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Int J Sport Nutr Exerc Metab. 2008 Dec;18(6):617-27.

Ramadan fastings effect on plasma leptin, adiponectin concentrations, and body composition in trained young men.

Author information

  • 1Superior Inst. of Sport and Physical Education, Gafsa, Tunisia.

Abstract

PURPOSE:

To evaluate the effect of Ramadan fasting on parameters of insulin resistance in trained athletes at rest and after aerobic exercise.

METHODS:

Nine male rugby players (age 19 +/- 2 yr, height 1.78 +/- 0.74 m) were tested 3 times: 1 week before observance of Ramadan (C), at the end of the first week (R1), and during the fourth week (R2). They performed a progressive cycle-ergometer test at each visit. Data collected at rest and at the end of aerobic exercise included simple anthropometry (body mass, body-mass index, body fat, fat-free mass), biochemical parameters (serum glucose, cholesterol, HDL cholesterol, triglycerides, creatinine, and serum proteins), and selected hormone concentrations (plasma insulin, leptin, and adiponectin).

RESULTS:

Ramadan fasting was associated with a reduction of body mass and body fat (R2 vs. C, p < .01) without significant change in leptin or adiponectin levels.

CONCLUSION:

Lipolysis might have occurred because of increased plasma triglycerides and HDL cholesterol concentrations.

PMID:
19164831
[PubMed - indexed for MEDLINE]
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