不同蹲舉動作之膝關節力矩比較

Comparision of knee joint moments for different squat postures

林子鑑(Tzu Chien Lin)

指導教授 ： 張家豪

國立臺灣師範大學/運動與休閒學院/體育學系/碩士(2009年)

摘要

摘 要
目的:探討在不同蹲舉姿勢與不同負重下膝關節力矩之差異。方法:分別以測力板、Vicon Motion Capture systems動作擷取系統擷取12位大學男生(平均年齡:20.91歲±1.32，平均體重70.83kg±5.42，平均身高:177.85cm±3.92)1/2及1/3蹲舉過程中，動力學及運動學參數。實驗以重複量數二因子變異數進行分析；並以LSD進行事後比較，顯著水準定在α = .05。結果：最大屈曲伸展力矩，1/2蹲舉為0.98 ± 0.15~2.19 ± 0.27(Nm/kg)，1/3為蹲舉0.938± 0.19~2.23 ± 0.295(Nm/kg)，蹲舉方式雖未達顯著差異，但負重較重有明顯較大的曲屈伸展力矩(p<.05)。 1/2蹲舉的最大內收外展力矩(0.36±0.25~0.88±0.37Nm/kg)明顯大於1/3蹲舉(0.35±0.23~0.76±0.38Nm/kg, p<.05)，負重較重有明顯較大的內收外展力矩(p<.05)。內旋外旋最大力矩1/2蹲舉(0.12±0.03~0.27±0.99Nm/kg)明顯大於1/3蹲舉(0.11±0.01~0.21±0.05Nm/kg p<.05)，負重較重有明顯較大的內旋外旋力矩(p<.05)。結論與建議:本研究兩種蹲舉姿勢，對於一般健康之年輕族群，是可以接受的訓練方式；在內收外展與內外旋力矩方面，1/3方式會有較小的負荷，較適合膝關節傷害復建與肌肉適能較差之族群。

關鍵字

膝關節受力 ； 蹲舉 ； 肌力訓練

並列摘要

Abstract

Purpose: to investigate the variation of different postures and loadings of barbell squats on knee joint force. Methods: The KISTER force plate and the VICON Motion Capture Systems were used to acquire 12 male college students’ (age 20.91±1.32 yrs, weight 70.83±5.42 kg, height 177.85±3.92 cm) kinetic and kinematic data during 1/2 and 1/3 squats. The selected variables were tested by two-way repeated ANOVA (α = .05) and post hoc comparisons by LSD. Results: the maximal moment of flexion/extension were 0.98 ± 0.15~2.19 ± 0.27 (Nm/kg) in 1/2 squats, and 0.938± 0.19~2.23 ± 0.295 (Nm/kg) in 1/3 squats. There were no significant difference between two types of barbell squats; nevertheless, flexion/extension moments of the knee joint were significantly greater for heavier loading than lighter loading. Adduction/ abduction moments of the knee joint were significantly greater for 1/2 squats (0.36±0.25~0.88±0.37 Nm/kg) than 1/3 squats (0.35±0.23~0.76 ±0.38 Nm/kg, p<.05), and were significantly greater for heavier loading. Internal/external rotation moments of the knee joint were significantly greater for 1/2 squats (0.12±0.03~0.27±0.99 Nm/kg) than 1/3 squats (0.11±0.01~0.21±0.05 Nm/kg, p<.05), and were significant greater for heavier loading. Conclusion: This research indicated that the two postures of loading are suitable for health young people; the 1/3 squat is more fit to knee injury and poor muscular fitness people, due to lower moments of knee adduction/abduction and knee internal/external rotation.

並列關鍵字

Knee joint force ； barbell squats ； training

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