Nick W. Bray

ORCID: 0000-0001-5831-7842
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About
Contact & Profiles
Research Areas
  • Physical Activity and Health
  • Balance, Gait, and Falls Prevention
  • Dementia and Cognitive Impairment Research
  • Cerebral Palsy and Movement Disorders
  • Frailty in Older Adults
  • Obesity, Physical Activity, Diet
  • Nutrition and Health in Aging
  • Cardiovascular and exercise physiology
  • Fibromyalgia and Chronic Fatigue Syndrome Research
  • Functional Brain Connectivity Studies
  • Musculoskeletal pain and rehabilitation
  • Stroke Rehabilitation and Recovery
  • Cardiovascular Health and Disease Prevention
  • Body Composition Measurement Techniques
  • Vitamin D Research Studies
  • Cardiac Health and Mental Health
  • Sleep and related disorders
  • Heart Rate Variability and Autonomic Control
  • Health Systems, Economic Evaluations, Quality of Life
  • Eating Disorders and Behaviors
  • Behavioral Health and Interventions
  • Intensive Care Unit Cognitive Disorders
  • Pain Mechanisms and Treatments
  • Cardiac, Anesthesia and Surgical Outcomes
  • Long-Term Effects of COVID-19

Memorial University of Newfoundland
2024-2025

University of Calgary
2022-2023

Lawson Health Research Institute
2019-2023

Parkwood Institute
2019-2023

Western University
2018-2023

Acadia University
2022

Okanagan University College
2016-2020

University of British Columbia
2016-2020

Importance Exercise, cognitive training, and vitamin D may enhance cognition in older adults with mild impairment (MCI). Objective To determine whether aerobic-resistance exercises would improve relative to an active control if a multidomain intervention including exercises, computerized supplementation show greater improvements than exercise alone. Design, Setting, Participants This randomized clinical trial (the SYNERGIC Study) was multisite, double-masked, fractional factorial that...

10.1001/jamanetworkopen.2023.24465 article EN cc-by-nc-nd JAMA Network Open 2023-07-20

Frailty is a clinical geriatric syndrome caused by physiological deficits across multiple systems. These make it challenging to sustain homeostasis required for the demands of everyday life. Exercise likely best therapy reverse frailty status. Literature date suggests that pre-frail older adults, those with 1–2 on Cardiovascular Health Study-Frailty Phenotype (CHS-frailty phenotype), should exercise 2–3 times week, 45–60 min. Aerobic, resistance, flexibility, and balance training components...

10.1139/apnm-2016-0226 article EN Applied Physiology Nutrition and Metabolism 2016-09-21

Polypharmacy, defined as the use of five or more medications, has been repeatedly linked to fall incidence, and recently it was cross-sectionally associated with gait disturbances. Our objectives were evaluate cross-sectional longitudinal associations between polypharmacy performance in a well-established clinic-based cohort study. We also assessed whether impairments could mediate number medications incidence.Prospective community-dwelling older adults, 5 years follow-up.Geriatric clinics...

10.1111/jgs.15774 article EN Journal of the American Geriatrics Society 2019-01-30

concurrent declines in gait speed and cognition have been associated with future dementia. However, the clinical profile of 'dual decliners', those concomitant decline both cognition, has not yet described. We aimed to describe phenotype risk for incident dementia who present dual comparison non-dual decliners.prospective cohort community-dwelling older adults free at baseline. evaluated participants' speed, medical status, functionality, incidence adverse events dementia, biannually over 7...

10.1093/ageing/afaa106 article EN cc-by-nc Age and Ageing 2020-05-06

Abstract Agility is essential for “healthy” aging, but neuromuscular contributions to age‐related differences in agility are not entirely understood. We recruited healthy ( n = 32) non‐athletes (30–84 years) determine: (1) if aging associated with and (2) whether muscle strength or corticospinal tract function predicts agility. assessed via a validated knee extension test, transcranial magnetic stimulation, spatiotemporal values (i.e., leg length‐adjusted hop length variability) collected...

10.14814/phy2.70223 article EN cc-by Physiological Reports 2025-02-01

OBJECTIVES Compared to their cognitively healthy counterparts, older adults with mild cognitive impairment (MCI) exhibit higher risk of falls, specifically injuries. We sought determine whether fall in MCI is associated decline higher‐level brain gait control. DESIGN Longitudinal study. SETTING Community‐dwelling from the Gait and Brain Study Cohort. PARTICIPANTS A total 110 participants, aged 65 years or older, MCI. MEASUREMENTS Biannual assessments for medical characteristics, performance,...

10.1111/jgs.16265 article EN Journal of the American Geriatrics Society 2019-12-17

No study has performed an exercise intervention that included high-intensity, free-weight, functional resistance training, and assessed frailty status as inclusion criteria outcome measure via original, standardized tools, in pre-frail females.Determine if the strategy is not only feasible safe, but can also improve status, task performance, muscle strength.Pilot, quasi-experimental.Community.20 older-adults with pre-frailty characteristics.12-weeks (3 days/week, 45-60 minutes/session) of...

10.14283/jfa.2020.13 article EN cc-by The Journal of Frailty & Aging 2020-01-01

Canadian 24 h movement guidelines recommend engaging in >150 min/week of moderate–vigorous-intensity physical activity and ≤8 h/day sedentary time. Half post-secondary students do not meet or time guidelines. This pan-Canadian study aimed to (1) identify commonly cited motivators/barriers exercise, (2) determine which were most influential for attaining A total 341 respondents (279 females, 23 ± 4 years old, 53% met guidelines, 49% guidelines) completed an online survey regarding...

10.3390/ijerph191912225 article EN International Journal of Environmental Research and Public Health 2022-09-27

Introduction: Mild cognitive impairment (MCI) affects obstacle negotiation capabilities, potentially increasing the risk of falls in older adults. However, it is unclear whether smaller brain volumes typically observed individuals with MCI are related to hazardous this population. Methods: A total 93 participants (71.9 ± 5.36 years age; = 53/control 40) from Gait and Brain Study were analyzed. Gray matter (GM) frontal, temporal, parietal lobes entered analysis. performance was recorded using...

10.1159/000530796 article EN Gerontology 2023-01-01

Executive functions are among the first cognitive abilities to decline with age and age-related executive function slowing predisposes older adults disorders disease. Intermittent Lifestyle Physical Activity (ILPA) reflects brief, unplanned activity that occurs during routine daily activities is operationalized as bouts <60s. Our understanding of short habitual physical limited. We tested hypothesis greater amounts ILPA in moderate vigorous intensity domains would be associated better...

10.3389/fspor.2024.1393214 article EN cc-by Frontiers in Sports and Active Living 2024-05-21

Abstract Advancing age is associated with declines in cognitive function. Although physical activity thought to protect against this decline, it unclear how a short-term uptake daily steps or decline day-to-day step variability may contribute cognition among older adults. We tested associations between changes counts, and executive functions adults taking part intervention. Thirty-seven (33 females; 71.4 ± 6.3 years) completed 10-week personalized Participants wore Fitbit measure counts...

10.1038/s41598-024-58833-x article EN cc-by Scientific Reports 2024-04-05
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