男女網球選手靜態平衡能力的差異比較

Comparison of Static Balance between Male and Female Tennis Players

周伯倫(Bo-Lun Chou) ； 蔡忠昌(Jong-Chang Tsai)

《身體活動與運動科學學刊》 2卷2期 (2013/12) Pp. 39-46

摘要

目的：本研究目的在比較男女網球選手靜態平衡表現的差異，並進一步探討身高和體重對於此差異的影響。方法：男女網球選手各10名（男性平均19.5±0.4歲、174.6±1.4公分、66.9±1.4公斤；女性平均20.9±0.7歲、166.1±1.8公分、58.7±1.8公斤）。所有選手以平衡儀評估靜態平衡能力，儀器計算平衡時晃動軌跡，並換算為前後穩定、左右穩定以及總穩定三個指數，穩定指數越小，代表晃動越小，靜態平衡能力越好。所得數據進行男女比較，並進一步以共變數分析校正身高和體重後進行比較。結果：女子選手前後穩定指數、左右穩定指數以及總穩定指數顯著低於男子選手，女子選手平衡時晃動小於男性，穩定度較佳。此外，女子選手的身高和體重也顯著低於男子。以共變數分析校正身高和體重之後，男女選手總穩定、前後穩定以及左右穩定指數的估計值差異不顯著。結論：女子網球選手靜態平衡表現優於男子選手，但是在校正身高和體重因子後，平衡表現的差異並不顯著。身高與體重可能是造成男女網球選手靜態平衡表現出現差異的原因之一，建議未來在進行運動選手平衡能力的評估時，應該考慮身高體重的影響。

關鍵字

持拍運動 ； 姿勢穩定度 ； 性別

並列摘要

This study aimed to investigate the gender difference ofstatic balance in tennis players. The results were analyzed by covariance method (ANCOVA) with height and weight as covariates. Ten male (19.5±0.4 years, 174.6±1.4 cm, 66.9±1.4 kg) and 10 female (20.9±0.7 years, 166.1±1.8cm, 58.7±1.8kg) tennis players participated in this study. The static balance of the subjects was evaluated by the Biodex Balance System. Postural sway of the center of balance on the wobble platform was recorded, and transformed to the anterior-posterior (APSI), medial-lateral (MLSI), and overall (OSI) stability indexes. The results showed that the APSI, MLSI and OSI of female players were significantly lower than those of the males. Concurrently, height and weight of female players were also significantly lower than the males. ANCOVA results showed that the height-and-weight adjusted APSI, MLSI, and OSI were not significantly different between the male and female players. This study showed that female tennis players had be tter static balance than males, but the differences vanished after adjusting for the height and weight. It is suggested that height and weight are critical factors and should be taken into consideration when investigating static balance performance.

並列關鍵字

racket sport ； postural stability ； gender difference