不同坐墊寬度對女性騎乘者坐墊壓力及踩踏表現之影響

The Effect of Bike Saddle Width to Saddle Pressure and Pedaling Performance Among Female Cyclists

林子鈞(Lin Zi-Jun)

指導教授 ： 陳家祥

國立屏東科技大學/人文暨社會科學院/休閒運動健康系所/碩士(2020年)

https://doi.org/10.6346/NPUST202000491

摘要

目的:探討女性騎乘不同坐墊寬度 (窄、坐骨寬度、寬、自選) 對坐墊壓力及踩踏表現之影響。方法:本研究招募12名有運動習慣並且具有3年以上自行車騎乘經驗之女性為受試者 (平均身高162±5.9公分、平均體重56.1±7.5公斤、平均年齡20.7±1.3歲、平均坐骨寬度15.5±1.4公分)，利用三維動作分析系統及肌電感測儀探討不同坐墊寬度對坐墊壓力及踩踏表現之影響。本研究統計方法使用重複量數單因子變異數分析進行統計分析，顯著水訂為α=.05。結果:不同坐墊寬度騎乘的運動學參數、肌肉活化程度及舒適度沒有顯著差異；但是在坐墊壓力有顯著差異，坐骨右側之最大壓力及平均壓力在坐墊較寬小於較窄及適中尺寸。恥骨及坐骨右側之壓力面積在坐墊較寬大於較窄及適中、最大壓力、平均力量適中大於較寬及自選。結論:使用較寬的坐墊可減少坐墊壓力，目前市面上的女性坐墊無法完全符合女性的坐骨寬，因此在設計坐墊時要考慮坐墊寬度，再者，改善坐墊寬度不會影響運動表現。

關鍵字

自行車 ； 肌電儀 ； 姿勢調整 ； 壓力中心

並列摘要

Purpose: This study investigated the effect of bike saddle width (narrow, sit bone width, wide, self-selected) to saddle pressure and pedaling performance. Methods: The study recruited twelve female participants (mean stature 162±5.9cm, mean weight 56.1±7.5kg, mean age 20.7±1.3 year-old, mean pubic bone width 15.5±1.4cm) with exercise habit and at least three years of cycling age. The study instrumented 3D motion analyzing system and EMG to investigate pedaling efficiency and muscle activation caused by riding on different saddle widths. The one-way repeated measurement ANOVA was carried out in the statistical analysis with a significant level of α=.05. Results: The results indicated that different saddle widths had no significant effect on kinematics, muscle activation and comfort, however, in terms of saddle pressure, a significant difference was exhibited. The maximum and mean pressure of the right sit bone was lower when riding on wider saddle comparing with narrower and medium width saddle. In terms of loaded area, maximum and mean pressure of the right pubic bone were larger on wide saddle comparing to narrower saddle, medium width and self-selected width. Conclusion: Larger saddle width could dissipate saddle pressure. Currently, products on the market do not completely match up with a variety of female sit bone widths, thus, it is suggested that saddle width should be put into consideration in future development. Furthermore, riding on different saddle widths does not affect pedaling performance.

並列關鍵字

bike ； electromyography ； bike fitting ； center of pressure

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