Hamill J, Freedson P S, Boda W, Reichsman F
Department of Exercise Science, University of Massachusetts, Amherst 01003.
Med Sci Sports Exerc. 1988 Oct;20(5):515-21. doi: 10.1249/00005768-198810000-00014.
Running kinematics and physiological responses to high intensity submaximal treadmill running in training shoes and racing flats were evaluated. Eight women (mean age = 21.9 yr) completed a peak VO2 test on the treadmill (mean peak VO2 = 49.2 ml.kg-1.min-1). In two subsequent testing sessions, subjects completed 15-min runs at a speed corresponding to 90% of peak VO2 (range = 9.9-13.4 km.hr-1) while wearing training shoes and racing flats (balanced order assignment). No significant time effect or time by shoe condition interaction was observed for the rearfoot motion variables. Maximum rearfoot angle and total rearfoot motion averaged 42% and 13.9% higher, respectively, for the racing flat (P less than 0.05). There were significant increases over time for VO2, VE, HR, and RPE, indicating an increase in cardiorespiratory response and the perception of effort over the course of the 15-min run. Thus, metabolic and perceptual indications of fatigue at the end of the run emerged but were not accompanied by rearfoot motion changes in either running shoe. These results indicate that rearfoot motion is a function of shoe design and did not change during 15 min of high intensity running.
对穿着训练鞋和竞速平底鞋进行高强度亚极量跑步机跑步时的运动学和生理反应进行了评估。八名女性（平均年龄 = 21.9岁）在跑步机上完成了最大摄氧量测试（平均最大摄氧量 = 49.2 ml·kg⁻¹·min⁻¹）。在随后的两次测试中，受试者分别穿着训练鞋和竞速平底鞋（采用平衡顺序分配），以相当于最大摄氧量90%的速度（范围 = 9.9 - 13.4 km·hr⁻¹）完成15分钟的跑步。对于后足运动变量，未观察到显著的时间效应或时间与鞋类条件的交互作用。与训练鞋相比，竞速平底鞋的最大后足角度和后足总运动分别平均高出42%和13.9%（P < 0.05）。在15分钟的跑步过程中，VO₂、VE、HR和RPE随时间显著增加，表明心肺反应和努力感知增加。因此，跑步结束时出现了疲劳的代谢和感知指标，但两种跑鞋的后足运动均未发生变化。这些结果表明，后足运动是鞋类设计的函数，在15分钟的高强度跑步过程中没有改变。
