A comparison of overground and treadmill running for measuring the three-dimensional kinematics of the lumbo-pelvic-hip complex
A comparison of overground and treadmill running for measuring the three-dimensional kinematics of the lumbo-pelvic-hip complex
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DOI：
10.1016/s0268-0033(01)00061-4
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发表时间：
2001-10-01
影响因子：
1.8
通讯作者：
Bennell, KL
中科院分区：
文献类型：
--
作者：
Schache, AG;Blanch, PD;Bennell, KL
目标。比较地面跑和跑步机跑在腰盆髋关节复合体的三维角运动学上的差异。研究对象内重复测量设计。背景。跑步机是一种很有吸引力的研究工具，因为速度和斜率很容易控制，所需的校准体积也减少了。然而，到目前为止，文献中还没有解决跑步机跑步模拟地面跑步的程度。10名身体健全的受试者以自己选择的速度在地面和跑步机上跑步。跑步机速度与每个受试者各自的平均地面速度相匹配。使用基于被动标记的运动分析系统获取时间-距离和三维角运动学数据。从数据中提取一组角度和时间运动学参数，并进行统计分析。地面跑与跑步机跑在所有时间-距离参数上均有显著差异。尽管如此，腰椎和骨盆的运动学在两种跑步条件下是相似的，只有三个参数有显著差异。这包括初次接触时的腰椎伸展、初次接触时的骨盆前倾和第一次最大的骨盆前倾。髋关节屈曲-伸展参数也只显示出细微的差异。在分析的17个髋关节参数中，只有初始接触时的髋关节屈曲、负荷反应时的最大髋关节屈曲、脚趾离开时的髋关节伸展、最大髋关节伸展和髋关节屈伸活动范围有显著差异。具有最小腰带速度波动的高功率跑步机能够在跑步时获得腰盆臀部复合体的典型三维运动模式的表示。
Objective. To compare overground and treadmill running for differences in the three-dimensional angular kinematics of the lumbo-pelvic-hip complex.Design. A within-subject repeated measures design.Back-ground. The treadmill is an attractive research instrument as speed and slope are easily controlled and the required calibration volume is reduced. However, the degree to which treadmill running simulates overground running has not been resolved in the literature to date.Methods. 10 able-bodied subjects ran overground and on a treadmill at a self-selected speed. The treadmill speed was matched to each subjects respective average overground speed. The time-distance and the three-dimensional angular kinematic data were captured using a passive marker based motion analysis system. A set of angular and temporal kinematic parameters were extracted from the data and subjected to statistical analyses.Results. Significant differences were found between overground and treadmill running for all the time-distance parameters. Despite this, the kinematics of the lumbar spine and pelvis were similar between the two running conditions, with only three parameters being significantly different. These were lumbar extension at initial contact, anterior pelvic tilt at initial contact and the first maximum anterior pelvic tilt. Hip flexion-extension parameters were also only found to display subtle differences. Of the 17 hip parameters analysed, only hip flexion at initial contact, maximum hip flexion at loading response, hip extension at toe off, maximum hip extension and hip flexion-extension range of motion were found to be significantly different.Conclusion. A high powered treadmill with a minimal belt speed fluctuation is capable of being used to obtain a representation of the typical three-dimensional kinematic pattern of the lumbo-pelvic-hip complex during running.