintaining independence and human connections, keeping busy, leaving the home for activities, and participating in group activities. CONCLUSIONS: Rehabilitation goals for LTC residents living with dementia often focus on quality of life and functional activities and participation in LTC and family activities and events. Function and quality of life are interrelated, whereby functional goals influence quality of life. While some goals focus on improvement in function, maintenance or prevention of decline were also key elements. Future work should ensure rehabilitation interventions are developed relative to individually identified goals, and interventional success is measured in relation to the goal.
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Demencia , Cuidados a Largo Plazo , Masculino , Humanos , Femenino , Casas de Salud , Objetivos , Actividades Cotidianas , Calidad de Vida , FamiliaRESUMEN
A 2013 systematic review and Delphi consensus study identified 12 modifiable risk and protective factors for dementia, which were subsequently merged into the "LIfestyle for BRAin health" (LIBRA) score. We systematically evaluated whether LIBRA requires revision based on new evidence. To identify modifiable risk and protective factors suitable for dementia risk reduction, we combined an umbrella review of systematic reviews and meta-analyses with a two-round Delphi consensus study. The review of 608 unique primary studies and opinions of 18 experts prioritized six modifiable factors: hearing impairment, social contact, sleep, life course inequalities, atrial fibrillation, and psychological stress. Based on expert ranking, hearing impairment, social contact, and sleep were considered the most suitable candidates for inclusion in updated dementia risk scores. As such, the current study shows that dementia risk scores need systematic updates based on emerging evidence. Future studies will validate the updated LIBRA score in different cohorts. HIGHLIGHTS: An umbrella review was combined with opinions of 18 dementia experts. Various candidate targets for dementia risk reduction were identified. Experts prioritized hearing impairment, social contact, and sleep. Re-assessment of dementia risk scores is encouraged. Future work should evaluate the predictive validity of updated risk scores.
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Técnica Delphi , Demencia , Conducta de Reducción del Riesgo , Humanos , Demencia/epidemiología , Demencia/prevención & control , Factores de Riesgo , Estilo de Vida , Pérdida Auditiva , Sueño/fisiologíaRESUMEN
Physical activity improves the well-being of persons living with dementia but few exercise programs include them. The Dementia-Inclusive Choices for Exercise (DICE) toolkit aims to improve exercise providers' understanding of dementia and ability to support persons living with dementia in physical activity. We evaluated the co-designed DICE toolkit with exercise providers using a mixed-methods approach comprising pre/post questionnaires and interviews and reflection diaries. Among 16 participants, self-efficacy for exercise delivery to persons living with dementia and both knowledge and attitudes toward dementia significantly improved. Thematic analysis suggested participants (a) had a deeper understanding of the variability of dementia, (b) were planning for equitable access for persons living with dementia, (c) planned to promote social connection through exercise, and (d) were optimistic for future engagement with persons living with dementia. The DICE toolkit may improve exercise providers' knowledge and confidence to plan proactively to support persons living with dementia in programs and services.
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Demencia , Ejercicio Físico , Conocimientos, Actitudes y Práctica en Salud , Humanos , Demencia/psicología , Masculino , Femenino , Encuestas y Cuestionarios , Persona de Mediana Edad , Autoeficacia , Adulto , Terapia por Ejercicio/métodos , AncianoRESUMEN
Osteoarthritis is the most common condition to co-occur with other chronic health conditions and a broad exercise program on management of chronic conditions may be suitable for this group. This study evaluated the 12-week YMCA Move for Health exercise program among adults with osteoarthritis or with/at risk of chronic health conditions using a mixed-methods study design based on the reach, effectiveness, adoption, implementation, and maintenance (RE-AIM) framework. Participants (n = 66) completed the exercise program at the YMCAs in Cambridge, Kitchener, and Waterloo. Assessments included physical function, health-related quality of life, symptoms of arthritis, and physical activity levels and were conducted at baseline (B), postprogram (PP), and 3-month postprogram. Due to interruption by COVID-19, a subgroup of participants completed the 3-month postprogram assessments after the onset of the pandemic. At PP, participants with OA showed significant improvements in level of disability (B = 0.63 ± 0.45 and PP = 0.55 ± 0.47; p = .049), pain (B = 4.3 ± 2.5 and PP = 3.6 ± 2.4; p = .026), fatigue (B = 3.9 ± 3.1 and PP = 2.8 ± 2.6; p = .003), and several domains related to health-related quality of life. Despite interruption by the COVID-19 pandemic and poor maintenance of physical activity levels, nearly all improvements related to level of disability, symptoms of arthritis, and health-related quality of life observed at PP were maintained 3-months postprogram. The Move for Health program proved to be a feasible and effective community program for people with osteoarthritis. Additional supports may be needed to maintain physical activity levels after the program.
