Strength measures. Box-plots for elbow flexion (a) and extension (b), and forearm supination (c) and pronation (d) voluntary peak torque in Newtonmeter (Nm), and grip force (e) in Newton (N). Baseline Post 2 months Post 5 months measures’ with Baseline (solid/dark grey) Post 2 months (striped grey) Post 5 months (dotted/light grey) measures for group B (receiving Botulinum Toxin-A) and group BT (receiving Botulinum Toxin-A + 8 weeks of resistance training). Boxes are inter-quartile ranges, the solid horizontal line is the median, whisker bars are the extreme values. Outliers are shown as circles. Significant group differences in treatment effect are indicated.