Objective  To explore the influence of somatosensory and visual sense on balance control ability of freestyle skiing aerial athletes.

  Methods  Using the Balance Disc and Finland Metitur Postural Balance Measuring System, 20 athletes(10 males and 10 females)were tested for anti-interference of balance control ability; the lateral stability V_x, the front and back stability V_y of the human body pressure center were selected as the test indicators. According to gender(male, female), standing pattern(left leg or right leg)and sensory conditions(4 kinds of conditions), the 3 factors, the three-way ANOVA(2×2×4)with repeated measures was used to test the influence of different factors on the difference of balance control abilities.

  Results  ① There was a significant difference in the main effect of each factor(P < 0.05), and a significant difference in the interaction between standing pattern and sensory condition(P < 0.05); ② All kinds of sensory conditions significantly reduced the ability of balance control(P < 0.01), with the reduction degree of closed eyes with balance disc > open eyes with balance disc > closed eyes > open eyes. ③ The somatosensory interference with side stability V_x interference was significantly higher than that of the front and back stability V_y (P < 0.01); ④ The somatosensory interference of the right leg was significantly greater than that of the left leg (P < 0.05). ⑤ Double sensory interference was significantly higher than that of single sensory interference(P < 0.01).

  Conclusion  The interference of somatosensory and vision seriously reduces the balance control ability of athletes, and the somatosensory is more serious.