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COVID-19 , Osteoartritis , Terapia por Ejercicio/métodos , Humanos , Osteoartritis/terapia , Pandemias , Calidad de VidaRESUMEN
BACKGROUND: Physical activity (PA) is associated with physical and cognitive benefits among people living with dementia or mild cognitive impairment (PLWD/MCI) and is a meaningful activity that can improve their confidence in everyday life. Exercising in virtual reality environments (VR Exergame) is becoming an increasingly feasible and enjoyable way to promote PA and well-being in PLWD/MCI. Although co-design can significantly improve the design of technology, it is rarely done with PLWD/MCI. This study uses participatory design methods and collaborative approaches to involve key stakeholders to develop and test a VR Exergame "Seas the Day", a novel solution targeting PLWD/MCI well-being. METHODS: A multi-stage, user-centered co-design approach was used to custom-build VR Exergames tailored to the unique needs and abilities of PLWD/MCI based on a first generation of the prototype that was previously developed and tested with PLWD/MCI. This paper describes the next iteration of the prototype. Processes included concept ideation and brainstorming activities, iterative prototyping, and playtesting/input/feedback sessions with key stakeholders (PLWD/MCI, exercise professionals, engineers, VR game designers, content developers). RESULTS: The multidisciplinary and collaborative design process occurred over 15 months (overlapping with COVID-19 pandemic) with 7 PLWD/MCI (6 females; M=81.3 years) and 9 exercise professionals (7 females; M=38.1 years) to date. The game was designed to target movements identified by exercise professionals and researchers (aerobic exercises, range of motion, seated-balance, quick response to stimuli) and is structured in three exercise stages (warm-up, conditioning, cool-down). To ensure safety of participants while using VR headsets, only seated upper-limb exercises were targeted. Stakeholder feedback regarding game mechanics, aesthetics, and visual/auditory cues were gathered during brainstorming and playtesting sessions and implemented into specific game-related scenarios (tai-chi, rowing, fishing). CONCLUSION: We presented the process, outcomes, and challenges of adopting a participatory/collaborative approach with multiple stakeholder groups to co-design VR Exergames tailored to PLWD/MCI. Next steps will include a mixed-method evaluation of the VR Exergames among community-dwelling older adults and PLWD/MCI in retirement communities and long-term care to evaluate: i) feasibility and acceptability of use, ii) game user experience, iii) barriers/facilitators to uptake of VR Exergames; and iv) inform/validate VR Exergames gameplay metrics reflective of cognitive and motor performance.
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AIM: To determine if protein and energy intake is significantly associated with a family member providing eating assistance to residents in long-term care homes as compared with staff providing this assistance, when adjusting for other covariates. BACKGROUND: Who provides eating support has the potential to improve resident food intake. Little is known about family eating assistance and if this is associated with resident food intake in long-term care. DESIGN: Cross-sectional, secondary data analysis. METHODS: Between October and January 2016, multilevel data were collected from 32 long-term care homes across four Canadian provinces. Data included 3-day weighed/observed food intake, mealtime observations, physical dining room assessments, health record review, and staff report of care needs. Residents where family provided eating assistance were compared with residents who received staff-only assistance. Regression analysis determined the association of energy and protein intake with family eating assistance versus staff assistance while adjusting for covariates. RESULTS: Of those residents who required any physical eating assistance (N = 147), 38% (N = 56) had family assistance during at least one of nine meals observed. Residents who received family assistance (N = 56) and those who did not (N = 91) were statistically different in several of their physiological eating abilities. When adjusting for covariates, family assistance was associated with significantly higher consumption of protein and energy intake. CONCLUSION: Energy and protein intake is significantly higher when family provides eating assistance. Family are encouraged to provide this direct care if it is required. IMPACT: Residents who struggle with independent eating can benefit from dedicated support during mealtimes. Findings from this study provide empirical evidence that family eating assistance is associated with improved resident food intake and provides strong justification to encourage families to be active partners in the care and well-being of their relatives. Home administrators and nursing staff should support the specialized care that families can provide at mealtimes.
