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Title: Exercise and postprandial plasma triacylglycerol concentrations in healthy adolescent boys
Authors: Barrett, Laura A.
Morris, John G.
Stensel, David J.
Nevill, Mary
Keywords: Postprandial lipemia
Lipid metabolism
Games activity
Cardiovascular disease risk
Issue Date: 2007
Publisher: Lippincott, Williams & Wilkins / © The American College of Sports Medicine
Citation: BARRETT, L.A. ... et al, 2007. Exercise and postprandial plasma triacylglycerol concentrations in healthy adolescent boys. Medicine and Science in Sports and Exercise, 39 (1), pp. 116 - 122.
Abstract: Purpose: Atherosclerosis is initiated in childhood. Therefore, reducing postprandial triacylglycerol concentrations ([TAG]), even in young people, could potentially slow atherogenic progression. This study investigated whether continuous-exercise and intermittent-games activity would reduce postprandial [TAG] in adolescent boys. Methods: Nineteen subjects were randomly assigned to either a continuous-exercise group (N = 10) or an intermittent-games group (N = 9) and underwent two 2-d trials. Trials were performed a minimum of 7 d apart in a randomized order, consisting of a rest trial and either a continuous-exercise or intermittent-games trial. In the rest trial, subjects took no exercise on day 1. On day 1 of the exercise trial, subjects completed four blocks (approximately 15 min each) of uphill treadmill walking or intermittent-games activity with 3 min of rest between each block. On day 2, subjects came to the laboratory after an overnight fast, and finger-prick blood samples were obtained in the fasted state. Subjects then consumed a test meal (1.25 g of fat, 1.07 g of carbohydrate, 0.20 g of protein, and 67 kJ·kg−1 body mass). Further blood samples were collected at 30 and 45 min and at 1, 3, 4, and 6 h postprandially. Results: The total area under the plasma [TAG] versus time curve was lower on day 2 after exercise than the rest condition in both groups (Student's t-tests for correlated means: continuous-exercise group 14%, P = 0.050; intermittent-games group 26%, P = 0.002). Conclusion: Both continuous-exercise and intermittent-games activity reduce [TAG] in healthy adolescent boys when performed the afternoon before ingesting a high-fat meal.
Description: This is a non-final version of an article published in final form in Medicine and Science in Sports and Exercise, 2007, 39 (1), pp. 116 - 122. The definitive version is available at: http://dx.doi.org/10.1249/01.mss.0000240327.31276.18.
Sponsor: This work was supported by a grant from the British Heart Foundation National Centre for Physical Activity and Health.
Version: Accepted for publication
DOI: 10.1249/01.mss.0000240327.31276.18
URI: https://dspace.lboro.ac.uk/2134/17201
Publisher Link: http://dx.doi.org/10.1249/01.mss.0000240327.31276.18
ISSN: 0195-9131
Appears in Collections:Published Articles (Sport, Exercise and Health Sciences)

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