Post-prandial capillary triacylglycerol responses to moderate exercise  in centrally obese middle-aged men.
In this study, we wished to determine whether 30 min of moderate-intensity exercise, corresponding to minimal recommended guidelines, attenuates post-prandial capillary triacylglycerol concentrations in obese men. Ten middle-aged, centrally obese men (age 46 +/- 2 years, body mass index 31.6 +/- 1.0 kg · m(-2), waist circumference 104.6 +/- 2.2 cm) completed two 2-day trials (exercise and control) at least one week apart in a randomized, repeated-measures design. On day 1, participants either cycled for 30 min at approximately 60% of maximal heart rate in the afternoon or rested (no exercise). On day 2 of both trials, after a 10-h overnight fast, participants consumed a test meal of moderate fat content (35%) for breakfast. Capillary blood samples were collected in the fasted state (0 h) and at 2, 4, and 6 h post-prandially on day 2. Total area under the capillary triacylglycerol concentration versus time curve was significantly lower on the exercise than control trial (P = 0.023). One 30-min session of moderate-intensity cycling is effective in lowering post-prandial capillary triacylglycerol concentration in obese middle-aged men. These findings may have important implications for exercise recommendations as a means to reduce the risk of cardiovascular disease if such exercise is performed for an extended period.
Miyashita
Masashi
M
Faculty of Sport Sciences, Waseda University, Tokorozawa, Japan. m.miyashita@aoni.waseda.jp
Sasai
Hiroyuki
H
Tanaka
Kiyoji
K
D000328:Adult; D019540:Area Under Curve; D001642:Bicycling / Q000502:physiology*; D015992:Body Mass Index; D002196:Capillaries / Q000378:metabolism; D004041:Dietary Fats / Q000378:metabolism*; D004734:Energy Metabolism; D015444:Exercise / Q000502:physiology*; D005215:Fasting; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D056128:Obesity, Abdominal / Q000097:blood*; D019518:Postprandial Period; D014280:Triglycerides / Q000097:blood*; D055105:Waist Circumference
D004041:Dietary Fats; D014280:Triglycerides