Movahed Marzieh, Salavati Mahyar, Sheikhhoseini Rahman, Arab Amir Massoud, O'Sullivan Kieran
University of Social Welfare and Rehabilitation Sciences, Department of Physiotherapy, Tehran, Iran.
Department of Physical Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
J Bodyw Mov Ther. 2019 Oct;23(4):924-929. doi: 10.1016/j.jbmt.2019.01.012. Epub 2019 Jan 30.
The purpose of this study was to compare kinematics of the lower extremity and lumbar spine during a single leg landing task between female volleyball athletes with and without persistent low back pain (LBP).
In this cross sectional study, 36 volunteer female volleyball athletes with (n = 18) and without (n = 18) LBP were recruited. Two specifically trained physical therapists selected only athletes with a specific movement-based subgroup of LBP for inclusion. Three dimensional kinematic and ground reaction force data were recorded for each athlete across three single leg landing trials by utilizing a Vicon 6-camera motion capture system and one in-floor embedded Kistler force plate, respectively. Independent t-tests compared data between the two groups.
Lumbar lordosis when standing (p = 0.046) as well as on initial contact (p = 0.025) and at the time which the maximal vertical ground reaction force occurred (p = 0.020) were significantly greater in the LBP group. There were no other significant differences.
The tendency for this specific subgroup of athletes to consistently adopt more extended lumbar postures in both static and dynamic tasks may be worth considering by those involved in coaching, performance optimizing and injury prevention.
本研究旨在比较患有和未患有持续性下腰痛（LBP）的女排运动员在单腿落地任务期间下肢和腰椎的运动学情况。
在这项横断面研究中，招募了36名志愿者女排运动员，其中18名患有LBP，18名未患有LBP。两名经过专门培训的物理治疗师仅选择具有特定基于运动的LBP亚组的运动员纳入研究。分别利用Vicon 6摄像头运动捕捉系统和一块地面嵌入式奇石乐测力板，为每位运动员在三次单腿落地试验中记录三维运动学和地面反作用力数据。独立t检验比较两组之间的数据。
LBP组站立时（p = 0.046）以及初始接触时（p = 0.025）和最大垂直地面反作用力出现时（p = 0.020）的腰椎前凸明显更大。没有其他显著差异。
参与教练指导、性能优化和预防损伤的人员可能值得考虑这一特定亚组运动员在静态和动态任务中始终采用更伸展腰椎姿势的倾向。
