Gottschall Jinger S, Okorokov Dmitri Y, Okita Noriaki, Stern Keith A
Department of Kinesiology, Pennsylvania State University, University Park, PA, USA.
J Appl Biomech. 2011 Nov;27(4):355-61. doi: 10.1123/jab.27.4.355. Epub 2011 Jul 29.
Healthy young adults transition between level and hill surfaces of various angles while walking at fluctuating speeds. These surface transitions have the potential to decrease dynamic balance in both the anterior-posterior and medial-lateral directions. Hence, the purpose of the current study was to analyze modifications in temporal-spatial parameters during hill walking transitions. We hypothesized that in comparison with level walking, the transition strides would indicate the adoption of a distinct gait strategy with a greater base of support. Thirty-four participants completed level and hill trials on a walkway with a 15-degree portable ramp apparatus. We collected data during 4 transition strides between level and ramp surfaces. In support of our hypothesis, compared with level walking, the base of support was 20% greater during 3 out of the 4 transition strides. In short, our results illustrate that healthy young adults did adopt a distinct gait strategy different from both level and hill walking during transitions strides.
健康的年轻成年人在以波动的速度行走时，会在不同角度的平面和斜坡表面之间转换。这些表面转换有可能降低前后方向和内外侧方向的动态平衡。因此，本研究的目的是分析在斜坡行走转换过程中时空参数的变化。我们假设，与在平面行走相比，转换步幅将表明采用了一种具有更宽支撑面的独特步态策略。34名参与者在带有15度便携式斜坡装置的人行道上完成了平面和斜坡试验。我们在平面和斜坡表面之间的4个转换步幅期间收集了数据。为支持我们的假设，与平面行走相比，在4个转换步幅中的3个步幅期间，支撑面宽了20%。简而言之，我们的结果表明，健康的年轻成年人在转换步幅期间确实采用了一种不同于平面行走和斜坡行走的独特步态策略。
