Department of Rehabilitation Sciences, College of Health and Rehabilitation Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia.
Medicina (Kaunas). 2022 Dec 30;59(1):85. doi: 10.3390/medicina59010085.
Background and Objective: The risk factors for injury due to alterations in gait efficiency and fatigability during walking are a rising concern. Therefore, the aims of this study were to characterize the changes in gait pattern and performance fatigability among adult women with a high body fat percentage and to study the association between the gait pattern and performance fatigability during walking. Materials and Methods: A total of 160 adult women were enrolled in the study and were divided into two groups: a high-body-fat percentage group (HBF; n = 80; fat% = 42.49 ± 3.51) and a comparison group with a normal body fat percentage (NBF; n = 80; fat% = 29.68 ± 4.30). The 10 min walking test (10-MWT) was used to measure performance fatigability. Treadmill-based gait analysis was used for the acquisition of gait parameters. The correlation between the variables was examined using Pearson’s correlation coefficient. Forward stepwise linear regression was carried out to examine the association between all independent variables, and performance fatigability was adjusted for age and height. The level of statistical significant was set at p-value < 0.05 in all analyses. Results: The mean performance fatigability during the 10-MWT was reported to be high (1.4 ± 0.13) among the participants with HBF, as compared with a fatigability of 1.25 ± 0.11 in the NBF group. The data analysis of the spatial parameters indicated that stride length and step length were statistically smaller in the participants with HBF, as compared with the NBF group. The effects of average maximum force, speed, cadence, step length, and stride length explained the variation in the performance fatigability by 61% (p = 0.007). Conclusion: The findings of this study showed that gait alteration due to excess body fat induced a reduction in performance, as reflected by the high fatigability performance during walking. The study demonstrated a significant association between the severity of performance fatigability and spatial gait parameters.
行走过程中步态效率和疲劳性改变导致损伤的风险因素日益受到关注。因此，本研究旨在描述高体脂百分比成年女性的步态模式变化和行走时的运动疲劳性，并研究行走时步态模式与运动疲劳性之间的相关性。
本研究共纳入 160 名成年女性，分为高体脂百分比组（HBF；n = 80；体脂百分比=42.49±3.51）和体脂百分比正常组（NBF；n = 80；体脂百分比=29.68±4.30）。10 分钟步行测试（10-MWT）用于测量运动疲劳性。跑步机步态分析用于采集步态参数。使用 Pearson 相关系数检验变量之间的相关性。进行逐步向前线性回归分析，以检验所有自变量与运动疲劳性之间的相关性，并对年龄和身高进行调整。所有分析的统计显著性水平均设为 p 值<0.05。
与 NBF 组（1.25±0.11）相比，HBF 组参与者的 10-MWT 运动疲劳性较高（1.4±0.13）。空间参数数据分析表明，与 NBF 组相比，HBF 组的步长和步幅明显较小。平均最大力、速度、步频、步长和步幅的综合效应解释了 61%的运动疲劳性变化（p=0.007）。
本研究结果表明，由于体脂过多导致的步态改变会降低运动表现，表现为行走时的高疲劳性。研究表明，运动疲劳性的严重程度与空间步态参数之间存在显著相关性。