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Análisis de Datos , Cuidados a Largo Plazo , Canadá , Estudios Transversales , Ingestión de Alimentos , Familia , Humanos , Comidas , Casas de SaludRESUMEN
AIMS AND OBJECTIVES: This scoping review commissioned by the Public Health England, WHO collaborating Centre, aimed to explore the models and frameworks which enable nurses to develop their public health practice and deliver public health interventions to individuals, families and communities. BACKGROUND: There is a plethora of literature regarding the role, activities and scope of practice undertaken by public health nurses across the world. However, only two reviews have explored the models and frameworks used for public health nursing practice. DESIGN: The study drew upon an established framework with a narrative review drawing upon five methodological steps. METHODS: A search of databases, Medline, PsycINFO, Embase, CINHAL and British Nursing Index, was undertaken. The search took place between April 2018 and June 2018 retrieving 9,513 peer-reviewed articles published from 2008. RESULTS: Ninety-five studies were retrieved and analysed thematically. From an initial review of literature, two themes were identified: public health models used in practice and models used in public health education. Within the first theme, three subthemes were emerged: Characteristics of the interventions; Characteristics of the public health nurse; and Lack of measurable health benefits. Within the second theme, three subthemes were identified: Faculty and Students Working Together; The Experiential Academic Approach, and What works in Educating Nurses for Public Health. CONCLUSION: The review identified that many models and frameworks are used in practice. However, within public health practice there is a limited evidence base and it fails to demonstrate that the frameworks and models developed for practice result in measurable health benefits on an individual or population level. However, within education innovative models were apparent with collaborative partnerships enabling preregistration nursing students to develop public health nursing competencies. RELEVANCE TO CLINICAL PRACTICE: Innovative approaches to education of preregistration nursing students could point the way forward for the delivery of public health nursing practice.
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Enfermería en Salud Pública/organización & administración , Práctica de Salud Pública , Educación en Enfermería/organización & administración , Inglaterra , Humanos , Modelos EducacionalesRESUMEN
Persons with mild cognitive impairment (MCI) and early dementia are often physically inactive, despite associated benefits. This study explored the barriers, facilitators, and preferences for exercise among persons living with MCI/early dementia. The authors conducted 2 focus groups among persons living with MCI/early dementia (n = 4, 6 participants) and 2 focus groups among care partners (n = 3, 4 participants). The transcripts were analyzed using thematic analysis, guided by the social-ecological model. Three themes emerged, reinforcing motivation to exercise, managing changes to cognitive and physical health, and variable perceptions of dementia, each with influences from individual, care partner, and community levels. Low intrinsic motivation, poor physical/cognitive health, and stigma restricted the exercise among persons living with MCI/early dementia. The care partners motivated their partners and provided company and transportation to exercise. People with MCI/early dementia also indicated poor access to exercise providers and exercise opportunities that met their needs and preferences was a barrier to exercise participation. Knowledge translation research should develop exercise interventions at the individual, social, and community levels.
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Disfunción Cognitiva , Demencia , Ejercicio Físico , Anciano , Disfunción Cognitiva/terapia , Demencia/terapia , Grupos Focales , Humanos , Motivación , Conducta SedentariaRESUMEN
Exercise and mental stimulation may improve cognition, physical function, and well-being of people with dementia (PWD) and older adults more generally. This study evaluated changes in physical function, physical activity, exercise self-efficacy, and mental well-being with participation in Minds in Motion®, a weekly exercise and mental stimulation program for PWD (n = 343) and care partners (n = 318). Most physical function measures improved among PWD and care partners (endurance, upper and lower body strength, upper body flexibility; ps ≤ .009). Participants also reported a significant increase in weekly frequency, duration, and intensity of physical activity (ps < .001) and in mental well-being (p < .001). Exercise self-efficacy did not change (p = .16). These results suggest that Minds in Motion® yields improvements in physical function, which may translate into better functional abilities for PWD and improved ability for their partners to care for people living with dementia.
