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Muscle hypertrophy, strength development, and serum hormones during strength training in elderly women with fibromyalgia.
Scand J Rheumatol. 2005 Jul-Aug; 34(4):309-14.SJ

Abstract

OBJECTIVE

To examine the effects of strength training on maximal force, cross-sectional area (CSA), and electromyographic (EMG) activity of muscles and serum hormone concentrations in elderly females with fibromyalgia (FM).

METHODS

Twenty-six patients with FM were randomly assigned to a training (FMT; n = 13; mean age 60 years) or a control (FMC; n = 13; 59 years) group. FMT performed progressive strength training twice a week for 21 weeks. The measurements included maximal isometric and concentric leg extension forces, EMG activity of the vastus lateralis and medialis, CSA of the quadriceps femoris, and serum concentrations of testosterone (T), free testosterone (FT), growth hormone (GH), insulin-like growth factor-1 (IGF-1), dehydroepiandrosterone sulfate (DHEAS), and cortisol. Subjectively perceived symptoms of FM were also assessed.

RESULTS

All patients were able to complete the training. In FMT strength training led to increases of 36% (p<0.001) and 33% (p<0.001) in maximal isometric and concentric forces, respectively. The CSA increased by 5% (p<0.001) and the EMG activity in isometric action by 47% (p<0.001) and in concentric action by 57% (p<0.001). Basal serum hormone concentrations remained unaltered during strength training. The subjective perceived symptoms showed a minor decreasing tendency (ns). No statistically significant changes occurred in any of these parameters in FMC.

CONCLUSION

Progressive strength training increases strength, CSA, and voluntary activation of the trained muscles in elderly women with FM, while the measured basal serum hormone concentrations remain unaltered. Strength training benefits the overall physical fitness of the patients without adverse effects or any exacerbation of symptoms and should be included in the rehabilitation programmes of elderly patients with FM.

Authors+Show Affiliations

Department of Health Sciences, University of Jyväskylä, Jyväskylä, FIN-40 014, Finland. heli.valkeinen@sport.jyu.fiNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

16195165

Citation

Valkeinen, H, et al. "Muscle Hypertrophy, Strength Development, and Serum Hormones During Strength Training in Elderly Women With Fibromyalgia." Scandinavian Journal of Rheumatology, vol. 34, no. 4, 2005, pp. 309-14.
Valkeinen H, Häkkinen K, Pakarinen A, et al. Muscle hypertrophy, strength development, and serum hormones during strength training in elderly women with fibromyalgia. Scand J Rheumatol. 2005;34(4):309-14.
Valkeinen, H., Häkkinen, K., Pakarinen, A., Hannonen, P., Häkkinen, A., Airaksinen, O., Niemitukia, L., Kraemer, W. J., & Alén, M. (2005). Muscle hypertrophy, strength development, and serum hormones during strength training in elderly women with fibromyalgia. Scandinavian Journal of Rheumatology, 34(4), 309-14.
Valkeinen H, et al. Muscle Hypertrophy, Strength Development, and Serum Hormones During Strength Training in Elderly Women With Fibromyalgia. Scand J Rheumatol. 2005 Jul-Aug;34(4):309-14. PubMed PMID: 16195165.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Muscle hypertrophy, strength development, and serum hormones during strength training in elderly women with fibromyalgia. AU - Valkeinen,H, AU - Häkkinen,K, AU - Pakarinen,A, AU - Hannonen,P, AU - Häkkinen,A, AU - Airaksinen,O, AU - Niemitukia,L, AU - Kraemer,W J, AU - Alén,M, PY - 2005/10/1/pubmed PY - 2005/11/8/medline PY - 2005/10/1/entrez SP - 309 EP - 14 JF - Scandinavian journal of rheumatology JO - Scand. J. Rheumatol. VL - 34 IS - 4 N2 - OBJECTIVE: To examine the effects of strength training on maximal force, cross-sectional area (CSA), and electromyographic (EMG) activity of muscles and serum hormone concentrations in elderly females with fibromyalgia (FM). METHODS: Twenty-six patients with FM were randomly assigned to a training (FMT; n = 13; mean age 60 years) or a control (FMC; n = 13; 59 years) group. FMT performed progressive strength training twice a week for 21 weeks. The measurements included maximal isometric and concentric leg extension forces, EMG activity of the vastus lateralis and medialis, CSA of the quadriceps femoris, and serum concentrations of testosterone (T), free testosterone (FT), growth hormone (GH), insulin-like growth factor-1 (IGF-1), dehydroepiandrosterone sulfate (DHEAS), and cortisol. Subjectively perceived symptoms of FM were also assessed. RESULTS: All patients were able to complete the training. In FMT strength training led to increases of 36% (p<0.001) and 33% (p<0.001) in maximal isometric and concentric forces, respectively. The CSA increased by 5% (p<0.001) and the EMG activity in isometric action by 47% (p<0.001) and in concentric action by 57% (p<0.001). Basal serum hormone concentrations remained unaltered during strength training. The subjective perceived symptoms showed a minor decreasing tendency (ns). No statistically significant changes occurred in any of these parameters in FMC. CONCLUSION: Progressive strength training increases strength, CSA, and voluntary activation of the trained muscles in elderly women with FM, while the measured basal serum hormone concentrations remain unaltered. Strength training benefits the overall physical fitness of the patients without adverse effects or any exacerbation of symptoms and should be included in the rehabilitation programmes of elderly patients with FM. SN - 0300-9742 UR - https://www.unboundmedicine.com/medline/citation/16195165/Muscle_hypertrophy_strength_development_and_serum_hormones_during_strength_training_in_elderly_women_with_fibromyalgia_ L2 - http://www.tandfonline.com/doi/full/10.1080/03009740510018697 DB - PRIME DP - Unbound Medicine ER -