Caccese Jaclyn B, Buckley Thomas A, Kaminski Thomas W
Department of Kinesiology and Applied Physiology and the Biomechanics and Movement Science Interdisciplinary Program, University of Delaware, Newark, DE.
J Appl Biomech. 2016 Aug;32(4):329-34. doi: 10.1123/jab.2015-0273. Epub 2016 Mar 8.
The Balance Error Scoring System (BESS) is often used for sport-related concussion balance assessment. However, moderate intratester and intertester reliability may cause low initial sensitivity, suggesting that a more objective balance assessment method is needed. The MobileMat BESS was designed for objective BESS scoring, but the outcome measures must be validated with reliable balance measures. Thus, the purpose of this investigation was to compare MobileMat BESS scores to linear and nonlinear measures of balance. Eighty-eight healthy collegiate student-athletes (age: 20.0 ± 1.4 y, height: 177.7 ± 10.7 cm, mass: 74.8 ± 13.7 kg) completed the MobileMat BESS. MobileMat BESS scores were compared with 95% area, sway velocity, approximate entropy, and sample entropy. MobileMat BESS scores were significantly correlated with 95% area for single-leg (r = .332) and tandem firm (r = .474), and double-leg foam (r = .660); and with sway velocity for single-leg (r = .406) and tandem firm (r = .601), and double-leg (r = .575) and single-leg foam (r = .434). MobileMat BESS scores were not correlated with approximate or sample entropy. MobileMat BESS scores were low to moderately correlated with linear measures, suggesting the ability to identify changes in the center of mass-center of pressure relationship, but not higher-order processing associated with nonlinear measures. These results suggest that the MobileMat BESS may be a clinically-useful tool that provides objective linear balance measures.
平衡误差评分系统（BESS）常用于与运动相关的脑震荡平衡评估。然而，测试者内部和测试者之间的可靠性一般，可能导致初始敏感性较低，这表明需要一种更客观的平衡评估方法。移动垫BESS旨在实现BESS的客观评分，但结果指标必须通过可靠的平衡测量方法进行验证。因此，本研究的目的是比较移动垫BESS评分与平衡的线性和非线性测量指标。88名健康的大学生运动员（年龄：20.0±1.4岁，身高：177.7±10.7厘米，体重：74.8±13.7千克）完成了移动垫BESS测试。将移动垫BESS评分与95%面积、摇摆速度、近似熵和样本熵进行比较。移动垫BESS评分与单腿（r = 0.332）、串联稳定（r = 0.474）和双腿泡沫（r = 0.660）状态下的95%面积显著相关；与单腿（r = 0.406）、串联稳定（r = 0.601）、双腿（r = 0.575）和单腿泡沫（r = 0.434）状态下的摇摆速度显著相关。移动垫BESS评分与近似熵或样本熵无关。移动垫BESS评分与线性测量指标呈低到中度相关，表明其能够识别质心与压力中心关系的变化，但与非线性测量指标相关的高阶处理无关。这些结果表明，移动垫BESS可能是一种临床有用的工具，可提供客观的线性平衡测量指标。
