体力劳动农民工足底压力的特征*

背景：国内外研究多集中于常人和患者的足底压力特征,有关体力劳动农民工足底压力特征的研究鲜见报道。 目的：测试经常性体力劳动农民工的足底压力。 方法：采用比利时Footscan USB2平板式足底压测试系统检测30名经常性参与体力劳动的农民工和30名大学生自然行走过程中的动态足底压力。 结果与结论：农民工组右足第一趾与第二、三跖骨区域的峰值压强显著高于大学生组(P < 0.01),两组足弓指数差异无显著性意义(P > 0.05)。行走过程中农民工组足落地偏角及左右足的内翻人数显著高于大学生组(P < 0.01)。说明经常性参与体力劳作对农民工的足底压力分布有明显影响,表现在足底压力前移,足内翻程度加强,行走过程中足的外偏角度增大,造成下肢伤害的可能性增高。 关键词：农民工;体力劳动;足底压力;健康;大学生 doi:10.3969/j.issn.1673-8225.2012.11.010

Plantar pressure characteristics of migrant workers who perform physical labor

BACKGROUND: Researches on plantar pressure characteristics at home and abroad are focused on ordinary people and patients. The plantar pressure characteristics of migrant workers are rarely reported. OBJECTIVE: To test the plantar pressure of migrant workers performing frequent physical labor. METHODS: A total of 30 migrant workers performing frequent physical labor were assigned into migrant worker group. While another 30 university students were assigned into university student group. Dynamic plantar pressures of all the subjects during natural walking were tested by a plate plantar pressure test system (Footscan USB2, Belgium). RESULTS AND CONCLUSION: The peak pressure of the first toe, the second and third metatarsus in the right foot of migrant workers was significantly higher than that of the university students (P < 0.01). There was no significant difference in foot arch index between the two groups (P > 0.05).The angle of foot deviation and the occurrence of strephenopodia in migrant worker group were larger than that in the university student group during natural walking (P < 0.01). These results demonstrate that frequent physical labor has an obvious effect on plantar pressure distribution in migrant workers. The phenomena include plantar pressure moving forward, increased strephenopodia extent and magnified foot deviation angle during natural walking. Therefore the possibility of lower limb injury becomes more likely.