Alrashdi Naif Z, Aguiar Elroy J, White Collin E, Saunders Anna K, Momaya Amit M, Emblom Benton A, Ryan Michael K, Motl Robert W, Ithurburn Matthew P
Department of Physical Therapy and Health Rehabilitation, College of Applied Medical Sciences, Majmaah University, Majmaah, Saudi Arabia.
Department of Kinesiology, University of Alabama, Tuscaloosa.
J Athl Train. 2024 Oct 1;59(10):1004-1011. doi: 10.4085/1062-6050-0322.23.
Femoroacetabular impingement syndrome (FAIS) causes pain and functional limitations. Little is known regarding walking characteristics, volume, and intensity evaluated in laboratory and free-living conditions and whether these measures differ between those with FAIS and uninjured individuals.
To examine the differences in laboratory gait measures and free-living step-based metrics between individuals with FAIS and uninjured control participants.
Comparative, cross-sectional study.
We enrolled 25 participants with FAIS and 14 uninjured controls.
MAIN OUTCOME MEASURE(S): We evaluated laboratory spatiotemporal gait measures (cadence, velocity, step length, stride length) during self-selected and fast walking speeds using an instrumented walkway. Participants then wore an accelerometer around the waist during waking hours for 7 consecutive days. Free-living step-based metrics included average daily steps, peak 1- and 30-minute cadence, and average daily time spent in walking cadence bands. We compared laboratory gait measures and step-based metrics between groups.
The groups did not differ in laboratory spatiotemporal gait measures during both speeds (all P > .05). The FAIS group took fewer daily steps (5346 ± 2141 versus 7338 ± 2787 steps/d; P = .030) and had lower peak 1-minute (92.9 ± 23.9 versus 119.6 ± 16.3 steps/min; P < .001) and 30-minute cadences (60.9 ± 27.1 versus 86.8 ± 22.4 steps/min; P = .003) compared with uninjured controls, respectively. The FAIS group also spent less time in slow (6.0 ± 3.6 versus 10.3 ± 3.4 min/d; P = .001), medium (4.5 ± 4.2 versus 8.9 ± 4.4 min/d; P = .005), and brisk/moderate (4.5 ± 6.2 versus 12.2 ± 10.3; P = .020) cadence bands compared with uninjured controls.
Clinical/laboratory gait measures alone may not be representative of real-world walking-related physical activity behavior in individuals with FAIS.
股骨髋臼撞击综合征（FAIS）会导致疼痛和功能受限。关于在实验室和自由生活条件下评估的步行特征、步数和强度，以及这些指标在FAIS患者和未受伤个体之间是否存在差异，目前知之甚少。
研究FAIS患者与未受伤对照参与者在实验室步态测量和基于自由生活步数的指标方面的差异。
比较性横断面研究。
我们招募了25名FAIS患者和14名未受伤的对照者。
我们使用仪器化步道评估了自我选择速度和快速步行速度下的实验室时空步态测量指标（步频、速度、步长、步幅）。参与者随后在清醒时间连续7天佩戴腰部加速度计。基于自由生活步数的指标包括平均每日步数、1分钟和30分钟的峰值步频，以及在步行步频区间内花费的平均每日时间。我们比较了两组之间的实验室步态测量指标和基于步数的指标。
两组在两种速度下的实验室时空步态测量指标上没有差异（所有P>.05）。与未受伤对照者相比，FAIS组的每日步数较少（分别为5346±2141步/天和7338±2787步/天；P=.030），1分钟的峰值步频较低（分别为92.9±23.9步/分钟和119.6±16.3步/分钟；P<.001），30分钟的步频也较低（分别为60.9±27.1步/分钟和86.8±22.4步/分钟；P=.003）。与未受伤对照者相比，FAIS组在慢步频（分别为6.0±3.6分钟/天和10.3±3.4分钟/天；P=.001）、中等步频（分别为4.5±4.2分钟/天和8.9±4.4分钟/天；P=.005）和轻快/适度步频区间（分别为4.5±6.2分钟和12.2±10.3分钟；P=.020）花费的时间也较少。
仅临床/实验室步态测量指标可能无法代表FAIS患者在现实世界中与步行相关的身体活动行为。
