Statistical analysis
mean shoulder abduction
Quantitative data were reported as the mean (Standard Deviation). We performed mixed-design analyses of variance (ANOVA) with “Group” (Axon-Hook then Greifer, or Greifer then Axon-Hook) as the between-participant factor and the “Hand” (Axon-Hook, Greifer or Non-Amputated side) as the within-participant factor. When one factor was statistically significant, and when the interaction between “Group” and “Hand” was statistically significant for a given variable, size effects was reported as the partial eta 2 (A post-hoc analysis was performed to assess the association between participants’ chosen wrist adjustment and mean shoulder abduction during BBT by calculating the Spearman correlation coefficient and The analysis was planned on the intention to treat population. P-value less than 0.05 were considered statistically significant.