Abstract
This study was designed to investigate the effect of whole body vibration(WBV) on the proprioceptive body position sense decline of knee joint induced by muscle fatigue. As the cross-over study, ten young college male students were assigned to WBV treatment group and control(complete rest) group with a week interval. Muscle fatigue was induced by knee flexion and extention exercise at 180˚/sec using isokinetic exercise machine(Biodex, USA). Muscle fatigue was determined at the time point when the torque conducted by each subject decreased to the 40% of one’s pre-determined maximal toque.BR The determination of proprioceptive body position sense was conducted twice(active, passive) at 55 of knee joint and the values of absolute error were measured before and after 10min-WBV or complete rest for each subject’s fatigued leg. The result was followed as this.BR 1) Muscle fatigue induced by isokinetic exercise reduced the proprioceptive position sense of knee joint(p.05)BR 2) Whole body vibration exercise contributed to the recovery from the declination of proprioceptive position sense induced by muscle fatigue(p.05)BR 3) Whole body vibration exercise contributed to the recovery from the declined maximal knee extension toque induced by muscle fatigue(p.05)
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