Strength training does not improve lipoproteinlipid profiles in men at risk for CHD

KOKKINOS, P. F., B. F. HURLEY, M. A. SMUTOK, C. FARMER, C. REECE, R. SHULMAN, C. CHARABOGOS, J. PATTERSON, S. WILL, J. DEVANE-BELL, and A. P. GOLDBERG. Strength training does not improve lipoprotein-lipid profiles in men at risk for CHD. Med. Sci. Sports Exerc., Vol. 23, No. 10, pp. 1134–1139, 1991. Sixteen untrained males, age 46 ± 11 yr (X ± SD), were studied to determine the effects of 20 wk of strength training on lipoprotein-lipid profiles and post-heparin lipase activities. All subjects had abnormal lipoprotein-lipid profiles and at least two other risk factors for coronary heart disease (CHD). To control for day-to-day variations in blood lipoprotein levels, baseline values were established by taking at least two blood samples on separate days from the training and control groups. The training program resulted in a 50 increase in upper body strength (P< 0.001) and a 37 increase in lower body strength (P< 0.001) as measured by the one repetition maximum test (1-RM). No changes in the 1-RM test were observed in the control group. There were no significant changes in O2max(34.5 ± 6.4 vs 36.2 ± 7.4 ml.kg-1.min-1or percent fat (25.4 ± 4.2 vs 24.9 ± 4.1) with training. There were also no significant changes in plasma concentrations of triglyceride (193 ± 96 vs 171 ± 101 mg.dl-1), total cholesterol (231 ± 22 vs 210 ± 22 mg.dl-1), and HDL-C (35 ± 6 vs 36 ± 8 mg.dl-1), or LDL-C (139 ± 16 vs 139 ± 21 mg.dl-1). Furthermore, the activities of post-heparin lipoprotein lipase (9 ± 4 vs 13 ± 5 moles.ml-1.h-1) and hepatic lipase (35 ± 10 vs 35 ± 9 moles.ml-1.h-1) did not change with training. These results indicate that strength training does not improve lipoprotein-lipid profiles or alter the lipases that regulate HDL-C and triglyceride metabolism in men who are at risk for CHD.