Additional considerations and study limitations
Some participants had already used the Greifer in their daily lives, which may have influenced results regarding manual dexterity. Nevertheless, the potential impact of motor learning on the limitation of shoulder abduction has not been demonstrated at all, quite the contrary.All participants had different prosthetic settings. It would be interesting to impose the same setting on all participants and to evaluate different setting combinations to better understand the influence of settings on compensatory movements.The kinematic study focused on the shoulder, although other joints are involved in the overall compensatory strategy.The data interpretation following short BBT sessions must be nuanced: the BBT, although convenient and easy to implement, is not extrapolable to daily living situations and a full working day.Our study focused on shoulder kinematics. Future research could complete this work by studying trunk, elbow and head kinematics in a multiplane approach, to better describe global compensatory strategies.