Effects of hallux limitus on plantar foot pressure and foot kinematics during walking
Effects of hallux limitus on plantar foot pressure and foot kinematics during walking
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DOI：
10.7547/0960428
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发表时间：
2006-09-01
影响因子：
0.7
通讯作者：
Vanstaen, Kerstin
中科院分区：
文献类型：
--
作者：
Van Gheluwe, Bart;Dananberg, Howard J.;Vanstaen, Kerstin
拇趾极限对足底压力和足部运动学的影响在文献中受到的关注有限。因此，进行了一项研究来评估第一跖趾关节活动受限对足底压力的影响。同样重要的是确定基于足底压力和跖趾关节运动学的检测标准，从而能够区分受拇趾限制影响的受试者和具有正常拇趾功能的人。为了进一步了解跗骨中塌陷和拇趾极限之间的关系，研究中还包括了与跗骨中旋相关的运动学变量。两组各有 19 名受试者，一组患有拇趾限制，另一组没有功能异常，被要求以他们喜欢的速度行走，同时记录足底压力和三维足部运动学。结构性或功能性的拇趾限制的存在导致拇趾下的足底峰值压力比第一跖骨头下明显增加且速度更快。拇趾极限的其他鉴别因素是第一跖趾关节的峰值背屈、达到该峰值的时间、第一跖骨头和更外侧跖骨头的峰值压力比以及第四和第五跖骨头下达到最大压力的时间。最后，在大约 20% 的受试者中，无论有或没有拇趾限制，在足跟抬起后都会发生跗骨中旋前，验证了逆行跗骨中旋确实发生的说法。
The effects of hallux limitus on plantar foot pressure and foot kinematics have received limited attention in the literature. Therefore, a study was conducted to assess the effects of limited first metatarsophalangeal joint mobility on plantar foot pressure. It was equally important to identify detection criteria based on plantar pressures and metatarsophalangeal joint kinematics, enabling differentiation between subjects affected by hallux limitus and people with normal hallux function. To further our understanding of the relation between midtarsal collapse and hallux limitus, kinematic variables relating to midtarsal pronation were also included in the study. Two populations of 19 subjects each, one with hallux limitus and the other free of functional abnormalities, were asked to walk at their preferred speed while plantar foot pressures were recorded along with three-dimensional foot kinematics. The presence of hallux limitus, structural or functional, caused peak plantar pressure under the hallux to build up significantly more and at a faster rate than under the first metatarsal head. Additional discriminators for hallux limitus were peak dorsiflexion of the first metatarsophalangeal joint, time to this peak value, peak pressure ratios of the first metatarsal head and the more lateral metatarsal heads, and time to maximal pressure under the fourth and fifth metatarsal heads. Finally, in approximately 20% of the subjects, with and without hallux limitus, midtarsal pronation occurred after heel lift, validating the claim that retrograde midtarsal pronation does occur.