Effect of exercise performed immediately before a meal of moderate fat content on postprandial lipaemia.
The majority of the studies that have found a lowering effect of exercise on postprandial lipaemia have employed exercise 12-18 h before a test meal of exaggerated fat content (over 60 % total energy). The aim of the present study was to investigate whether this effect is manifest when exercise is performed immediately before a test meal of moderate fat content. Eleven healthy young men cycled for 45 min at 62 % maximal heart rate or rested, and, immediately afterwards, consumed a meal of moderate fat content (35 % total energy, 0.65 g/kg body mass) in a random counterbalanced design. Blood samples were drawn before exercise, before the meal, and for 8 h postprandially. No significant differences were observed in plasma triacylglycerol concentrations and areas under the triacylglycerol concentration v. time curves between exercise and rest, although exercise reduced the postprandial lipaemic response by 17 %. Non-esterified fatty acids, glucose, and insulin did not differ significantly between the trials. In conclusion, moderate exercise performed immediately before a meal of a fat content typical to the Western diet had only a modest effect on postprandial lipaemia.
Petridou
Anatoli
A
Department of Physical Education and Sport Science, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece.
Gerkos
Nikos
N
Kolifa
Myrsini
M
Nikolaidis
Michalis G
MG
Simos
Dimitris
D
Mougios
Vassilis
V
D000328:Adult; D019540:Area Under Curve; D001786:Blood Glucose / Q000032:analysis; D004041:Dietary Fats / Q000008:administration & dosage / Q000378:metabolism*; D004734:Energy Metabolism / Q000502:physiology; D015444:Exercise / Q000502:physiology*; D005227:Fatty Acids / Q000008:administration & dosage; D005230:Fatty Acids, Nonesterified / Q000097:blood; D006801:Humans; D007328:Insulin / Q000097:blood; D008297:Male; D019518:Postprandial Period; D013997:Time Factors; D014280:Triglycerides / Q000097:blood*
D001786:Blood Glucose; D004041:Dietary Fats; D005227:Fatty Acids; D005230:Fatty Acids, Nonesterified; D007328:Insulin; D014280:Triglycerides