| EFFECTS OF ACUTE SPRINT INTERVAL CYCLING AND ENERGY REPLACEMENT ON POSTPRANDIAL LIPEMIA. | |
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MedLine Citation:
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PMID: 21852403 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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High postprandial blood triglyceride (TG) levels increase cardiovascular disease (CVD) risk. Exercise interventions may be effective in reducing postprandial blood TG. PURPOSE: To determine the effects of sprint interval cycling (SIC) with and without replacement of the energy deficit on postprandial lipemia (PPL). METHODS: In a repeated-measures cross-over design, 6 men and 6 women participated in 3 trials each taking place over 2 d. On the evening of the first day of each trial, the participants either did SIC without replacing the energy deficit (Ex-Def), did SIC and replaced the energy deficit (Ex-Bal), or did not exercise (Con). SIC was performed on a cycle ergometer and involved four 30-s all-out sprints with 4 min active recovery. In the morning of Day 2, responses to a high-fat meal were measured. Venous blood samples were collected in the fasted state and at 0, 30, 60, 120, and 180 min postprandial. RESULTS: There was a trend toward a reduction with treatment in fasting TG (P=0.068), but no significant treatment effect for fasting insulin, glucose, NEFA, or BHB (P>0.05). The postprandial area under the curve (AUC) (mmol(.)l(-1)(.)3 h(-1)) TG response was significantly lower in Ex-Def (21%, P = 0.006) and Ex-Bal (10%, P = 0.044) than in Con, and significantly lower in ExDef (12%, P = 0.032) than in Ex-Bal. There was no treatment effect (P>0.05) observed for AUC responses of insulin, glucose, NEFA, or BHB. CONCLUSION: Sprint interval cycling reduces postprandial lipemia, but the energy deficit alone does not fully explain the decrease observed. |
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Authors:
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Eric Christopher Freese; Ari S Levine; Donald P Chapman; Dorothy B Hausman; Kirk J Cureton |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-8-18 |
Journal Detail:
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Title: Journal of applied physiology (Bethesda, Md. : 1985) Volume: - ISSN: 1522-1601 ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-8-19 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8502536 Medline TA: J Appl Physiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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1University of Georgia. |
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