Abstract：
BACKGROUND:Exercise of the spinal muscles is recommended for a variety of rehabilitative reasons but it is not always clear whether interventions are effective in improving the performance of the muscles or whether their benefit is elicited via other mechanisms. OBJECTIVE:To explore the effects of an exercise intervention on the size and exercise performance of the lumbar spine extensor muscles. METHODS:Eleven healthy participants undertook a four week programme of exercise. Magnetic resonance imaging and phosphorus spectroscopy were performed before and after the intervention to determine the time to fatigue and phosphocreatine (PCr) depletion during a muscle endurance test (modified Biering-Sørensen) together with muscle cross-sectional area (CSA). RESULTS:The post intervention measures were significantly different to the pre-intervention results for the time to fatigue (post-pre: 20.5 ± 22.7 s (P= 0.014)) and PCr depletion both at the point of fatigue (post-pre: 9.5 ± 11.9% (P= 0.024)) and at a matched time-point (post-pre: 12.2 ± 11.9% (P= 0.007)). CSA was not significantly different in any muscle. CONCLUSIONS:Exercise improved the performance of the trunk muscles despite no impact on CSA. This demonstrated the importance of obtaining a wide range of measures when assessing the effectiveness of exercise intervention programmes.
journal_name
J Back Musculoskelet Rehabiljournal_title
Journal of back and musculoskeletal rehabilitationauthors
Fulford J,Juroskova V,Meakin JR,Barker ARdoi
10.3233/BMR-150337subject
Has Abstractpub_date
2017-08-03 00:00:00pages
717-724issue
4eissn
1053-8127issn
1878-6324pii
BMR150337journal_volume
30pub_type
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journal_title：Journal of back and musculoskeletal rehabilitation
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journal_title：Journal of back and musculoskeletal rehabilitation
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journal_title：Journal of back and musculoskeletal rehabilitation
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pub_type： 杂志文章
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journal_title：Journal of back and musculoskeletal rehabilitation
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journal_title：Journal of back and musculoskeletal rehabilitation
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journal_title：Journal of back and musculoskeletal rehabilitation
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pub_type： 杂志文章,随机对照试验
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更新日期：2017-01-01 00:00:00
