The three anatomical angles of the chest joint (flexion/extension, lateral flexion, and rotation about the long axis of the lower trunk) were expressed using the Euler angle. The angle displacement shows the sum of the maximum angles in both directions in each anatomical axis of the chest and hip joints. LW10-2/LW11 and LW12-2 skiers have significant differences in the amounts of joint angle displacement. In the case of the LW11 skier, large differences were observed between the right and left turns. |