Neuroscience Research Australia, University of New South Wales, Randwick, New South Wales, Australia.
Res Sports Med. 2011 Jan;19(1):28-41. doi: 10.1080/15438627.2011.534968.
This study investigated the effects of various shoe features and surfaces on step time variability and pelvis accelerations (RMS) during walking in six younger and 22 older adults. Participants walked at a self-selected speed in five shoe conditions (standard, elevated heel, soft sole, hard sole, and high collar) on two surfaces: level and irregular. Results showed an age-related reduction in step time variability on the irregular surface and increased medio-lateral (ML) acceleration RMS in older people walking on the irregular versus the level surface. When wearing the elevated heel shoes, both young and old participants displayed significant reductions in pelvis ML accelerations, suggesting a compensatory strategy to counteract for lateral instability resulting from heel elevation. Overall, the findings demonstrate that older people are less able than younger ones to meet the stepping adaptability required for negotiating an irregular surface and, as a possible consequence, have more difficulty maintaining frontal plane stability on such a surface.
本研究调查了不同鞋类特征和表面对 6 名年轻成年人和 22 名年长成年人行走时步时变异性和骨盆加速度（RMS）的影响。参与者在两种表面（水平和不平坦）上以五种鞋类条件（标准、高鞋跟、软底、硬底和高帮）以自选择速度行走。结果显示，在不平坦表面上，年长参与者的步时变异性呈与年龄相关的降低，而在不平坦表面上，年长参与者的横向（ML）加速度 RMS 增加。当穿着高鞋跟鞋时，年轻和年长参与者的骨盆 ML 加速度都显著降低，这表明他们采取了一种补偿策略，以抵消由于鞋跟抬高而导致的侧向不稳定。总的来说，这些发现表明，年长参与者比年轻参与者更难以适应不规则表面所需的踏足适应性，并且可能因此在这样的表面上更难以维持额状面稳定性。
