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Year : 2021  |  Volume : 64  |  Issue : 5  |  Page : 244-250

Thirty minutes of moderate-intensity downhill or level running has no effect on postprandial lipemia: A randomized controlled trial

1 Department of Physical Education, National Taiwan Normal University, Taipei, Taiwan
2 Graduate Program in Department of Exercise Health Science, National Taiwan University of Sport, Taichung, Taiwan
3 Graduate Institute of Sports and Health Management, National Chung Hsing University, Taichung, Taiwan
4 Department of Emergency, Everan Hospital, Taichung, Taiwan
5 Department of Sport Performance, National Taiwan University of Sport, Taichung, Taiwan

Correspondence Address:
Dr. Chen-Kang Chang
No. 16, Sec. 1, Shuang-Shih Rd., Taichung 404
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/cjp.cjp_61_21

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Elevated postprandial triglyceride (TG) concentrations are linked to a relatively high risk of cardiovascular disease. Eccentric endurance exercise, such as downhill walking and running, can provide metabolic benefits similar to concentric exercise. However, whether eccentric exercise affects postprandial lipemia remains unknown. Nine healthy young men performed level running (trial) or downhill running (DR trial, −15% slope) at 60% VO2max or rest (CON trial) for 30 min in a randomized crossover design. The participants were fed a high-fat meal the next day. Blood and expired gas samples were collected before and 0.5, 1, 2, 3, 4, 5, and 6 h after the meal. Muscle soreness was measured using a visual analog scale. The DR trial induced mild muscle damage. During the 6-h postprandial period, serum TG concentrations and area under the curve (AUC) were similar across the three trials. The DR trial had a significantly higher AUC of nonesterified fatty acid concentrations and a significantly lower AUC of glucose concentrations than the CON trial. The results suggested that neither moderate-intensity DR nor running a level surface had a significant effect on lipemia after a high-fat meal. However, DR improved the postprandial glycemic response.

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