Seventy-two patients with nonsurgically treated, displaced, 2-part proximal humerus fractures were randomized to receive either physiotherapist-supervised exercises once a week for 10 weeks (n=37) or unsupervised home-based exercises (n=35). The primary outcome of interest was the Disability of the Arm, Shoulder, and Hand (DASH) score at 3 months. Secondary outcomes included the DASH score at 12 months, Constant-Murley Score, 15D health-related quality of life instrument, Visual Analog Scale (VAS), General Self-Efficacy Scale (GSE), and the Pain Catastrophizing Scale (PCS), with assessments at 3 and 12 months. Overall, the study found no clinically significant differences between the supervised and unsupervised groups in primary or secondary outcomes. These findings suggest that supervised exercises do not provide added benefits compared to unsupervised home-based exercises for this patient population.