Figure 2

The scores for each question of Q1-1 and Q1-2 (neck extension), Q1-3 (neck rotation), and Q1-4 (neck flexion). The score of Q1-3 was significantly lower than that of the other questions. *p < 0.05.

The scores for each question of Q1-1 and Q1-2 (neck extension), Q1-3 (neck rotation), and Q1-4 (neck flexion). The score of Q1-3 was significantly lower than that of the other questions. *p < 0.05.