From the Department of Physical Therapy and Health Rehabilitation, College of Applied Medical Sciences, Majmaah University, Majmaah, Kingdom of Saudi Arabia.
Neurosciences (Riyadh). 2023 Jul;28(3):165-169. doi: 10.17712/nsj.2023.3.20220140.
To assesse the characteristics and validity of the Functional Gait Assessment (FGA). Concussion is a frequent brain injury that affect cognition, balance, and mobility. Prediction of the course of recovery after concussion could be achieved using a multidimensional examination. The FGA has been used to assess balance of individuals with concussion.
A prospective cross-sectional study was commenced between 2015-2020 in Pittsburgh, PA, USA, including 27 high schoolers with current complaints of concussion and 86 healthy controls. Participants in both groups provided demographics and completed FGA, Gait Disorientation Test (GDT), and Gait Speed (GS) tests.
The FGA test correlated significantly with the GS and GDT. The FGA score in adolescents with concussion was significantly lower than healthy controls (U=1574.5, =0.004). An FGA score less than 27 indicated a positive concussion injury with a sensitivity of 0.33 and a specificity of 0.92. The FGA showed a diagnostic odds ratio of 5.64. The positive and the negative likelihood ratios were of 3.03 and 0.54, respectively. For adolescents with concussion, the FGA showed no floor effect; however, a small ceiling effect (11.1%) was observed.
The FGA was valid and feasible to assess concussion injuries. It should be noted that a full score on the FGA should not be interpreted as full recovery from a concussion injury.
评估功能性步态评估（FGA）的特征和有效性。脑震荡是一种常见的脑损伤，会影响认知、平衡和活动能力。通过多维检查可以预测脑震荡后的恢复过程。FGA 已用于评估脑震荡患者的平衡能力。
2015 年至 2020 年期间，在美国宾夕法尼亚州匹兹堡进行了一项前瞻性横断面研究，共纳入 27 名有当前脑震荡症状的高中生和 86 名健康对照者。两组参与者均提供人口统计学资料，并完成 FGA、步态定向测试（GDT）和步态速度（GS）测试。
FGA 测试与 GS 和 GDT 显著相关。脑震荡青少年的 FGA 评分明显低于健康对照组（U=1574.5，p=0.004）。FGA 评分低于 27 分提示有阳性脑震荡损伤，其灵敏度为 0.33，特异性为 0.92。FGA 的诊断优势比为 5.64。阳性和阴性似然比分别为 3.03 和 0.54。对于脑震荡青少年，FGA 无地板效应；但观察到轻微的天花板效应（11.1%）。
FGA 可有效评估脑震荡损伤，具有有效性和可行性。需要注意的是，FGA 得满分不应解释为完全从脑震荡损伤中恢复。
