Effect of physical training on function of chronically painful muscles: a randomized controlled trial

被引:52
作者
Andersen, Lars L. [1 ]
Andersen, Christoffer H. [1 ]
Zebis, Mette K. [1 ]
Nielsen, Pernille K. [1 ]
Sogaard, Karen [2 ]
Sjogaard, Gisela [2 ]
机构
[1] Natl Res Ctr Working Environm, DK-2100 Copenhagen O, Denmark
[2] Univ So Denmark, Inst Sports Sci & Clin Biomech, Odense M, Denmark
基金
英国医学研究理事会;
关键词
isokinetic; isometric; torque; neck pain; trapezius myalgia;
D O I
10.1152/japplphysiol.91057.2008
中图分类号
Q4 [生理学];
学科分类号
071003 ;
摘要
Andersen LL, Andersen CH, Zebis MK, Nielsen PK, Sogaard K, Sjogaard G. Effect of physical training on function of chronically painful muscles: a randomized controlled trial. J Appl Physiol 105: 1796-1801, 2008. First published October 23, 2008; doi:10.1152/japplphysiol.91057.2008.-Pain and tenderness of the upper trapezius muscle is frequent in several occupational groups. The objective of this study is to investigate the effect of three contrasting interventions on muscle function and pain in women with trapezius myalgia. A group of employed women (n = 42) with a clinical diagnosis of trapezius myalgia participated in a 10-wk randomized controlled intervention: specific strength training of the neck/shoulder muscles, general fitness training performed as leg bicycling, or a reference intervention without physical activity. Torque and electromyography (EMG) were recorded during maximal shoulder abductions in an isokinetic dynamometer at -60, 60, 0, and 180 degrees/s. Furthermore, a submaximal reference contraction with only the load of the arms was performed. Significant changes were observed only in the specific strength training group. Pain decreased by 42-49% (P < 0.01-0.05). Whereas the EMG activity of the unaffected deltoid remained unchanged during the maximal contractions, an increase in EMG amplitude (42-86%; P < 0.001-0.05) and median power frequency (19%; P < 0.001) were observed for the painful trapezius muscle. Correspondingly, torque increased by 18-53% (P < 0.001-0.05). EMG during the reference contraction decreased significantly for both the trapezius and deltoid muscles (P < 0.01). In conclusion, specific strength training relieves pain and increases maximal activity specifically of the painful trapezius muscle, leading to increased shoulder abduction strength in women with trapezius myalgia. Furthermore, decreased relative workload may indirectly augment pain reduction.
引用
收藏
页码:1796 / 1801
页数:6
相关论文
共 41 条
[1]   Effects on physical performance and pain from three dynamic training programs for women with work-related trapezius myalgia [J].
Ahlgren, C ;
Waling, K ;
Kadi, F ;
Djupsjöbacka, M ;
Thornell, LE ;
Sundelin, G .
JOURNAL OF REHABILITATION MEDICINE, 2001, 33 (04) :162-169
[2]   Increased proportion of megafibers in chronically painful muscles [J].
Andersen, Lars L. ;
Suetta, Charlotte ;
Andersen, Jesper L. ;
Kjaer, Michael ;
Sjogaard, Gisela .
PAIN, 2008, 139 (03) :588-593
[3]   Torque-EMG-velocity relationship in female workers with chronic neck muscle pain [J].
Andersen, Lars L. ;
Nielsen, Pernille K. ;
Sogaard, Karen ;
Andersen, Christoffer H. ;
Skotte, Jorgen ;
Sjogaard, Gisela .
JOURNAL OF BIOMECHANICS, 2008, 41 (09) :2029-2035
[4]   Muscle activation during selected strength exercises in women with chronic neck muscle pain [J].
Andersen, Lars L. ;
Kjaer, Michael ;
Andersen, Christoffer H. ;
Hansen, Peter B. ;
Zebis, Mette K. ;
Hansen, Klaus ;
Sjogaard, Gisela .
PHYSICAL THERAPY, 2008, 88 (06) :703-711
[5]   A randomized controlled intervention trial to relieve and prevent neck/shoulder pain [J].
Andersen, Lars L. ;
Jorgensen, Marie B. ;
Blangsted, Anne Katrine ;
Pedersen, Mogens T. ;
Hansen, Ernst A. ;
Sjogaard, Gisela .
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE, 2008, 40 (06) :983-990
[6]   Effect of two contrasting types of physical exercise on chronic neck muscle pain [J].
Andersen, Lars L. ;
Kjaer, Michael ;
Sogaard, Karen ;
Hansen, Lone ;
Kryger, Ann I. ;
Sjogaard, Gisela .
ARTHRITIS & RHEUMATISM-ARTHRITIS CARE & RESEARCH, 2008, 59 (01) :84-91
[7]   Changes in the human muscle force-velocity relationship in response to resistance training and subsequent detraining [J].
Andersen, LL ;
Andersen, JL ;
Magnusson, SP ;
Suetta, C ;
Madsen, JL ;
Christensen, LR ;
Aagaard, P .
JOURNAL OF APPLIED PHYSIOLOGY, 2005, 99 (01) :87-94
[8]   Neuromuscular adaptations to detraining following resistance training in previously untrained subjects [J].
Andersen, LL ;
Andersen, JL ;
Magnusson, SP ;
Aagaard, P .
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY, 2005, 93 (5-6) :511-518
[9]  
Astrand PO., 1986, TXB WORK PHYSL
[10]   One-year randomized controlled trial with different physical-activity programs to reduce musculoskeletal symptoms in the neck and shoulders among office workers [J].
Blangsted, Anne Katrine ;
Sogaard, Karen ;
Hansen, Ernst A. ;
Hannerz, Harald ;
Sjogaard, Gisela .
SCANDINAVIAN JOURNAL OF WORK ENVIRONMENT & HEALTH, 2008, 34 (01) :55-65