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Demencia/terapia , Terapia por Ejercicio , Salud Mental , Rendimiento Físico Funcional , Autoeficacia , Anciano , Anciano de 80 o más Años , Cuidadores , Femenino , Humanos , Masculino , Persona de Mediana Edad , Proyectos PilotoRESUMEN
BACKGROUND: Worldwide, almost 50million people lived with dementia in 2016. A cure or disease modifying pharmaceutical treatment for dementia remains elusive so alternative therapies are of critical importance. Mounting evidence supports exercise in the prevention and therapy of dementia. However, the cognitive, physical, and psychological challenges common to dementia along with a poor understanding and accommodation of dementia in the community are major barriers to exercise. Consequently, effective delivery options need to be identified. The primary objective of this study is to compare the effectiveness of center-based (CB) exercise versus home-based (HB) exercise for achievement of physical activity guidelines among people with MCI or mild dementia. METHODS: This is a randomized parallel-group trial comparing the effects of CB and HB exercise adherence among community-dwelling adults ≥50 years with a clinical diagnosis of MCI or mild dementia. Participants will be randomized to either CB or HB exercise. The CB group will meet weekly for small group exercise and will be prescribed additional exercise to be completed independently. Participants in the HB group will be given a physical activity prescription to be completed independently in the community. Participants in HB will also be contacted by phone monthly to adjust exercise prescriptions. The primary outcome will be achievement of exercise guidelines (150 min/wk. of moderate activity) assessed using an activity monitor. Secondary objectives will evaluate cost-effectiveness and the influence of individual and environmental factors on the primary outcome. Tertiary outcomes include physical function, cognition, mood, and quality of life. DISCUSSION: There is scant research to indicate the most effective way to deliver exercise to people with MCI and mild dementia, which is needed specifically because these groups face significant barriers to exercise. To capitalize on the benefits of exercise, feasible exercise delivery options need to be identified. The results of this study will directly complement ongoing clinical trials and will be essential to implementing exercise recommendations specific to the prevention and therapy of dementia in a feasible and cost-effective manner when they emerge. TRIAL REGISTRATION: Clinicatrials.gov ; Identifier: NCT02774720 (version updated December 12, 2016).
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Disfunción Cognitiva/rehabilitación , Demencia/rehabilitación , Terapia por Ejercicio/métodos , Ejercicio Físico , Servicios de Atención de Salud a Domicilio , Centros de Rehabilitación , Adulto , Anciano , Disfunción Cognitiva/psicología , Demencia/psicología , Ejercicio Físico/psicología , Femenino , Humanos , Masculino , Calidad de Vida/psicologíaRESUMEN
BACKGROUND: Physical exercise, cognitive training, and vitamin D are low cost interventions that have the potential to enhance cognitive function and mobility in older adults, especially in pre-dementia states such as Mild Cognitive Impairment (MCI). Aerobic and progressive resistance exercises have benefits to cognitive performance, though evidence is somewhat inconsistent. We postulate that combined aerobic exercise (AE) and progressive resistance training (RT) (combined exercise) will have a better effect on cognition than a balance and toning control (BAT) intervention in older adults with MCI. We also expect that adding cognitive training and vitamin D supplementation to the combined exercise, as a multimodal intervention, will have synergistic efficacy. METHODS: The SYNERGIC trial (SYNchronizing Exercises, Remedies in GaIt and Cognition) is a multi-site, double-blinded, five-arm, controlled trial that assesses the potential synergic effect of combined AE and RT on cognition and mobility, with and without cognitive training and vitamin D supplementation in older adults with MCI. Two-hundred participants with MCI aged 60 to 85 years old will be randomized to one of five arms, four of which include combined exercise plus combinations of dual-task cognitive training (real vs. sham) and vitamin D supplementation (3 × 10,000 IU/wk. vs. placebo) in a quasi-factorial design, and one arm which receives all control interventions. The primary outcome measure is the ADAS-Cog (13 and plus modalities) measured at baseline and at 6 months of follow-up. Secondary outcomes include neuroimaging, neuro-cognitive performance, gait and mobility performance, and serum biomarkers of inflammation (C reactive protein and interleukin 6), neuroplasticity (brain-derived neurotropic factor), endothelial markers (vascular endothelial growth factor 1), and vitamin D serum levels. DISCUSSION: The SYNERGIC Trial will establish the efficacy and feasibility of a multimodal intervention to improve cognitive performance and mobility outcomes in MCI. These interventions may contribute to new approaches to stabilize and reverse cognitive-mobility decline in older individuals with MCI. TRIAL REGISTRATION: Identifier: NCT02808676. https://www.clinicaltrials.gov/ct2/show/NCT02808676 .
