Fig. 5

Linear regression plots of angular rotation values compared between the right and left upper extremities. Values showed a strong positive correlation in all angles (scapulothoracic joint: upward rotation ρ = 0.743, P < 0.001; internal rotation ρ = 0.553, P < 0.001; anterior tilt ρ = 0.740, P < 0.001; glenohumeral joint: abduction ρ = 0.700, P < 0.001; internal rotation ρ = 0.595; P < 0.001; extension ρ = 0.641, P < 0.001. elbow joint: valgus ρ = 0.736, P < 0.001; pronation ρ = 0.702, P < 0.001; and flexion ρ = 0.623, P < 0.001)