Menz Hylton B, Lord Stephen R
Musculoskeletal Research Centre, L Trobe University, Bundoora, Victoria.
Foot Ankle Int. 2005 Jun;26(6):483-9. doi: 10.1177/107110070502600610.
Hallux valgus is a common condition that may lead to considerable pain and disability. There is also evidence that hallux valgus may impair balance and increase the risk of falling in older people. Although a number of plantar pressure studies have been undertaken in people with and without hallux valgus, little is known about how hallux valgus affects basic gait patterns or the movement of the upper body when walking.
Measurements of temporospatial parameters of gait and acceleration patterns of the head and pelvis were obtained in 71 people (24 men, 47 women) between 75 and 93 (mean 80 +/- 4) years of age when walking on both a level surface and a specially designed irregular walkway. Foot problems, vision, peripheral sensation, strength, and reaction time also were evaluated.
After adjusting for potential confounders, subjects with moderate to severe hallux valgus were found to exhibit significantly reduced velocity and step length on both walking surfaces and less rhythmic acceleration patterns in the vertical plane when walking on the irregular surface compared to subjects with no or mild hallux valgus.
These findings indicate that hallux valgus has a significant detrimental impact on gait patterns that may contribute to instability and risk of falling in older people, particularly when walking on irregular terrain.
拇外翻是一种常见病症，可能导致相当程度的疼痛和残疾。也有证据表明，拇外翻可能损害平衡并增加老年人跌倒的风险。尽管已经对有或没有拇外翻的人群进行了多项足底压力研究，但对于拇外翻如何影响基本步态模式或行走时上身的运动知之甚少。
在71名年龄在75至93岁（平均80±4岁）之间的人群（24名男性，47名女性）在平坦地面和专门设计的不规则人行道上行走时，测量了步态的时空参数以及头部和骨盆的加速度模式。还评估了足部问题、视力、周围感觉、力量和反应时间。
在调整潜在混杂因素后，发现与无或轻度拇外翻的受试者相比，中度至重度拇外翻的受试者在两个行走表面上的速度和步长均显著降低，并且在不规则表面上行走时在垂直平面上的加速度模式节律性更差。
这些发现表明，拇外翻对步态模式有显著的不利影响，这可能导致老年人不稳定和跌倒风险增加，尤其是在不规则地形上行走时。
