Associations of muscle strength and fitness with metabolic syndrome in men

Reference:

Jurca, R., Lamonte, M. J., Church, T. S., Earnest, C. P., Fitzgerald, S. J., Barlow, C. E., Jordan, A. N., Kampert, J. B. and Blair, S. N., 2004. Associations of muscle strength and fitness with metabolic syndrome in men. Medicine and Science in Sports and Exercise, 36 (8), pp. 1301-1307.

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Official URL:

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=15292736 http://graphics.tx.ovid.com/ovftpdfs/FPDDNCJJKGNBNP00/fs047/ovft/live/gv024/00005768/00005768-200408000-00006.pdf

Abstract

PURPOSE: To examine the associations for muscular strength and cardiorespiratory fitness with the prevalence of metabolic syndrome among men. METHODS: Participants were 8570 men (20-75 yr) for whom an age-specific muscular strength score was computed by combining the body weight adjusted one-repetition maximum measures for the leg press and the bench press. Cardiorespiratory fitness was quantified by age-specific maximal treadmill exercise test time. RESULTS: Separate age and smoking adjusted logistic regression models revealed a graded inverse association for metabolic syndrome prevalence with muscular strength (beta = -0.37, P < 0.0001) and cardiorespiratory fitness (beta = -1.2, P < 0.0001). The association between strength and metabolic syndrome was attenuated (beta = -0.08, P < 0.01) when further adjusted for cardiorespiratory fitness. The association between cardiorespiratory fitness and metabolic syndrome was unchanged (beta = -1.2, P < 0.0001) after adjusting for strength. Muscular strength added to the protective effect of fitness among men with low (P trend = 0.0002) and moderate (P trend < 0.0001) fitness levels. Among normal weight (BMI < 25), overweight (BMI 25-30), and obese (BMI >or= 30) men, respectively, being strong and fit was associated with lower odds (73%, 69%, and 62% respectively, P < 0.0001) of having prevalent metabolic syndrome. CONCLUSIONS: Muscular strength and cardiorespiratory fitness have independent and joint inverse associations with metabolic syndrome prevalence.

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