Shim Andrew, Harr Brady, Waller Mike
Professor and Program Director of the Department of Kinesiology & Exercise Science at the College of Saint Mary in Omaha, NE.
Doctor of Physical Therapy Student at Briar Cliff University in Sioux City, IA.
Perm J. 2018;22:17-096. doi: 10.7812/TPP/17-096.
Falls are the second-leading cause of unintentional injury and death worldwide.
To determine if a relationship exists between lower body power scores and center of pressure (CoP) and limits of stability (LoS) scores.
A one-shot case study design (n = 13) was selected for the investigation. All participants were assessed stability scores via computerized posturography to determine CoP and LoS balance scores. Participants stood on a perturbed surface with their eyes open and closed. An experimental stair ramp with a switch mat timing device was used to determine lower body power scores in watts.
There was a strong correlation (r = 0.725, p = 0.005) between the posterior (LoS) plane and relative peak power. An intraclass R revealed a strong correlation among the three trials (R = 0.831) performed on the stair ramp.
Muscle power output and LoS scores have moderate to strong correlations with balance scores in older adults.
跌倒是全球非故意伤害和死亡的第二大原因。
确定下肢力量得分与压力中心（CoP）和稳定极限（LoS）得分之间是否存在关联。
本研究采用一次性案例研究设计（n = 13）。所有参与者均通过计算机化姿势描记法评估稳定性得分，以确定CoP和LoS平衡得分。参与者分别在睁眼和闭眼状态下站在一个受干扰的表面上。使用带有开关垫计时装置的实验性楼梯坡道来确定以瓦特为单位的下肢力量得分。
在后部（LoS）平面与相对峰值功率之间存在强相关性（r = 0.725，p = 0.005）。组内相关系数R显示在楼梯坡道上进行的三次试验之间存在强相关性（R = 0.831）。
在老年人中，肌肉力量输出和LoS得分与平衡得分具有中度至强相关性。
