A comparison of muscle activity and heart rate response during backward and forward walking on an underwater treadmill

Kenji Masumoto, Shin ichiro Takasugi, Noboru Hotta, Kazutaka Fujishima, Yukihide Iwamoto

研究成果: Contribution to journalArticle査読

40 被引用数 (Scopus)

抄録

This investigation compared muscle activities and heart rate (HR) responses while subjects walked backward or forward in water, with and without a water current. Ten healthy males (23.5 ± 1.4 years) volunteered for the study. Surface electromyography (EMG) was used to evaluate muscle activities while the subjects walked in water, immersed to the level of the xiphoid process. HR responses were monitored continuously by a telemetry method. A "Flowmill" was used for this study, which involves a treadmill at the base of a water flume. Measurement of maximal voluntary contraction (MVC) of each tested muscle was undertaken prior to gait analysis. The %MVCs obtained from the paraspinal muscles, vastus medialis and tibialis anterior were all significantly greater when walking backward than when walking forward, for every experimental condition (P < 0.05). HR responses tended to be greater while walking backward than when walking forward, with a statistical significance at fast speed (P < 0.05). In conclusion, walking backward in water resulted in significantly greater muscle activation of the paraspinal muscles, vastus medialis and tibialis anterior compared with walking forward in water. These findings may be helpful in developing water-based exercise programs.

本文言語英語
ページ(範囲)222-228
ページ数7
ジャーナルGait and Posture
25
2
DOI
出版ステータス出版済み - 2 2007
外部発表はい

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Orthopedics and Sports Medicine
  • Rehabilitation

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