Brenton-Rule Angela, Bassett Sandra, Walsh Annie, Rome Keith
AUT University, Health & Rehabilitation Research Institute, Auckland, New Zealand.
Clin Biomech (Bristol). 2011 Oct;26(8):885-7. doi: 10.1016/j.clinbiomech.2011.03.012. Epub 2011 Apr 16.
It has been proposed that walking footwear enhances postural stability in healthy older adults. The aim of the study is to evaluate differences between two different types of athletic footwear in relation to postural stability in healthy older adults.
A convenience sample of 21 healthy older adults with mean (SD) of 74 (5) years was recruited. Postural stability was measured using a force plate for anterior-posterior (AP) and mediolateral (ML) centre of pressure excursion for 30s with eyes closed and open using two different types of athletic footwear. Each participant performed three repetitions of bipedal standing. Two-way analysis of variance tested the interaction effect of the footwear and eye conditions on anterior-posterior (AP) and mediolateral (ML) postural sway.
There was no significant footwear-eye condition interaction for anterior-posterior(AP) postural sway but there were significant main effects for both the footwear and eye conditions (P<0.05). The significant main effects for the footwear conditions occurred between barefeet and the two shoe conditions, but not between the two shoe conditions. For mediolateral (ML) postural sway there was no significant interaction effect and no main effects for the footwear and eye conditions (P>0.05).
The results suggest that older adults demonstrate an initial destabilisation effect which could possibly be of benefit to functional ability but the long-term effects of ability of athletic footwear to enhance postural stability requires further investigation.
有人提出步行鞋能增强健康老年人的姿势稳定性。本研究的目的是评估两种不同类型的运动鞋在健康老年人姿势稳定性方面的差异。
招募了21名健康老年人的便利样本，平均（标准差）年龄为74（5）岁。使用测力板测量姿势稳定性，在闭眼和睁眼状态下，穿着两种不同类型的运动鞋，测量30秒内前后（AP）和内外侧（ML）压力中心偏移。每位参与者进行三次双足站立重复测试。双向方差分析测试了鞋子和眼睛状态对前后（AP）和内外侧（ML）姿势摆动的交互作用。
前后（AP）姿势摆动方面，鞋子与眼睛状态之间没有显著的交互作用，但鞋子和眼睛状态均有显著的主效应（P<0.05）。鞋子状态的显著主效应出现在赤脚与两种鞋子状态之间，但两种鞋子状态之间没有。对于内外侧（ML）姿势摆动，没有显著的交互作用，鞋子和眼睛状态也没有主效应（P>0.05）。
结果表明，老年人表现出一种初始的不稳定效应，这可能对功能能力有益，但运动鞋增强姿势稳定性能力的长期影响需要进一步研究。
