The purpose of this study was to examine the variability and coordination of postural adaptations in normal weight children and those with overweight in running and hopping. Fifty-six boys between 7 and 10 years were classified into groups as overweight (n = 33) or normal-weight (n = 23). They performed two trials of running and hopping over a 20-m straight line distance. Accelerometers were attached on the trunk and head for collecting body movements in different directions from 15 strides. Postural variability and coordination were calculated by multiscale entropy and cross approximate entropy for the running and hopping trials, separately. Findings highlight overweight boys had significantly higher trunk-head coordination in mediolateral direction than normal-weight boys (0.72 vs. 0.68). The hopping movement pattern had highest variability (9.88 vs. 8.77) and trunk–head coordination (0.61 vs. 0.67) than running. Excess body mass demands additional postural adaptations to compensate for reducing the risk of losing balance laterally in boys with overweight.

本研究的目的是检查体重正常儿童和超重儿童在跑步和跳跃时姿势适应的可变性和协调性。56 名 7 至 10 岁的男孩被分为超重 ( n  = 33) 或正常体重 ( n = 23）。他们进行了两次跑步和跳跃超过 20 米直线距离的试验。加速度计安装在躯干和头部，用于收集 15 步不同方向的身体运动。姿势变异性和协调性分别通过多尺度熵和交叉近似熵来计算，用于跑步和跳跃试验。结果表明，超重男孩的躯干-头部在内侧方向上的协调性明显高于正常体重男孩（0.72 对 0.68）。与跑步相比，跳跃运动模式具有最高的可变性（9.88 对 8.77）和躯干-头部协调（0.61 对 0.67）。超重的体重需要额外的姿势适应来补偿降低超重男孩横向失去平衡的风险。