lipaemia and exercise

A single bout of prolonged, moderate-intensity endurance exercise lowers fasting and postprandial triacylglycerolaemia concentrations the next day. However, the triacylglycerolaemia -lowering effect of exercise is dose-dependent and does not manifest after light exercise of low energy input.. Maraki and colleagues have described a study examining if adding mild energy intake restriction to such exercise, in order to augment total energy deficit, would potentiate the hypotriacylglycerolaemic effect.
Eight healthy, sedentary,young , slim under 30 years of age premenopausal women , BMl 21·8 (SEM 0·9) kg/m2) performed two oral fat tolerance tests in the morning on two different occasions: once after a single bout of light exercise (100 min at 30 % of peak oxygen consumption; net energy expenditure 1·04 MJ coupled with mild energy intake restriction (1·39 (SEM 0·22) MJ) on the preceding day, and once after resting coupled with isoenergetic feeding on the preceding day (control). Fasting plasma triacylglycerols, in the triacylglycerol-rich lipoproteins (TRL-TAG) and serum insulin concentrations were 18,34 and 30% lower, respectively, after exercise plus diet compared with the control trial (PIt would be of interest to see if the same effect was possible in well built mature ladies and men.
Maraki et al 2009 Exercise of low energy expenditure along with mild energy intake restriction acutely reduces fasting and postprandial triacylglycerolaemia in young women. Brit J Nutrition vol 101, 408-416

Martin Eastwood
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