Department of Sports Medicine, Chengdu Sports University, Chengdu, China.
J Sci Med Sport. 2012 Nov;15(6):554-60. doi: 10.1016/j.jsams.2012.01.004. Epub 2012 May 29.
The objective of this study is to compare plantar loads during treadmill running and running on concrete and grass surfaces.
Crossover study design was used in the study.
A total of 16 experienced heel-to-toe runners participated in the study. Plantar loads data were collected using a Novel Pedar insole sensor system during running on the treadmill, concrete, and grass surfaces at 3.8m/s running speed and then analyzed.
Compared with running on the two other surfaces, treadmill running showed a lower magnitude of maximum plantar pressure and maximum plantar force for the total foot, maximum plantar pressure at two toe regions, and maximum plantar force for the medial forefoot region and two toe regions (p<0.0017). Treadmill running also showed a longer absolute contact time at two toe regions compared with running on the other two surfaces (p<0.0017).
Treadmill running is associated with a lower magnitude of maximum plantar pressure and a lower maximum plantar force at the plantar areas. These results suggest that the plantar load distribution in treadmill running is not the same as the plantar load distribution in running on overground surfaces. Treadmill running may be useful in early rehabilitation programs. Patients with injuries in their lower extremities may benefit from the reduction in plantar loads. However, the translation to overground running needs investigation.
本研究旨在比较跑步机跑步与在混凝土和草地表面跑步时的足底负荷。
本研究采用交叉设计。
共有 16 名经验丰富的足跟至足尖跑步者参与了这项研究。使用 Novel Pedar 鞋垫传感器系统在跑步机、混凝土和草地表面以 3.8m/s 的跑步速度跑步时收集足底负荷数据，并进行分析。
与在其他两个表面跑步相比，跑步机跑步时整个足部的最大足底压力和最大足底力、两个趾区的最大足底压力以及内侧前足区和两个趾区的最大足底力较小（p<0.0017）。与在其他两个表面跑步相比，跑步机跑步时两个趾区的绝对接触时间更长（p<0.0017）。
跑步机跑步时的最大足底压力和足底各部位的最大足底力较小。这些结果表明，跑步机跑步时的足底负荷分布与在地面跑步时的足底负荷分布不同。跑步机跑步可能有助于早期康复计划。下肢受伤的患者可能受益于足底负荷的减轻。然而，需要对其在地面跑步中的应用进行研究。
