Turk J Med Sci. 2018 Oct 31;48(5):1053-1057. doi: 10.3906/sag-1709-108.
Background/aim: Weight gain is associated with balance disorders. This study intends to evaluate the postural stability in a natural stance in overweight and obese men by measuring the center of pressure (CoP) velocity in the medial-lateral (ML) and anteriorposterior (AP) directions. Materials and methods: A total number of 111 men categorized according to body mass index (BMI) into normal weight, overweight, and obese categories underwent a measurement of quiet standing with eyes open (EO) and with eyes closed (EC). Postural stability was assessed using a force platform. The average of CoP velocity was assessed in the two directions. Results: In the AP direction under EO and EC conditions, obese men swayed significantly quicker than men with normal weight. In the ML direction under EO and EC conditions, a higher velocity of CoP was seen in normal weight men than in obese men. Conclusion: The results propose a negative influence of obesity on postural stability in the AP direction. In the ML direction, obese men were more stable than normal weight men, probably caused by enlargement of the base of support in a natural stance.
背景/目的：体重增加与平衡障碍有关。本研究旨在通过测量中足压力（CoP）在内外侧（ML）和前后（AP）方向上的速度，评估超重和肥胖男性在自然姿势下的姿势稳定性。
根据体重指数（BMI），共有 111 名男性被分为正常体重、超重和肥胖三类，进行睁眼（EO）和闭眼（EC）静立测量。使用力平台评估姿势稳定性。评估两个方向的 CoP 速度平均值。
EO 和 EC 条件下，AP 方向上肥胖男性的 CoP 摆动速度明显快于正常体重男性。EO 和 EC 条件下，ML 方向上正常体重男性的 CoP 速度高于肥胖男性。
结果表明肥胖对 AP 方向的姿势稳定性有负面影响。在 ML 方向上，肥胖男性比正常体重男性更稳定，这可能是由于自然站立时支撑基础的扩大。
