Naserpour Mehdi, Goharpey Shahin, Saki Amal, Mohammadi Zeinab
Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences: Golestan St., Ahvaz 6135733133, Iran.
Department of Biostatistics and Epidemiology School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Iran.
J Phys Ther Sci. 2018 Oct;30(10):1289-1292. doi: 10.1589/jpts.30.1289. Epub 2018 Oct 12.
[Purpose] This study aimed to examine the differences in dynamic postural control during forward step down (FSD) task in patients with patellofemoral pain syndrome (PFPS). [Participants and Methods] Sixty-eight participants (34 males and 34 females) were divided into the following 2 groups: 34 PFPS patients (17 males and 17 females) and 34 healthy controls (17 males and 17 females). Each participant performed FSD task from a height of 20 cm. A force platform was used to extract the center of pressure parameters during FSD task for calculation of time to stabilization (TTS) in the anterior-posterior (A/P) and medial-lateral (M/L) direction. [Results] PFPS group took longer time to stabilize than the healthy control group in A/P and M/L directions. A main effect for direction was found, and this indicated that the A/P TTS of 8.43 ± 0.79s was longer than the M/L TTS of 5.56 ± 1.95s in healthy participants and A/P TTS of 9.09 ± 0.82s was longer than the M/L TTS of 7.15 ± 2.11s in PFPS. [Conclusion] These findings suggest that dynamic postural control can be affected in PFPS patients.
[目的] 本研究旨在探讨髌股疼痛综合征（PFPS）患者在向前下台阶（FSD）任务中动态姿势控制的差异。[参与者与方法] 68名参与者（34名男性和34名女性）被分为以下两组：34名PFPS患者（17名男性和17名女性）和34名健康对照者（17名男性和17名女性）。每位参与者从20厘米的高度进行FSD任务。使用测力平台在FSD任务期间提取压力中心参数，以计算前后（A/P）和内外侧（M/L）方向的稳定时间（TTS）。[结果] PFPS组在A/P和M/L方向上比健康对照组花费更长时间来稳定。发现了方向的主效应，这表明健康参与者的A/P TTS为8.43±0.79秒，长于M/L TTS的5.56±1.95秒；PFPS患者的A/P TTS为9.09±0.82秒，长于M/L TTS的7.15±2.11秒。[结论] 这些发现表明PFPS患者的动态姿势控制可能受到影响。
