Gail Holmes Equine Orthopaedic Research Center, Colorado State University, Fort Collins, CO; College of Veterinary Medicine and Biomedical Sciences, Department of Clinical Sciences, Colorado State University, Fort Collins, CO.
Gail Holmes Equine Orthopaedic Research Center, Colorado State University, Fort Collins, CO; College of Veterinary Medicine and Biomedical Sciences, Department of Clinical Sciences, Colorado State University, Fort Collins, CO.
J Equine Vet Sci. 2020 Aug;91:103108. doi: 10.1016/j.jevs.2020.103108. Epub 2020 Apr 25.
Postural stability maintains balance, protects the spinal column, and allows accurate responses to destabilizing forces. The musculus multifidus (m. multifidus) is the major postural muscle located adjacent to the vertebrae along the length of the spinal column. Increased cross-sectional area (CSA) of the m. multifidus has been demonstrated in horses after a rehabilitation strengthening exercise program; however, correlation with functional postural stability has not been shown. The objective of the present study is to evaluate the relationship of the thoracolumbar m. multifidus CSA and measures of postural sway performance in lame horses undergoing rehabilitation exercises in clinical cases. Seven client-owned horses admitted to the equine rehabilitation service were included in the study. M. multifidus CSA was measured via ultrasonography at the start of a rehabilitation program (initial evaluation) and after 12 weeks of rehabilitation exercises (final evaluation). Postural sway data were also measured at initial and final evaluation. A significant increase in m. multifidus CSA was seen from initial to final evaluation. A moderate to strong correlation was present between m. multifidus CSA and postural sway variables. These results suggest that there is an association between postural stability and m. multifidus hypertrophy in lame horses undergoing individualized rehabilitation programs. However, more research is needed to provide a definitive answer on the nature of this relationship. Ideally, specific performance tests would better define and examine the relationship in which to guide clinicians in rehabilitation protocol development.
姿势稳定性维持平衡，保护脊柱，并允许对不稳定力做出准确的反应。多裂肌（m. multifidus）是主要的姿势肌，位于脊柱沿脊柱长度的相邻位置。在接受康复强化锻炼计划后，马的多裂肌横截面积（CSA）增加已经得到证实；然而，与功能姿势稳定性的相关性尚未得到证实。本研究的目的是评估在临床病例中接受康复锻炼的跛行马的胸腰段多裂肌 CSA 与姿势摆动性能测量之间的关系。本研究纳入了 7 匹被纳入马康复服务的客户所有的马。在康复计划开始时（初始评估）和 12 周的康复锻炼后（最终评估），通过超声测量多裂肌 CSA。在初始和最终评估时也测量了姿势摆动数据。从初始评估到最终评估，多裂肌 CSA 显著增加。多裂肌 CSA 与姿势摆动变量之间存在中度至强相关性。这些结果表明，在接受个体化康复计划的跛行马中，姿势稳定性与多裂肌肥大之间存在关联。然而，需要更多的研究来提供对这种关系本质的明确答案。理想情况下，特定的性能测试可以更好地定义和检查关系，以指导临床医生制定康复方案。
