European Heart Journal Advance Access published online on June 29, 2005
European Heart Journal, doi:10.1093/eurheartj/ehi394
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1 Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA, USA; Kuopio Research Institute of Exercise Medicine, Kuopio, Finland; Department of Physiology, University of Kuopio, PO Box 1627, 70211 Kuopio, Finland
* To whom correspondence should be addressed. Aims To study the effect of exercise training on plasma C-reactive protein, a marker of inflammation. Methods and results We performed a 20 week standardized exercise training programme in 652 sedentary healthy white and black men and women. C-reactive protein was measured with a high sensitivity assay. The study sample was stratified according to baseline C-reactive protein levels using a recommended classification (low <1.0 mg/L, n=265; moderate 1.0-3.0 mg/L, n=225; high >3.0 mg/L, n=162). The median C-reactive protein reduction was 1.34 mg/L in the high baseline C-reactive protein group. C-reactive protein levels did not change in the low or moderate baseline C-reactive protein groups. The difference among the C-reactive protein groups was significant adjusting for all correlates of baseline C-reactive protein (P<0.001) and additionally for changes in body weight, glucose, insulin, LDL cholesterol, HDL cholesterol, triglycerides, systolic and diastolic blood pressure, and maximal oxygen uptake (P<0.001). The C-reactive protein reduction in the high baseline C-reactive protein group was consistent across all population groups (P<0.001 for difference among baseline C-reactive protein groups). Conclusion Plasma C-reactive protein levels reduced in response to exercise training in sedentary healthy adults with high initial C-reactive protein levels. This finding may partly explain the effectiveness of regular physical activity in the prevention and treatment of cardiovascular and metabolic diseases.
Received February 1, 2005
Revised June 1, 2005
Accepted June 9, 2005
Clinical research
Effect of exercise training on plasma levels of C-reactive protein in healthy adults: the HERITAGE Family Study
2 Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA, USA
3 School of Kinesiology, University of Minnesota, Minneapolis, MN, USA
4 Division of Biostatistics, Washington University School of Medicine, St Louis, MO, USA; Department of Genetics, Washington University School of Medicine, St Louis, MO, USA; Department of Psychiatry, Washington University School of Medicine, St Louis, MO, USA
5 Department of Kinesiology, Indiana University, Bloomington, IN, USA
6 Department of Health and Kinesiology, Texas A & M University, College Station, TX, USA
Timo A. Lakka, E-mail: timo.lakka{at}uku.fi
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