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Feasibility of a Recumbent Stepper for Short-Interval, Low-Volume High-Intensity Interval Exercise in Stroke
Bria L Bartsch1, Alicen A Whitaker, Shem Oloyede
1Department of Physical Therapy, Rehabilitation Science, and Athletic Training, University of Kansas Medical Center, Kansas City, Kansas (B.L.B., S.W.); Department of Neurology, University of Kansas Medical Center, Kansas City, Kansas (B.L.B., S.O., S.W., S.A.B.); Department of Physical Medicine and Rehabilitation, Medical College of Wisconsin, Milwaukee, Wisconsin (A.A.W.); Cardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin (A.A.W.); University of Kansas Alzheimer's Disease Research Center, Fairway, Kansas (S.A.B.); Department of Physical Medicine and Rehabilitation, University of Kansas Medical Center, Kansas City, Kansas (S.A.B.); and Department of Cell Biology and Physiology, University of Kansas Medical Center, Kansas City, Kansas (S.A.B).
Background And Purpose:
Studies investigating high-intensity interval exercise (HIIE) in stroke typically emphasize treadmill training. However, a literature review suggested that seated devices such as a recumbent stepper or cycle offer a promising alternative for HIIE since exercise can be prescribed using peak power output (PPO). Therefore, this would give health care professionals the ability to monitor and adapt power output for the target heart rate range. The purpose of this secondary analysis was to examine the feasibility of prescribing short-interval, low-volume HIIE using PPO in chronic stroke.
Methods:
We used several methods to test feasibility: (1)Acceptability: Measured by the percentage of participants who completed the entire HIIE protocol; (2) Implementation was assessed by the number of reported cardiac or serious adverse events during submaximal exercise testing and HIIE and the average percentage of participants reaching vigorous intensity, defined by the American College of Sports Medicine as at least 77% of age-predicted maximal heart rate (HR max ).
Results:
Data were available for 28 participants who were 32.2 (17.2) months post-stroke and 61.4 (11.9) years of age. Twenty-eight participants completed HIIE per protocol. No cardiac or serious adverse events occurred during the submaximal exercise test or during HIIE. The rapid switching between HIIE and recovery showed no evidence of blood pressure reaching unsafe thresholds. Average intensity during HIIE reached 76.8% HR max , which is slightly below the target of 77.0%.
Discussion And Conclusions:
A single bout of short-interval, low-volume HIIE, prescribed using PPO, was feasible in chronic stroke.
Abstract:
Video Abstract : Available for more insights from the authors (Supplemental Digital Content, Video, available at: http://links.lww.com/JNPT/A474 ).
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