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Cognición/fisiología , Disfunción Cognitiva/rehabilitación , Suplementos Dietéticos , Terapia por Ejercicio/métodos , Tolerancia al Ejercicio/fisiología , Marcha/fisiología , Entrenamiento de Fuerza/métodos , Anciano , Anciano de 80 o más Años , Disfunción Cognitiva/psicología , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Resultado del TratamientoRESUMEN
BACKGROUND: The impending public health impact of Alzheimer's disease is tremendous. Physical activity is a promising intervention for preventing and managing Alzheimer's disease. However, there is a lack of evidence-based public health messaging to support this position. This paper describes the application of the Appraisal of Guidelines Research and Evaluation II (AGREE-II) principles to formulate an evidence-based message to promote physical activity for the purposes of preventing and managing Alzheimer's disease. METHODS: A messaging statement was developed using the AGREE-II instrument as guidance. Methods included (a) conducting a systematic review of reviews summarizing research on physical activity to prevent and manage Alzheimer's disease, and (b) engaging stakeholders to deliberate the evidence and formulate the messaging statement. RESULTS: The evidence base consisted of seven systematic reviews focused on Alzheimer's disease prevention and 20 reviews focused on symptom management. Virtually all of the reviews of symptom management conflated patients with Alzheimer's disease and patients with other dementias, and this limitation was reflected in the second part of the messaging statement. After deliberating the evidence base, an expert panel achieved consensus on the following statement: "Regular participation in physical activity is associated with a reduced risk of developing Alzheimer's disease. Among older adults with Alzheimer's disease and other dementias, regular physical activity can improve performance of activities of daily living and mobility, and may improve general cognition and balance." The statement was rated favourably by a sample of older adults and physicians who treat Alzheimer's disease patients in terms of its appropriateness, utility, and clarity. CONCLUSION: Public health and other organizations that promote physical activity, health and well-being to older adults are encouraged to use the evidence-based statement in their programs and resources. Researchers, clinicians, people with Alzheimer's disease and caregivers are encouraged to adopt the messaging statement and the recommendations in the companion informational resource.
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Enfermedad de Alzheimer/prevención & control , Enfermedad de Alzheimer/terapia , Ejercicio Físico , Actividades Cotidianas , Adulto , Cuidadores , Cognición , Manejo de la Enfermedad , Práctica Clínica Basada en la Evidencia , HumanosRESUMEN
BACKGROUND: Over half of stroke survivors have cognitive impairment, which impedes rehabilitation and functional recovery. Evidence suggests a single session of aerobic exercise improves cognitive functions among healthy adults. Whether this holds true for stroke survivors is unclear. The objective of this study was to examine whether one session of moderate-intensity aerobic exercise improves the cognitive control and attention of stroke survivors. METHODS: Nine people with chronic stroke (≥6 months poststroke) performed a modified Eriksen Flanker task with concurrent electroencephalography (EEG) before and immediately, 20 minutes, and 40 minutes after 20 minutes of moderate-intensity exercise and after 20 minutes of rest. The sessions were in randomized order. Accuracy and response time were recorded for congruent and incongruent stimuli. Differences in accuracy, response time, and event-related potentials (P300, reflective of decision making) were analyzed using repeated measures analysis of variance. RESULTS: Improvements in EEG measures were noted after exercise. P300 amplitude at Fz was greater 40 minutes after exercise compared with after rest (P = .007). P300 latency was also shorter at 20 minutes after exercise compared with after rest for both congruent (465.8 milliseconds versus 500.0 milliseconds; P = .02) and incongruent (468.0 milliseconds versus 532.0 milliseconds; P = .003) conditions at the central electrode on the lesional side. Differences in behavioral performance after exercise were not significant. CONCLUSIONS: Preliminary results suggest that aerobic exercise improves cortical processes underlying cognitive control and attention 20-40 minutes postexercise. Future research should confirm results in a larger sample and examine whether attention-demanding rehabilitation in this window has improved outcomes.
