J Korean Acad Rehabil Med.  2005 Dec;29(6):578-583.

Evaluation of Exercise Efficiency with Change in Oxygen Uptake and Work Rate in Stroke Patients

Affiliations
  • 1Department of Rehabilitation Medicine, Ewha Womans University College of Medicine, Korea. freshai@medimail.co.kr

Abstract


OBJECTIVE
To evaluate exercise capacity of subacute stroke patients with nonambulatory exercise stress test and to determine whether reduced exercise efficiency is associated with functional performance. METHOD: Experimental design was prospective and observational study. Eighteen patients with moderate to severe impairment after recent stroke performed exercise stress test by repeated knee flexion and extension exercise using isokinetic dynamometer. Work rate, oxygen consumption, heart rate were assessed during exercise stress test. The dynamic response, the ratio of change in oxygen uptake to change in work rate, was measured for correlation with FIM (Functional Independence Measure) scores. Occupational therapist recorded FIM scores on the day of transfer to inpatient rehabilitation unit and on discharge. Age-matched healthy group also performed exercise stress test in same settings. RESULTS: The patients group who had similar dynamic response with age-matched healthy group showed higher FIM scores than the patients group having higher dynamic response. CONCLUSION: Nonambulatory exercise stress test could be effectively used in subacute stroke patients and the ratio of change in oxygen uptake to change in work rate was a useful variable to reveal low exercise efficiency in subacute stroke patients who had a abnormal skeletal muscle metabolic capacity.

Keyword

Stroke; Exercise stress test; Skeletal muscle metabolic capacity

MeSH Terms

Exercise Test
Heart Rate
Humans
Inpatients
Knee
Muscle, Skeletal
Observational Study
Oxygen Consumption
Oxygen*
Prospective Studies
Rehabilitation
Research Design
Stroke*
Oxygen
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