The effects of prolonged standing in occupational footwear on perceived discomfort, standing balance, and gait biomechanics in young adults
研究了20名年轻人分别穿职业鞋和运动鞋站立2小时后，发现职业鞋导致脚部不适感增加46%，站立平衡的左右晃动频率增加2%，但步态参数变化与鞋类无关。
While occupational footwear (OF) are designed to protect workers from acute injury, it is unclear whether OF affects worker function in otherwise innocuous tasks (i.e., standing and walking). Twenty individuals attended two sessions, wearing athletic footwear (AF) in one and OF in the other. Perceived discomfort, standing balance and gait parameters were measured before and after a 2-h prolonged standing protocol. Compared to AF, foot discomfort was 46 ± 4% greater (p = 0.020) after prolonged standing in OF. Standing balance was also differentially affected between footwear, with medio-lateral sway frequency increasing by 2 ± 3% when wearing OF (p = 0.020) but not in AF. Prolonged standing altered some gait parameters (e.g. increased stance duration, reduced propulsive force, etc.), but all changes were independent of footwear. Therefore, wearing OF is unlikely to cause any substantial changes in standing balance or gait that increases the risk of overuse workplace injury.