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Volume 11
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10.3390/app11083306
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Article

High Intensity Training Increases Muscle Area Occupied by Type II Muscle Fibers of the Multifidus Muscle in Persons with Non-Specific Chronic Low Back Pain: A Pilot Trial

by
Anouk Agten
1,*,
Jonas Verbrugghe
1,
Sjoerd Stevens
1,
Bert O. Eijnde
2,
Annick Timmermans
1 and
Frank Vandenabeele
1
1
Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Hasselt University, Agoralaan Building A, 3590 Diepenbeek, Belgium
2
Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Agoralaan Building C, 3590 Diepenbeek, Belgium
*
Author to whom correspondence should be addressed.
Appl. Sci. 2021, 11(8), 3306; https://doi.org/10.3390/app11083306
Submission received: 14 March 2021 / Revised: 2 April 2021 / Accepted: 6 April 2021 / Published: 7 April 2021
(This article belongs to the Special Issue Musculoskeletal Rehabilitation)
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Abstract

Low back pain is a prevalent musculoskeletal disorder with high disability. Although exercise therapy is an important part of the multidisciplinary treatment of non-specific chronic low back pain (NSCLBP), the impact of exercise therapy on muscle morphology of the paraspinal muscles is largely unknown. The main aim of this study is to evaluate the effects of a high intensity training (HIT) program on muscle fiber characteristics of the multifidus (MF) and the erector spinae (ES) musculature in persons with NSCLBP and to compare these results with the effects of a moderate intensity training (MIT) program, which is used as a control group. In total, 38 participants with NSCLBP were randomly assigned to a HIT or MIT intervention group. Participants performed a 12-week training program. At baseline and after the training program, biopsy samples from the lumbar MF and ES were obtained. Muscle fiber characteristics were analyzed by immunofluorescence. For the ES, no significant changes were found in muscle fiber CSA and distribution of muscle fiber types in response to a training program at moderate or at high intensity. For the MF, a significant higher muscle area occupied by type II muscle fibers, referred to as the relative cross-sectional area (RCSA), was found in the HIT group. Based on muscle fiber characteristics in biopsy samples, a HIT program of 12 weeks seems to result in a more glycolytic profile in the MF.
Keywords: multifidus; erector spinae; low back pain; high intensity training; muscle biopsy; muscle fiber characteristics multifidus; erector spinae; low back pain; high intensity training; muscle biopsy; muscle fiber characteristics

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MDPI and ACS Style

Agten, A.; Verbrugghe, J.; Stevens, S.; Eijnde, B.O.; Timmermans, A.; Vandenabeele, F. High Intensity Training Increases Muscle Area Occupied by Type II Muscle Fibers of the Multifidus Muscle in Persons with Non-Specific Chronic Low Back Pain: A Pilot Trial. Appl. Sci. 2021, 11, 3306. https://doi.org/10.3390/app11083306

AMA Style

Agten A, Verbrugghe J, Stevens S, Eijnde BO, Timmermans A, Vandenabeele F. High Intensity Training Increases Muscle Area Occupied by Type II Muscle Fibers of the Multifidus Muscle in Persons with Non-Specific Chronic Low Back Pain: A Pilot Trial. Applied Sciences. 2021; 11(8):3306. https://doi.org/10.3390/app11083306

Chicago/Turabian Style

Agten, Anouk, Jonas Verbrugghe, Sjoerd Stevens, Bert O. Eijnde, Annick Timmermans, and Frank Vandenabeele. 2021. "High Intensity Training Increases Muscle Area Occupied by Type II Muscle Fibers of the Multifidus Muscle in Persons with Non-Specific Chronic Low Back Pain: A Pilot Trial" Applied Sciences 11, no. 8: 3306. https://doi.org/10.3390/app11083306

APA Style

Agten, A., Verbrugghe, J., Stevens, S., Eijnde, B. O., Timmermans, A., & Vandenabeele, F. (2021). High Intensity Training Increases Muscle Area Occupied by Type II Muscle Fibers of the Multifidus Muscle in Persons with Non-Specific Chronic Low Back Pain: A Pilot Trial. Applied Sciences, 11(8), 3306. https://doi.org/10.3390/app11083306

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