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Corteza Cerebral/fisiopatología , Trastornos del Conocimiento/terapia , Cognición , Terapia por Ejercicio/métodos , Accidente Cerebrovascular/terapia , Anciano , Atención , Conducta de Elección , Enfermedad Crónica , Trastornos del Conocimiento/diagnóstico , Trastornos del Conocimiento/fisiopatología , Trastornos del Conocimiento/psicología , Electroencefalografía , Potenciales Relacionados con Evento P300 , Prueba de Esfuerzo , Terapia por Ejercicio/efectos adversos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas , Ontario , Tiempo de Reacción , Accidente Cerebrovascular/diagnóstico , Accidente Cerebrovascular/fisiopatología , Accidente Cerebrovascular/psicología , Factores de Tiempo , Resultado del TratamientoRESUMEN
The mechanisms supporting functional improvement by aerobic exercise following stroke remain incompletely understood. This study investigated how cycling intensity and aerobic fitness influence cerebral blood flow (CBF) following a single exercise session. Thirteen community-living stroke survivors performed 20 min of semi-recumbent cycling at low and moderate intensities (40-50 and 60-70 % of heart rate reserve, respectively) as determined from an exercise stress test. CBF was quantified by arterial spin labeling MRI at baseline, as well as 30 and 50 min post-exercise. An intensity-dependent effect was observed in the right post-central and supramarginal gyri up to 50 min after exercise (uncorrected p < 0.005, cluster size ≥10). Regional CBF was increased 18 ± 17 % and reduced 8 ± 12 % following moderate- and low-intensity cycling, respectively. In contrast, CBF changes were similar between sessions in the right lentiform nucleus and mid-frontal gyrus, as well as the left temporal and parietal gyri. Aerobic fitness was directly related to posterior cingulate and thalamic CBF, and inversely related to precuneal CBF at rest (R (2) ≥ 0.75); however, no relationship between fitness and the post-exercise change in CBF was observed. Divergent changes in regional CBF were observed in the right parietal cortex following low- and moderate-intensity exercise, which suggests that intensity of prescribed exercise may be useful in optimizing rehabilitation.
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Corteza Cerebral/irrigación sanguínea , Circulación Cerebrovascular/fisiología , Cuerpo Estriado/irrigación sanguínea , Ejercicio Físico/fisiología , Accidente Cerebrovascular/fisiopatología , Anciano , Enfermedad Crónica , Femenino , Humanos , Angiografía por Resonancia Magnética , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Rehabilitación de Accidente CerebrovascularRESUMEN
BACKGROUND: Migraine headache has a high prevalence and a severe impact on personal, social and work life, forming a significant burden on patients, service providers and society. There is some evidence of the effectiveness of behavioural interventions to supplement drug therapy but a recognised need to identify an effective minimal contact approach to enhance access and provide a model for use in publicly funded health systems. This study uses in-depth interviews to examine patients' experience and responses to a behavioural intervention with relaxation and CBT components delivered in three individual therapist sessions with follow-up. METHODS: Qualitative study of 20 adults aged 18-75 years in London, UK, with clinically diagnosed migraine and at least four headache days per month. Semi-structured and tape recorded interviews were held post intervention based on a topic guide. Transcripts were coded and charted for all participants and analysed thematically. RESULTS: The majority of participants cited the impacts of migraine and a desire for additional non-drug treatment as their main reasons for taking part and almost all completed the course. They valued contact with the therapist and almost all reported benefiting from the therapy. Post intervention they used those techniques they found most beneficial and implemented them flexibly in their daily life to reduce stress and risks of migraine or to respond to migraine. Relaxation training (deep breathing) was easily adopted and often used post intervention. The CBT components were mainly viewed positively but regarded as more challenging to learn and implement. CONCLUSIONS: Patients' selectively identified and employed the techniques learned as 'tools' to assist in preventing and managing their migraines, with reported benefits supporting the development of minimal contact behavioural therapy to increase accessibility for adults with migraine headache and the conduct of a definitive trial.
