A Single Bout of Constant-Load Exercise Test for Estimating the Time Constant of Oxygen Uptake Kinetics in Individuals With Stroke

Kazuaki Oyake; Yasuto Baba; Yuki Suda; Jun Murayama; Ayumi Mochida; Yuki Ito; Honoka Abe; Kunitsugu Kondo; Yohei Otaka; Kimito Momose

doi:10.5535/arm.21087

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저자정보: Kazuaki Oyake (Department of Physical Therapy, School of Health Sciences, Shinshu University, Nagano, Japan) Yasuto Baba (Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba, Japan) Yuki Suda (Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba, Japan) Jun Murayama (Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba, Japan) Ayumi Mochida (Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba, Japan) Yuki Ito (Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba, Japan) Honoka Abe (Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba, Japan) Kunitsugu Kondo (Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba, Japan) Yohei Otaka (Department of Rehabilitation Medicine, Tokyo Bay Rehabilitation Hospital, Chiba, Japan) Kimito Momose (Department of Physical Therapy, School of Health Sciences, Shinshu University, Nagano, Japan)

저널정보: 대한재활의학회 Annals of Rehabilitation Medicine Annals of Rehabilitation Medicine 제45권 제4호

발행연도: 2021.8

수록면: 304 - 313 (10page)

DOI: 10.5535/arm.21087

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Objective To examine the relationship between the time constant of oxygen uptake kinetics during the onset of exercise (τVO2) estimated from a single exercise bout and that obtained from three averaged exercise bouts in individuals with stroke. Methods Twenty participants with stroke performed three bouts of a constant-load pedaling exercise at approximately 80% of the workload corresponding to the ventilatory threshold to estimate τVO2. The VO2 data from the first trial of three bouts were used to estimate τVO2 for a single bout. Additionally, data collected from three bouts were ensemble-averaged to obtain τVO2 for three averaged bouts as the criterion. Results There was a very high correlation between τVO2 for a single bout (34.8±14.0 seconds) and τVO2 for three averaged bouts (38.5±13.4 seconds) (r=0.926, p<0.001). However, τVO2 for a single bout was smaller than that for three averaged bouts (p=0.006). Conclusion τVO2 for a single bout could reflect the relative difference in τVO2 for three averaged bouts among individuals with stroke. However, it should be noted that τVO2 for a single bout may be underestimated compared to τVO2 for three averaged bouts.

#Cerebrovascular disorders #Exercise test #Oxygen consumption #Rehabilitation

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이 논문의 저자 정보

Kazuaki Oyake

소속기관 Department of Physical Therapy, School of Health Sciences, Shinshu University, Nagano, Japan

주요연구분야 의약학 > 임상의학 > 재활의학

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Yasuto Baba