Related Experiment Video
Updated: Jan 15, 2026

A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program
Published on: April 19, 2019
Physical Activity Predicts Cardiorespiratory Fitness After Stroke: A Diagnostic Accuracy Study
Kevin Moncion1, Lynden Rodrigues, Bernat de Las Heras
1School of Physical & Occupational Therapy, Faculty of Medicine, McGill University, Montreal, Canada (K.M., L.R., B.D.L.H., M.R.); Memory and Motor Rehabilitation Laboratory (MEMORY-LAB), Feil and Oberfeld Research Centre, Jewish Rehabilitation Hospital, Montreal Center for Interdisciplinary Research in Rehabilitation (CRIR), Laval, Canada (K.M., L.R., B.D.L.H., M.R.); Department of Occupational Sciences and Occupational Therapy, Faculty of Medicine, University of British Columbia, Kelowna, Canada (E.W., K.S.N.); Centre for Chronic Disease Prevention and Management, Faculty of Medicine, University of British Columbia, Kelowna, Canada (E.W., K.S.N.); School of Health and Exercise Sciences, Faculty of Health and Social Development, University of British Columbia, Kelowna, Canada (K.S.N.); Department of Physical Therapy, University of British Columba and Centre for Aging SMART at Vancouver Coastal Health, Canada (J.J.E.); and School of Rehabilitation Sciences, Faculty of Health Sciences, McMaster University, Hamilton, Canada (A.T.).
Background And Purpose:
Stroke clinicians need access to cost-effective, accurate, and time-efficient tools that can assist with cardiorespiratory fitness (V̇O 2 peak) screening. The associations and diagnostic metrics between physical activity as measured by the Physical Activity Scale for Individuals with Physical Disabilities (PASIPD) and V̇O 2 peak among individuals ≥6 months post-stroke were evaluated.
Methods:
This is a secondary analysis of an randomized controlled trial (RCT). Participants' baseline age, sex, gait speed, V̇O 2 peak, and PASIPD were included in adjusted logistic regression analyses. The association between the PASIPD (MET-hours/day) and V̇O 2 peak at 15, 12, and 18 mL/kg/min was evaluated to reflect the average, lower, and upper limits of V̇O 2 peak post-stroke, respectively. Predicted classifications and the Youden index identified cut points of the PASIPD.
Results:
Eighty-five participants (n =53 males, aged 65.1 ± 9.5 years, 1.8 ± 1.2 years post-stroke) were included. A 1-unit increase in the PASIPD (MET-hours/day) was significantly associated with 21% increased odds of identifying an individual with a V̇O 2 peak ≥ 15 mL/kg/min (adjusted OR [aOR] = 1.21; 95% CI 1.07, 1.36; P = .002) with excellent area under the curve (AUC = 0.91; 95% CI 0.85, 0.97). Consistent associations were found for a V̇O 2 peak ≥ 12 mL/kg/min (aOR = 1.15; 95% CI 1.01, 1.14; P = .046) but not for V̇O 2 peak ≥ 18 mL/kg/min (aOR = 1.04; 95% CI 0.99, 1.10; P = .15). Unadjusted Youden PASIPD cut point of 8.9 MET-hours/day may identify individuals with a V̇O 2 peak ≥ 15 mL/kg/min post-stroke (AUC = 0.69; 95% CI 0.59, 0.79).
Discussion And Conclusions:
Clinicians may use the PASIPD to screen V̇O 2 peak impairments post-stroke.
More Related Videos
Related Concept Videos
Exercise and Cardiac Output
Sustained exercise increases the muscles' oxygen demand, which can be...
Exercise and Cardiovascular Response
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Cardiac Output II: Effect of Stroke Volume on Cardiac Output
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...

