Energy replacement using glucose does not increase postprandial lipemia after moderate intensity exercise

被引:13
作者
Chiu, Chih-Hui [1 ]
Burns, Stephen Francis [2 ]
Yang, Tsung-Jen [3 ]
Chang, Yi-Hsin [4 ]
Chen, Yi-Liang [5 ]
Chang, Cheng-Kang [4 ]
Wu, Ching-Lin [6 ]
机构
[1] Natl Taiwan Univ Sport, Grad Program, Dept Exercise Hlth Sci, Taichung, Taiwan
[2] Nanyang Technol Univ, Phys Educ & Sports Sci Acad Grp, Singapore 639798, Singapore
[3] Natl Taiwan Normal Univ, Dept Phys Educ, Taipei, Taiwan
[4] Natl Taiwan Univ Phys Educ & Sport, Sport Sci Res Ctr, Taichung, Taiwan
[5] Univ Taipei, Grad Inst Sports Training, Taipei, Taiwan
[6] Natl Chung Hsing Univ, Grad Inst Sports & Hlth Management, Taichung 40227, Taiwan
关键词
Energy replacement; Postprandial lipemia; Energy deficit; LDL receptor; DENSITY-LIPOPROTEIN RECEPTOR; NONFASTING TRIGLYCERIDES; DIETARY-FAT; CARBOHYDRATE; CHOLESTEROL; METABOLISM; PLASMA; RISK; EXPRESSION; REDUCTION;
D O I
10.1186/1476-511X-13-177
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Background: Aerobic exercise can decrease postprandial triglyceride (TG) concentrations but the relationship between exercise-induced energy deficits and postprandial lipemia is still unclear. The aim of the present study was to examine the effect of a single bout of aerobic exercise, with and without energy replacement, on postprandial lipemia and on peripheral blood mononuclear cell (PBMC) mRNA expression of very low density lipoprotein (VLDL) and low density lipoprotein (LDL) receptors and 3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR). Methods: Nine healthy male humans completed three two-day trials in a random order. On day 1, volunteers rested (CON), completed 60 minutes of treadmill walking at 50% of VO2peak (EX) or completed the same bout of walking but with the energy replaced afterwards with a glucose solution (EXG). On day 2, volunteers rested and consumed a high fat test meal in the morning. Results: Total and incremental TG AUC were significantly lower on the EXG (P < 0.05) and EX (P < 0.05) trials than the CON trial with no difference between the two exercise trials. No significant difference was observed in VLDL or LDL receptor mRNA expression among the trials (P > 0.05). Conclusions: In conclusion, energy replacement by glucose did not affect the decrease in postprandial TG concentrations observed after moderate intensity exercise and exercise does not affect changes in PBMC HMGCR, VLDL and LDL receptor mRNA expression.
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页数:9
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