头部屈伸角度对正常青年人静态坐位平衡的影响

摘要

目的 探索头部不同屈伸角度对正常青年人静态坐位平衡功能的影响,获得使静态坐位平衡功能最好和最差的头部屈伸角度.方法 选取34名健康在校大学生.受试者闭目,分别取头部中立位、前屈15°、前屈30°、前屈45°、后伸15°、后伸30°,测重心移动轨迹长度.结果 重心移动轨迹长度的平均值由小到大依次为:前屈30°、中立位、前屈15°、前屈45°、后伸15°、后伸30°；其中头部前屈30°、中立位、前屈15°时的重心移动轨迹长度均值之间无显著性差异.结论 正常青年静态坐位平衡,以头部中立位-前屈30°之间最稳定,头部后伸30°时最差.%Objective To investigate the effect of different head flexion/extension angles on static sitting balance in normal youth. Methods 34 selected healthy college students were measured with the track length of the centre of gravity under eyes closed, head in a neutral position, flexed in 15°, 30°, 45°, and extended in 15°, 30° (30 s each position). Results the average length from small to big were: head flexed in 30°, neutral position, flexed in 15°, flexed in 45°, extended in 15°, extended in 30°. There was no significant difference among the average length when head flexed in 30°, in neutral position and flexed in 15° (P>0.05). Conclusion The static sitting balance is the most when head put in neutral position to flexed in 30°, and worst in extended in 30° in healthy youth.