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Terapia Cognitivo-Conductual/métodos , Trastornos Migrañosos/terapia , Terapia por Relajación/métodos , Adolescente , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Trastornos Migrañosos/psicología , Investigación Cualitativa , Resultado del Tratamiento , Adulto JovenRESUMEN
OBJECTIVE: Vitamin D deficiency affects parathyroid hormone levels and is endemic in the American population due to diet and lifestyle. The aim of this study was to evaluate a treatment algorithm using weekly doses of 50,000 IU of Vitamin D2 for thyroid and parathyroid surgery patients. STUDY DESIGN: Prospective, non-randomized. SETTING: University health sciences center. SUBJECTS AND METHODS: Patients at a thyroid center being treated for benign and malignant thyroid diseases or parathyroid disease. Subjects with total vitamin D levels less than 30 ng/dl were prospectively treated with weekly doses of 50,000 IU of vitamin D2 (D2) for durations dependent upon initial vitamin D (25-hydroxyvitamin D) levels. Vitamin D levels were measured after the treatment intervals and change in levels from baseline was determined. RESULTS: Subjects receiving 8 weeks of therapy demonstrated an average increase in vitamin D level of 13.4 ng/ml, 10 weeks of therapy showed an increase of 16.35 ng/ml, and 12 weeks showed an average increase of 21.6 ng/ml. The treatment groups had success rates of 82%, 75%, and 71% after 8, 10, and 12 weeks of therapy respectively. When only compliant patients were evaluated (defined as greater than 3-ng/ml increase after therapy), the success rates after 8, 10, and 12 weeks increased to 95%, 79%, and 71% respectively. CONCLUSIONS: A simple algorithm using 50,000 IU of vitamin D2 corrects its deficiency in the majority of subjects treated. This is a simple method of treatment for thyroid and parathyroid patients who are vitamin D deficient. Thyroid and parathyroid conditions are frequently treated by otolaryngologists and vitamin D deficiency can complicate their diagnosis and/or management.
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Algoritmos , Deficiencia de Vitamina D/tratamiento farmacológico , Vitamina D/análogos & derivados , Administración Oral , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Hormona Paratiroidea/sangre , Cooperación del Paciente , Estudios Prospectivos , Resultado del Tratamiento , Vitamina D/administración & dosificación , Vitamina D/farmacocinética , Deficiencia de Vitamina D/sangre , Deficiencia de Vitamina D/etiología , Vitaminas/administración & dosificación , Vitaminas/farmacocinéticaRESUMEN
OBJECTIVE: To determine whether attending an aerobic fitness program during inpatient stroke rehabilitation is associated with increased participation in physical activity after discharge. DESIGN: This was a prospective cohort study. Patients who received inpatient stroke rehabilitation and were discharged into the community (n = 61; mean age, 65 years) were recruited. Thirty-five participants attended a standardized aerobic fitness program during inpatient rehabilitation, whereas 26 did not. The Physical Activity Scale for Individuals with Physical Disabilities (PASIPD) and adherence to the American College of Sports Medicine (ACSM) guidelines were assessed up to 6 months after discharge. RESULTS: Participants in the fitness group had PASIPD scores and adherence to ACSM guidelines similar to those of participants in the nonfitness group up to 6 months after discharge. There was no significant correlation between volume of exercise performed during the inpatient program and amount of physical activity after discharge. CONCLUSION: Participation in an inpatient fitness program did not increase participation in physical activity after discharge in individuals with stroke. A new model of care that encourages patients to pursue physical activity after discharge and reduces the potential barriers to participation should be developed.
