Figure 1From: Biomechanical and functional indicators in male semiprofessional soccer players with increased hip alpha angles vs. amateur soccer players Axial MRI scan of the right hip of a participant of the soccer group. The alpha angle is formed by the connecting lines (yellow lines) between the longitudinal mid-axis of the femoral neck and the axis which marked the point first exceeded the radius of the cartilage-covered femoral head. The alpha angle was 76.8° in this example.Back to article page