It has been hypothesized that the muscular efforts exerted during standing may be altered by changes in personal factors, such as the body stature and muscular strength. The goal of this work was to assess the contribution of leg muscles using a biomechanical model in different physical conditions and various initial postures. An optimized inverse dynamics model was employed to find the maximum muscular effort in 23,040 postures. The simulation results showed that mid-range knee flexion could help the healthy and strong individuals maintain balance, but those with weaker muscle strength required more knee flexion. Individuals of weak muscular constitution as well as those with tall stature are at the highest risk of imbalance/falling. The number of imbalanced postures due to deficits in the calf and hamstring muscles was reduced by 7.5 times by strengthening the whole body musculature. The calf and the hamstring muscles play a key role in balance regardless of stature.

据推测，站立时施加的肌肉力量可能会因个人因素的变化而改变，例如身体的身材和肌肉的力量。这项工作的目的是使用生物力学模型在不同的身体状况和各种初始姿势下评估腿部肌肉的贡献。使用优化的逆动力学模型来发现23,040个姿势中的最大肌肉力量。模拟结果表明，中度屈膝可以帮助健康和强壮的个体保持平衡，但是肌肉力量较弱的人则需要更多的屈膝。肌肉体质较弱的人以及身材较高的人处于失衡/掉落的风险最高。小腿和and绳肌缺陷导致的不平衡姿势的数量减少了7。通过加强全身肌肉5次。无论身高如何，小腿和and绳肌都在平衡中起关键作用。