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Terapia por Ejercicio/métodos , Ejercicio Físico , Rehabilitación de Accidente Cerebrovascular , Adulto , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Adhesión a Directriz , Humanos , Pacientes Internos , Masculino , Persona de Mediana Edad , Actividad Motora , Cooperación del Paciente , Alta del Paciente , Aptitud Física , Estudios Prospectivos , Accidente Cerebrovascular/fisiopatología , Resultado del TratamientoRESUMEN
The Alzheimer Society of Ontario's Minds in Motion (MiM) program improves physical function and well-being of people living with dementia (PLWD) and their care partners (CP) (Regan et al., 2019). With the COVID-19 pandemic, there was an urgent need to transition to a virtual MiM that was similarly safe and effective. The purpose of this mixed methods study is to describe the standardized, virtual MiM and evaluate its acceptability, and impact on quality of life, and physical and cognitive activity of participants. Survey of ad hoc virtual MiM practices and a literature review informed the design of the standardized MiM program: 8 weeks of weekly 90-minute sessions that included 45-minutes of physical activity and 45-minutes of cognitive stimulation in each session. Participants completed a standardized, virtual MiM at one of 6 participating Alzheimer Societies in Ontario, as well as assessments of quality of life, physical and cognitive activity, and program satisfaction pre- and post-program. In all, 111 PLWD and 90 CP participated in the evaluation (average age of 74.6±9.4 years, 61.2% had a college/university degree or greater, 80.6% were married, 48.6% of PLWD and 75.6% of CP were women). No adverse events occurred. MiM participants rated the program highly (average score of 4.5/5). PLWD reported improved quality of life post-MiM (p = <0.01). Altogether, participants reported increased physical activity levels (p = <0.01) and cognitive activity levels (p = <0.01). The virtual MiM program is acceptable, safe, and effective at improving quality of life, cognitive and physical activity levels for PLWD, and cognitive and physical activity levels among CP.
Asunto(s)
Enfermedad de Alzheimer , Demencia , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Enfermedad de Alzheimer/terapia , Enfermedad de Alzheimer/psicología , Cuidadores , Demencia/terapia , Demencia/psicología , Pandemias , Calidad de VidaRESUMEN
Introduction: Pandemic-related public health restrictions limited older adults' physical activity programs and opportunities. Physical activity supports shifted to remote options, however, information on their adoption and effectiveness is limited. This study aims to describe the remote supports received by older adults and their perceived effectiveness. Additionally, it aims to describe facilitators and barriers to remote supports for physical activity among older adults, particularly those reliant on technology. Methods: This study used an explanatory, sequential, mixed-methods design. Community-dwelling older adults (≥ 60 years) were recruited to partake in a web-based survey and an optional semi-structured follow-up interview informed by the COM-B model. Participant characteristics, perceived effectiveness of remote supports, and the presence and severity of barriers were described. Changes in physical activity levels before and during the pandemic were analyzed using the Wilcoxon signed-rank test. Qualitative data underwent inductive thematic analysis. Results: Fifty seven older adults (68.3 ± 7.1 years, 43 Female) completed the survey, of which 15 participants (67.4 ± 5.8 years, 12 Female) participated in interviews. The majority were Caucasian, highly educated, and resided in Canada. Total physical activity levels showed no statistically significant change from before to during the pandemic (p = 0.74); however, at-home exercise participation and technology usage increased. Pre-recorded and real-time virtual exercise supports were perceived as most effective. Main barriers included limited contact with exercise professionals, limited access to exercise equipment or space, and decreased mental wellness. Thematic analysis identified five main themes: (i) Enabled by knowledge and resources; (ii) Diverse motivations for physical activity; (iii) Fostering participation through social connection; (iv) Supervision and safety: enabling adherence; and (v) Virtual exercise: a sustainable option with technological considerations. Conclusion: Virtual platforms show promise in supporting older adults' physical activity at home, especially for those with limited in-person access. Our study suggests that both real-time and pre-recorded virtual exercise supports are feasible, depending on technological capacity and support. While interactive real-time virtual programs allow interaction with professionals and peers, pre-recorded programs provide timing flexibility. Further research is needed to establish best practices for safe and effective virtual exercise programming, promoting its long-term adoption for supporting a wider range of older adults.