探讨体重变化对日常活动中肌肉系统疲劳和活动的影响。
Exploring the impact of body mass change on fatigue and activity of the muscular system during daily routine.
出版信息
Technol Health Care. 2023;31(6):2487-2498. doi: 10.3233/THC-235014.
BACKGROUND
Correct body weight is one of the factors that allows you to maintain a properly functioning body. Abnormal body weight can cause muscle tissue remodelling, affecting activity and muscle fatigue. Changes in the muscular system can cause occurrence of functional limitations.
OBJECTIVE
To determine the effect of weight change on fatigue and activity of the muscular system during daily activities.
METHODS
The evaluation of musculoskeletal functioning was based on the results of computer simulations conducted in the AnyBody Modeling System. The following activities were analysed: standing, sitting down and getting up from a chair, holding and lifting an object, and walking. The simulations of the activities were carried out using averaged kinematic data, and by changing body mass in the range of 50 kg to 100 kg by increments of 2 kg, to map different nutritional status from excessive thinness to extreme obesity. Identification of loads in the musculoskeletal system was based on solving an inverse dynamics problem and then the estimation of muscle force values using static optimization. The simulation results allowed to determine the value of muscle fatigue and the level of muscle activity.
RESULTS
For activities (i.e., standing, walking, sitting down and getting up from a chair) it was observed that the value of muscle fatigue increases with increasing body mass. However, for activities that cause more load on the musculoskeletal system, i.e. lifting and holding an object, the highest value of muscle fatigue was observed in underweight individuals.
CONCLUSION
The change in body weight alters the functioning of the muscular system and thus the ability to perform activities. It was shown that in case of underweight, overweight or obese people, abnormal body weight can be the reason for occurrence of difficulties in performing the activities of lifting and holding a 20 kg object, as well as walking.
背景
正确的体重是维持身体正常功能的因素之一。异常的体重会导致肌肉组织重塑，影响活动和肌肉疲劳。肌肉系统的变化会导致功能受限的发生。
目的
确定体重变化对日常活动中肌肉系统疲劳和活动的影响。
方法
肌肉骨骼系统功能的评估基于在 AnyBody 建模系统中进行的计算机模拟结果。分析了以下活动：站立、从椅子上坐下和站起来、持物和举物以及行走。使用平均运动学数据模拟活动，并通过将体重范围从 50 公斤增加到 100 公斤，每次增加 2 公斤，模拟不同的营养状态，从过度消瘦到极度肥胖。肌肉骨骼系统中的负荷识别基于求解逆动力学问题，然后使用静态优化估计肌肉力值。模拟结果允许确定肌肉疲劳值和肌肉活动水平。
结果
对于活动（即站立、行走、从椅子上坐下和站起来），观察到肌肉疲劳值随体重增加而增加。然而，对于对肌肉骨骼系统造成更大负荷的活动，即举物和持物，在体重过轻的个体中观察到肌肉疲劳的最高值。
结论
体重的变化改变了肌肉系统的功能，从而影响了完成活动的能力。结果表明，在体重过轻、超重或肥胖的情况下，异常的体重可能是导致难以完成举物和持物 20 公斤物体以及行走等活动的原因。
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