Serum lipoprotein cholesterols in male collegiate rowers

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  • <Originals>Serum Lipoprotein Cholesterols in Male Collegiate Rowers :

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To determine the influence of rowing exercise on serum lipid and lipoprotein profiles, forty-one collegiate male rowers were compared with thirty-one sedcntary men. Compared with sedentary men, male rowers were taller (P<0.01),^-heavier (P<0.001), had higher body mass index (BMI)(P<0.05), and a larger proportion of lean body mass (LBM)(P<0.001). However, the rowers had a similar percentage of body fat as that of sedentary men (11±4 vs. 13±5 %, mean±SD). Male rowers had higher maximal oxygen uptake (VO_<2max> 61±4 ml・kg^<-1>・min^<-1>) and leg extension power (33.7±5W・kg^<-1>) than sedentary men (48±6 ml・kg^<-1>・min^<-1>, 25±6 W・kg^<-1>, P<0.001, respectively). The blood variables were within the normal range, except for an elevated creatine phosphokinase (CPK) in male rowers. Male rowers had lower total cholesterol (TC 3.95±0.62 vs. 4.77±0.64 mmol・L^<-1>, P<0.001), low-density lipoprotein cholesterol (LDLC 2.01±0.51 vs. 2.85±0.59 mmol・L^<-1>, P<0.001) and the ratio of LDLC to high-density lipoprotein cholesterol (HDLC) (1.41±0.48 vs. 2.00±0.56 unit, P<0.001) than sedentary men. There was similar HDLC levels between the rowers and sedentary men (1.49±0.31 vs. 1.47±0.22 mmol・L^<-1>). Thus, the findings of the current cross-sectional study suggest the possibility that regularly performed rowing exercise, which increases both VO_<2max> and LBM, may induce a favorable reduction of serum LDLC in men.

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