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Title: | 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 | Authors: | AGTEN, Anouk VERBRUGGHE, Jonas STEVENS, Sjoerd OP 'T EIJNDE, Bert TIMMERMANS, Annick VANDENABEELE, Frank |
Issue Date: | 2021 | Publisher: | MDPI | Source: | Applied Sciences, 11(8), (Art N° 3306). | 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 | Document URI: | http://hdl.handle.net/1942/33899 | e-ISSN: | 2076-3417 | DOI: | 10.3390/app11083306 | ISI #: | WOS:000643959600001 | Rights: | 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2022 |
Appears in Collections: | Research publications |
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File | Description | Size | Format | |
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applsci-11-03306.pdf | Published version | 1.29 MB | Adobe PDF | View/Open |
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