최대하 트레드밀 운동에 의한 피로가 신체 동요에 미치는 영향

Abstract

The purposes of this study were to assess variation of body sway prior to and after submaximal treadmill exercise; to determine the time course of the effects of a fatiguing performed on a treadmill on body sway; and to compare position sensepriortoand after exercise in order to assess any variance in proprioception caused by submaximal treadmill exercise. The subjects were twenty-four healthy men in their twenties. They stood barefoot on the Kinesthetic Ability Training Balance Platform tomeasure body sway. Control trials wee performed with eyes alternately open and closed. In the eyes open condition, they were asked to look at a target placed at eye level 1 m in front them. A total of 10 trials, each lasting 20 seconds, wereperformed. After this series of trials, position sense was measured. Subjects then exercised on the treadmill until 85% of each person's maximal heart rate was reached. The first series of postural sway measurements began immediately after this exercise. Thesecond identical series of postural sway trials was performed at approximately 10 minutes after exercise. The third series was peformed approximately 20 minutes after exercise. This allowed approximately 5 minutes of rest between eachexperimentalseries. Position sense was measured at approximately 15 and 25 minutes after exercise. The results were as follows: 1) There was a significant increase in body sway after submaximal treadmill exercise compared to pre-exercise values under bothvisualconditions (pbodysway increased significantly after the first series but decreased significantly after the third series(P<.05). 3) Position sense, measured repeatedly after submaximal treadmill exercise, did not change significantly with respect to pre-exercisevalues(p>.05). These results suggest that fatigue.