The effects of military body armour on the lower back and knee mechanics during toe-touch and two-legged squat tasks.
The effects of military body armour on the lower back and knee mechanics during toe-touch and two-legged squat tasks.
复制标题
在脚趾接触和两腿深蹲任务中，军用防弹衣对下背部和膝盖力学的影响。
DOI：
10.1080/00140139.2014.970589
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发表时间：
2015
期刊：
影响因子：
2.4
通讯作者：
Shapiro,Robert
中科院分区：
文献类型：
--
作者：
Phillips,Megan;Bazrgari,Babak;Shapiro,Robert
虽然在预防致命伤害方面是有效的，但军事防弹衣（BA）已经被认为会降低作战人员的表现并增加与伤害相关的肌肉骨骼疾病。考虑到关节生物力学在运动表现和受伤风险中的重要作用，我们研究了在脚尖接触（TT）和两腿深蹲（TLS）任务中，佩戴BA对下背部和膝盖生物力学的直接和长期影响。BA的直接影响是优势关节屈曲持续时间增加了40 ~ 40 ms (p≤0.02)，总任务持续时间增加了1 ~ 1 s (p≤0.02)，躯干屈曲中程附近的腰骨盆节律比降低了18% （p= 0.03）。一般来说，长时间佩戴BA（即步行45分钟）并没有发现比不戴BA行走造成更多的变化。
While effective in the prevention of otherwise lethal injuries, military body armour (BA) has been suggested to reduce warfighter's performance and increase injury-related musculoskeletal conditions. Providing the significant role of joint biomechanics in both performance and risk of injury, the immediate and prolonged effects of wearing BA on biomechanics of the lower back and knee during toe-touch (TT) and two-legged squat (TLS) tasks were investigated. The immediate effects of BA were an increase of >40 ms (p≤ 0.02) in flexion duration of the dominant joint and an ∼1 s (p≤ 0.02) increase in overall task duration as well as an ∼18% (p= 0.03) decrease in the lumbopelvic rhythm ratio near the mid-range of trunk flexion. In general the prolonged duration of wearing BA (i.e. 45 min of walking) was not found to cause more changes in our measures than walking without BA.