title: Ramadan fastings effect on plasma leptin, adiponectin concentrations, and body composition in trained young men.
abstract: OBJECTIVE
  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.
  
  
  CONCLUSIONS
  Lipolysis might have occurred because of increased plasma triglycerides and HDL cholesterol concentrations.
authors.affiliation: Superior Inst. of Sport and Physical Education, Gafsa, Tunisia.
authors.forename: Ezzedine
authors.initials: E
authors.lastname: Bouhlel
authors.forename: Myriam
authors.initials: M
authors.lastname: Denguezli
authors.forename: Monia
authors.initials: M
authors.lastname: Zaouali
authors.forename: Zouhair
authors.initials: Z
authors.lastname: Tabka
authors.forename: Roy J
authors.initials: RJ
authors.lastname: Shephard
mesh_terms: D052242:Adiponectin / Q000097:blood; D000293:Adolescent; D001823:Body Composition / Q000502:physiology*; D015992:Body Mass Index; D008076:Cholesterol, HDL / Q000097:blood; D015444:Exercise / Q000502:physiology*; D005080:Exercise Test; D005215:Fasting / Q000378:metabolism*; D005538:Football; D006801:Humans; D007328:Insulin / Q000097:blood; D007333:Insulin Resistance / Q000502:physiology*; D020738:Leptin / Q000097:blood*; D008297:Male; D011506:Proteins / Q000378:metabolism; D014280:Triglycerides / Q000097:blood; D055815:Young Adult
chemical_list: D052242:Adiponectin; D008076:Cholesterol, HDL; D007328:Insulin; D020738:Leptin; D011506:Proteins; D014280:Triglycerides