Background

Central processing of multi-sensory feedback and motor commands responsible for force production are critical for postural control. An exercise program was developed to realign spinal curvature, but its effect on postural control is unknown.

Research Question

To what extent would the exercise program influence on center of pressure (CoP) sway on stable and unstable surfaces?

Methods

Subjects (n = 30) were randomly assigned into one of three groups: exercise on a cylinder-shaped tube (98-cm length, 15-cm diameter, n = 10), exercise on a flat surface (n = 10), and a control group that laid supine on a flat surface (n = 10). Standing posture of each subject was quantified using anterior-, posterior-, and lateral-view photography. Each subject’s CoP sway was measured while standing on a static and dynamic platform with eyes open and eyes closed. Subjects were instructed to stand still when the platform was held stationary (e.g., no tilt) during the static condition. During the dynamic condition the platform was allowed to tilt in response to changes of CoP and subjects were instructed to maintain the platform in a horizontal position.

Results

Only when subjects performed the exercise program on the tube, the angles of neck flexion and pelvis tilt decreased, and CoP sway in the sagittal, but not frontal plane, decreased during the dynamic platform conditions with both eyes open and eyes closed (p < 0.05).

Significance

It is speculated that performing the exercise program on the tube might enhance a) central processing of somatosensory and vestibular inputs, b) motor commands responsible for force production in postural control, and c) biomechanical advantage by the realigned posture. The exercise program can be used by a variety of populations as home-exercise to realign the neck and pelvic posture and improve dynamic postural stability.

中文翻译：

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通过锻炼程序改善动态姿势稳定性。

背景

负责产生力的多传感器反馈和运动命令的中央处理对于姿势控制至关重要。开发了一个运动程序来重新排列脊柱弯曲，但是它对姿势控制的作用尚不清楚。

研究问题

锻炼计划对稳定和不稳定表面上的压力中心（CoP）摇摆有多大影响？

方法

受试者（n  = 30）被随机分为三组：在圆柱管上锻炼（长度为98 cm，直径为15 cm，n  = 10），在平面上锻炼（n  = 10），以及仰卧在平坦表面上的对照组（n = 10）。使用前视图，后视图和侧面摄影对每个受试者的站立姿势进行量化。站在静态和动态平台上，睁开眼睛，闭上眼睛，测量每个受试者的CoP摆动。在静止状态下，当平台保持静止（例如，无倾斜）时，指示受试者静止不动。在动态条件下，允许平台响应CoP的变化而倾斜，并指示受试者将平台保持在水平位置。

结果

仅当受试者在试管上执行运动程序时，在动态平台条件下（双眼睁开和闭眼），颈部屈曲角度和骨盆倾斜角度才会减小，矢状面（而不是额骨平面）的CoP摇摆会减小（p <0.05 ）。

意义

据推测，在管上执行锻炼程序可能会增强a）体感和前庭输入的中央处理，b）负责姿势控制中力产生的运动命令，以及c）姿势重新调整后的生物力学优势。该锻炼程序可以被各种人群用作家庭锻炼，以重新调整颈部和骨盆的姿势并改善动态姿势稳定性。