Asymmetrical external loading acting on the musculoskeletal system is generally considered unhealthy. Despite this knowledge, carrying loads in an asymmetrical manner like carrying on one shoulder, with one hand, or on the strap across the torso is a common practice. This study is aimed at presenting the effects of the mentioned load carrying methods on muscle activity assessed by using thermal field and ground reaction forces. Infrared thermography and pedobarographic force platform (ground reaction force/pressure measurement) were used in this study. Experimental results point out an increased load-dependent asymmetry of temperature distribution on the chosen areas of torso and the influence of external loading on ground reaction forces. Results point out that wearing an asymmetrical load should be avoided and are showing which type of carrying the external load is potentially less and the most harmful.

中文翻译：

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步态时外部附加负荷对肌肉活动和地面反作用力的影响

作用于肌肉骨骼系统的不对称外部负荷通常被认为是不健康的。尽管有这些知识，以不对称的方式承载负载，例如单肩、一只手或将肩带穿过躯干，是一种常见的做法。本研究旨在展示上述负载承载方法对使用热场和地面反作用力评估的肌肉活动的影响。本研究使用红外热像仪和足压力平台（地面反作用力/压力测量）。实验结果表明，在选定的躯干区域上温度分布的依赖于负载的不对称性增加，以及外部负载对地面反作用力的影响。