시각적 피드백과 청각적 격려가 하지의 근력발현에 미치는 영향 = The effect of visual feedback and verbal encouragement on peak torque and total work of the quadriceps and hamstings muscle

다국어 초록 (Multilingual Abstract)

The effects of visual feedback and verbal encouragement on peak torque and total work of the quadriceps and hamstings muscle. Exercise Science, 8(3): 373-382, 1999. The purpose of this study was to determine the effects of visual feedback and verbal encouragement on peak torque and total work of the quadriceps and hamstrings muscle. All testing was performed on the cybex 6000 isokinetic dynamometer and isokinetic testing were 60。/sec and 180。/sec. Performed 4 condition which were 3 repeatition at 60。/sec, 26 repeatition at 108。/sec. Ten males(age=24.3±0.9yrs, wt= 69.4±7.1㎏, ht=173.2±7.2㎝) and 12 females(age=20.7±2.0yrs, wt=55.1±5.7㎏, ht=159.8±5.3㎝) were tested under the following conditions: (a) combined visual feedback and verbal eocouragement. (b) verbal encouragement. (c) visual feedback, (d) no feedback and encouragement. Testing order was counterbalanced to control for possible learning effects. Repeated ANOVA were used to examine the difference among test conditions Paired T-test were performed to determine where significant differences occurred. Examination of quadriceps force dale following treatment revealed that subjects generated greater peak torque when visual feedback and verbal encouragement were provided compare to no feedback and encouragement provided in males and females. Similarly, quadriceps and hamstrings peak torque value were significantly greater in verbal encouragement condition was compared to the visual feedback condition. Examination of quadriceps total work following treatment revealed that subjects generated greater total work in usual feedback and verbal encouragement conditions compared to no feedback and encouragement condition to males and females. Females quadriceps were generated great total work at visual feedback condition compared to verbal encouragement condition, however hamstrings showed great total work at verbal encouragement condition compared to visual feedback conditions.