不同頻率跳繩運動之下肢動作差異探討

The Study of Coordination among Lower Limb Joints for Different Jumping Frequencies of Rope Jumping

謝明達(Ming-Ta Hsieh) ； 邱文信(Wen-Hsin Chiu)

《體育學報》 42卷3期 (2009/09) Pp. 17-28

https://doi.org/10.6222/pej.4203.200909.0902

摘要

Rope-jump exercise is a popular activity in the elementary school. Relationship, however, between jump frequency and lower-limb motion has not been well investigated. Since knowledge of this relationship may help teacher and coach preventing from inappropriate injury in the lower limb joint. Therefore, purpose of the study was to analyze the difference and coordination among lower limb joints for different frequencies (60, 100, 140 turns/min) of rope jumping. Methods: Fifteen elementary school students served as the subjects for this study. Each participant had been trained for at least one year in rope jumping. Kinematic data were simultaneously acquired by using VICON motion system with sampling frequency 100Hz. Kinematic analysis of lower limb coordination in school child performing varied frequencies of rope-jumping exercise. Repeated measurement with one-way ANOVA was used to exam group difference. Tukey multiple comparison was used to distinguish inter-group difference (α=.05). Results: 1.The jumping height, percentage of squatting and extending phase achieve the difference significantly (p＜.05). The order of jumping height from higher to lower were 60 turns/min, 100 turns/min and 140 turns/min. The order of percentage of squatting phase from longer to shorter were 60 turns/min, 100 turns/min and 140 turns/min. The order of percentage of extending phase from longer to shorter were 140 turns/min, 100 turns/min and 60 turns/min. 2. The angular change among lower limb joints including hip, knee and ankle joints during squatting and extending phase for different frequencies of rope jumping achieve the difference significantly (p＜.05). The order of angular change of hip and ankle joints from larger to smaller were 60 turns/min, 100 turns/min and 140 turns/min. The angular change of knee joint was larger than those of hip and ankle joints. 3. The hip joint and knee joint of 60 turns/min during squatting phase were related significantly (p＜.05). The knee joint and ankle joint of 100 turns/min and 140 turns/min during extending phase were related significantly (p＜.05). Present study results indicated that jump frequency at 60 and 100 Hz produced larger joint angle in the lower limb. This suggested that lower jumping frequency may be appropriate because it may decrease the joint impact.

關鍵字

跳繩運動 ； 協調性 ； 跳繩頻率

並列摘要

Rope-jump exercise is a popular activity in the elementary school. Relationship, however, between jump frequency and lower-limb motion has not been well investigated. Since knowledge of this relationship may help teacher and coach preventing from inappropriate injury in the lower limb joint. Therefore, purpose of the study was to analyze the difference and coordination among lower limb joints for different frequencies (60, 100, 140 turns/min) of rope jumping. Methods: Fifteen elementary school students served as the subjects for this study. Each participant had been trained for at least one year in rope jumping. Kinematic data were simultaneously acquired by using VICON motion system with sampling frequency 100Hz. Kinematic analysis of lower limb coordination in school child performing varied frequencies of rope-jumping exercise. Repeated measurement with one-way ANOVA was used to exam group difference. Tukey multiple comparison was used to distinguish inter-group difference (α=.05). Results: 1.The jumping height, percentage of squatting and extending phase achieve the difference significantly (p＜.05). The order of jumping height from higher to lower were 60 turns/min, 100 turns/min and 140 turns/min. The order of percentage of squatting phase from longer to shorter were 60 turns/min, 100 turns/min and 140 turns/min. The order of percentage of extending phase from longer to shorter were 140 turns/min, 100 turns/min and 60 turns/min. 2. The angular change among lower limb joints including hip, knee and ankle joints during squatting and extending phase for different frequencies of rope jumping achieve the difference significantly (p＜.05). The order of angular change of hip and ankle joints from larger to smaller were 60 turns/min, 100 turns/min and 140 turns/min. The angular change of knee joint was larger than those of hip and ankle joints. 3. The hip joint and knee joint of 60 turns/min during squatting phase were related significantly (p＜.05). The knee joint and ankle joint of 100 turns/min and 140 turns/min during extending phase were related significantly (p＜.05). Present study results indicated that jump frequency at 60 and 100 Hz produced larger joint angle in the lower limb. This suggested that lower jumping frequency may be appropriate because it may decrease the joint impact.

並列關鍵字

rope jump ； coordination ； jumping frequency

參考文獻

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