Nurse Cameron A, Lewis Cara L, Shefelbine Sandra J
Department of Mechanical Engineering, Vanderbilt University, Nashville, TN, 37215, USA.
Department of Physical Therapy, Boston University, Boston, MA, 02215, MA, USA.
Phys Ther Sport. 2023 Nov;64:133-139. doi: 10.1016/j.ptsp.2023.10.002. Epub 2023 Oct 20.
Hamstring injuries are the most prevalent non-contact soft tissue injury in sports, with a larger portion of injuries being recurrent. The sagittal plane running kinematics correlated to hamstring injury history has been well documented. However, analysis of frontal plane kinematics allows for observation of stability and symmetry. This study aimed to examine the frontal plane running kinematics of elite collegiate level sprinters, with and without previous hamstring injury, compared to healthy counterparts.
Thirty-nine participants performed three 50-m sprints, with three inertial measurement unit sensors placed on the pelvis: one on each iliac crest and one on the sacrum. Participants were classified based on sex, competitive status, and injury history. To investigate differences based on group classification, the data were used to analyze mediolateral motion (relative magnitude of mediolateral acceleration) and asymmetry (difference in acceleration between right and left iliac crests) during each stance phase throughout the run.
Injured sprinters displayed significantly greater mediolateral motion and asymmetry during stances than healthy counterparts.
This study demonstrates that frontal plane running stance dynamics are different in athletes with previous hamstring injury than healthy athletes. These athletes may benefit from rehabilitation strategies targeting postural control and stability during dynamic tasks.
腘绳肌损伤是运动中最常见的非接触性软组织损伤，其中很大一部分损伤会复发。与腘绳肌损伤史相关的矢状面跑步运动学已有充分记录。然而，对额状面运动学的分析有助于观察稳定性和对称性。本研究旨在比较有和没有腘绳肌损伤史的精英大学水平短跑运动员与健康对照者的额状面跑步运动学。
39名参与者进行了三次50米短跑，在骨盆上放置了三个惯性测量单元传感器：一个在每个髂嵴上，一个在骶骨上。参与者根据性别、竞技状态和损伤史进行分类。为了研究基于组分类的差异，数据被用于分析整个跑步过程中每个站立阶段的内外侧运动（内外侧加速度的相对大小）和不对称性（左右髂嵴之间的加速度差异）。
与健康对照者相比，受伤的短跑运动员在站立时表现出明显更大的内外侧运动和不对称性。
本研究表明，有过腘绳肌损伤的运动员与健康运动员相比，其额状面跑步站立动态有所不同。这些运动员可能会从针对动态任务中姿势控制和稳定性的康复策略中受益。
