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In-vivo measurement on the triceps surae muscle-tendon unit behavior during ankle joint movement: comparison between adults and children

踝关节运动过程中小腿三头肌肌腱单位行为的体内测量：成人和儿童的比较

基本信息

批准号：
24800065
负责人：
IWANUMA Soichiro
金额：
$ 1.58万
依托单位：
Waseda University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Research Activity Start-up
财政年份：
2012
资助国家：
日本
起止时间：
2012-08-31 至 2014-03-31
项目状态：
已结题

项目摘要

In humans, the most common daily movements are walking and running. The plantar flexor muscles and the foot arch contribute to braking and propulsion in these movements. The triceps surae muscle-tendon unit (TS-MTU), which is the main contributor to the plantar flexion, inserts on the calcaneus. Thus, it was expected that the TS-MTU would interact with the foot arch. In adolescent, although heel pain is one of the most major complaints, the mechanism of development of the pain is still unclear. In order to accumulate fundamental knowledge of the mechanism, the present study determined the structure and behavior of the foot, and interaction between foot arch and the TS-MTU in adolescents and adults. As a result, 1) the foot in adolescents was more compliant than that in adults, 2) the TS-MTU length change during ankle joint movement was smaller in adolescents than in adults.

对于人类来说，最常见的日常运动是步行和跑步。跖屈肌和足弓有助于这些运动的制动和推进。小腿三头肌腱单位（TS-MTU）是跖屈的主要贡献者，插入跟骨上。因此，预计 TS-MTU 将与足弓相互作用。在青少年中，尽管足跟痛是最主要的症状之一，但疼痛发生的机制仍不清楚。为了积累该机制的基础知识，本研究确定了青少年和成人足部的结构和行为，以及足弓和 TS-MTU 之间的相互作用。结果，1）青少年的足部比成人的足部更顺应，2）青少年踝关节运动期间的 TS-MTU 长度变化比成人更小。