| Exercise intensity influences nonexercise activity thermogenesis in overweight and obese adults. | |
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MedLine Citation:
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PMID: 21412111 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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PURPOSE: : The purpose of this study was to determine the effect of acute bouts of moderate- and high-intensity walking exercise on nonexercise activity thermogenesis (NEAT) in overweight and obese adults. METHODS: : Sixteen participants performed a single bout of either moderate-intensity walking exercise (MIE) or high-intensity walking exercise (HIE) on two separate occasions. The MIE consisted of walking for 60 min on a motorized treadmill at 6 km·h. The 60-min HIE session consisted of walking in 5-min intervals at 6 km·h and 10% grade followed by 5 min at 0% grade. NEAT was assessed by accelerometer 3 d before, on the day of, and 3 d after the exercise sessions. RESULTS: : There was no significant difference in NEAT vector magnitude (counts per minute) between the preexercise period (days 1-3) and the exercise day (day 4) for either the MIE or the HIE protocol. In addition, there was no change in NEAT during the 3 d after the MIE session; however, NEAT increased by 16% on day 7 (postexercise) compared with the exercise day (P = 0.32). However, during the postexercise period after the HIE session, NEAT was increased by 25% on day 7 compared with the exercise day (P = 0.08) and by 30%-33% compared with the preexercise period (days 1, 2, and 3; P = 0.03, 0.03, and 0.02, respectively). CONCLUSION: : A single bout of either MIE or HIE did not alter NEAT on the exercise day or on the first 2 d after the exercise session. However, monitoring NEAT on a third day allowed the detection of a 48-h delay in increased NEAT after performing HIE. A longer-term intervention is needed to determine the effect of accumulated exercise sessions over a week on NEAT. |
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Authors:
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Mohammad A Alahmadi; Andrew P Hills; Neil A King; Nuala M Byrne |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Medicine and science in sports and exercise Volume: 43 ISSN: 1530-0315 ISO Abbreviation: Med Sci Sports Exerc Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-03-17 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8005433 Medline TA: Med Sci Sports Exerc Country: United States |
Other Details:
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Languages: eng Pagination: 624-31 Citation Subset: IM; S |
Affiliation:
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1School of Human Movement Studies, Institute of Health and Biomedical Innovation, Queensland University of Technology, Queensland, AUSTRALIA; and 2Exercise Physiology Laboratory, King Saud University, Riyadh, SAUDI ARABIA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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