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J Appl Physiol (October 11, 2002). doi:10.1152/japplphysiol.00377.2002
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Articles in PresS, published online ahead of print October 11, 2002
J Appl Physiol, 10.1152/jap.00377.2002
Submitted on May 1, 2002
Accepted on October 7, 2002

Effect of Resistance Exercise on Postprandial Lipemia

Darby S Petitt1*, Sigurbjorn A Arngrimsson1, and Kirk J Cureton1

1 Department of Exercise Science, University of Georgia, Athens, GA, USA

* To whom correspondence should be addressed. E-mail: darbys.stewart{at}colorado.edu.

The purpose of this study was to examine the effect of resistance exercise on postprandial lipemia. Fourteen young men and women participated in each of three treatments: 1) control (CON), 2) resistance exercise (RE), and 3) aerobic exercise (AE) estimated to have an energy expenditure (EE) equal that for RE. Each trial consisted of performing a treatment on Day 1 and ingesting a fat-tolerance test meal 16 hours later (Day 2). Resting metabolic rate and fat oxidation were measured at baseline and at 3 and 6 hours postprandial on Day 2. Blood was collected at baseline and at 0.5, 1, 2, 3, 4, 5, and 6 hours after meal ingestion. RE and AE were similar in EE (1.7 ± 0.1 vs 1.6 ± 0.1 MJ, respectively; means ± SE), as measured using the Cosmed K4b2. Baseline triglycerides (TG) were significantly lower after RE than after CON (19%) and AE (21%). Further, the area under the postprandial response curve (AUC) for TG, adjusted for baseline differences, was significantly lower after RE than after CON (14%) and AE (18%). Resting fat oxidation was significantly greater after RE than after CON (21%) and AE (28%). These results indicate that resistance exercise lowers baseline and postprandial TG, and increases resting fat oxidation, 16 hours after exercise.




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