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

研究成果: Article査読

抄録

Objective To examine the relationship between the time constant of oxygen uptake kinetics during the onset of exercise ((Formula presented)VO2) 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 (Formula presented)tVO2. The VO2 data from the first trial of three bouts were used to estimate TVO2 for a single bout. Additionally, data collected from three bouts were ensemble-averaged to obtain (Formula presented)VO2 for three averaged bouts as the criterion. Results There was a very high correlation between (Formula presented)VO2 for a single bout (34.8±14.0 seconds) and TVO2 for three averaged bouts (38.5±13.4 seconds) (r=0.926, p<0.001). However, (Formula presented)VO2 for a single bout was smaller than that for three averaged bouts (p=0.006). Conclusion (Formula presented)VO2 for a single bout could reflect the relative difference in (Formula presented)VO2 for three averaged bouts among individuals with stroke. However, it should be noted that (Formula presented)VO2 for a single bout may be underestimated compared to (Formula presented)VO2 for three averaged bouts.

本文言語English
ページ(範囲)304-313
ページ数10
ジャーナルAnnals of Rehabilitation Medicine
45
4
DOI
出版ステータスPublished - 2021

All Science Journal Classification (ASJC) codes

  • リハビリテーション

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