Multifidus muscle cross-sectional area adaptations over two volleyball seasons and one off-season in athletes with and without low back pain
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Published:2022-09-02
Issue:5
Volume:35
Page:1135-1142
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ISSN:1878-6324
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Container-title:Journal of Back and Musculoskeletal Rehabilitation
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language:
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Short-container-title:BMR
Author:
Sponbeck J.K.,Moody M.A.,Mitchell U.H.,Neves C.D.,Johnson A.W.
Abstract
BACKGROUND: The multifidus muscle is important in spine stabilization. Atrophy of the multifidus muscle has been associated with low back pain. OBJECTIVE: To examine multifidus muscle cross-sectional area (CSA) adaptations over two volleyball seasons and one off-season in volleyball athletes experiencing low back pain or no low back pain. METHODS: Twelve female NCAA division 1 volleyball athletes participated. Athletes were placed into a low back pain or no low back pain group. Athlete’s multifidus was imaged and measured using ultrasound at four time points across seasons. Imaging time points were before season one, following season one, following off-season, and following season two. A single level mixed-model analysis of variance was used for all analyses. A Tukey HSD post hoc test was used to determine differences between and within the low back pain and the no low back pain groups. RESULTS: Following off-season training the pain group had clinically significant smaller multifidus CSA at the L4 (-2.36 cm2 difference or 17.5%) and L5 (-2.40 cm2 or 12.5%) levels. Non-significant (p> 0.05) decreases in multifidus CSA were seen in both groups following season one and two. Athletes with pain had decreased multifidus CSA at the L4 and L5 vertebral levels at all time points which was non-significant (p> 0.05). CONCLUSIONS: Clinically significant decreases in multifidus CSA occurred in female volleyball athletes with low back pain at the L4 and L5 level following off-season training. Volleyball athletes with pain had smaller multifidus CSA averages at all time points measured of the two year period.
Subject
Rehabilitation,Physical Therapy, Sports Therapy and Rehabilitation,Orthopedics and Sports Medicine
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