Upper-limb movement analysis – A comparison between two OpenSim models
Keywords:Musculoskeletal model, upper limb biomechanics, shoulder movement
In-vivo internal structural loads and muscle activation are complex to be performed, but these are crucial for quantitative evaluation of human movements. Hence some musculoskeletal models have been developed in the last decade which provide non-invasive estimations the body movements in normal conditions. Abnormal movements following injuries were simulated using biomechanical model in some previous studies. This study analysed upper limb movements by using a developed upper-extremity OpenSim model which includes strain-adjustable ligaments of the acromio-clavicular joint. In addition, movements analyzing results from using an available model developed from OpenSim community was used for comparison. The upper limb movements used for this research were recorded from two healthy participants. Shoulder range of motion resulted from the developed model and the available model are compared. The results from this comparison suggest that the proposed OpenSim model can be used for upper-limb motion analysis and evaluation.
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