Davis Andrea, Pemberton Troy, Ghosh Subhajit, Maffulli Nicola, Padhiar Nat
Centre for Sports and Exercise Medicine, Barts and the London School of Medicine and Dentistry, Queen Mary University of London.
Muscles Ligaments Tendons J. 2011 Oct 30;1(1):20-4. Print 2011 Jan.
To determine the effect of clipless and toe-clipped pedals on plantar foot pressure while cycling. Seven bikers and 11 healthy volunteers were tested on a Giant ATX Team mountain bike, Tekscan Clinical 5.24 F-scan® system with an inner sole pressure sensor, a Tacx Cycle force One Turbo Trainer and a Cateye Mity 8 computerized speedometer were used. The subjects wore Shimano M037 shoes and used a standard clipless and toe-clipped pedal. The seat height was set at 100% of subject's trochanteric height. Plantar pressures were recorded over 12 consecutive crank cycles at a constant speed for each of the power outputs. The videos were analysed to record the pressure exerted at 12 positions on the foot for each variable. Whether there is any dominance of any of the metatarsals, and any difference in plantar pressures between clipped and clipless pedal. There was a significant difference in the pressure at many positions of the foot, but the sites were different for each individual. General regression analysis indicated that pedal type had a statistically significant effect on plantar pressure at the sites of 1(st) metatarsal (p=0.042), 3(rd) metatarsal (p<0.001), 5(th) metatarsal (<0.001), 2(nd) (p=0.018) and 5(th) toe (p<0.001), lateral midfoot (p<0.001) and central heel (p<0.001) areas. Clipless pedals produce higher pressures which are more spread across the foot than toe-clipped pedals. This may have implications for their use in the prevention and/or management of overuse injuries in the knee and foot.
为了确定无鞋带踏板和束脚带踏板对骑行时足底压力的影响。对7名骑行者和11名健康志愿者在一辆捷安特ATX Team山地自行车上进行测试，使用了带有内底压力传感器的Tekscan Clinical 5.24 F-scan®系统、一台Tacx Cycle force One涡轮训练器和一个猫眼Mity 8电脑速度计。受试者穿着禧玛诺M037鞋子，并使用标准的无鞋带踏板和束脚带踏板。座椅高度设置为受试者转子高度的100%。在每个功率输出下，以恒定速度连续记录12个曲柄周期的足底压力。对视频进行分析，以记录每个变量在足部12个位置施加的压力。是否存在任何跖骨的优势，以及束脚带踏板和无鞋带踏板之间足底压力的任何差异。足部许多位置的压力存在显著差异，但每个个体的部位不同。一般回归分析表明，踏板类型对第一跖骨（p = 0.042）、第三跖骨（p < 0.001）、第五跖骨（< 0.001）、第二跖骨（p = 0.018）和第五趾（p < 0.001）、足外侧中部（p < 0.001）和足跟中部（p < 0.001）区域的足底压力有统计学显著影响。无鞋带踏板产生的压力更高，且比束脚带踏板更分散在足部。这可能对它们在预防和/或管理膝盖和足部过度使用损伤中的应用有影响。
