Article: Effects of Short-Term Resistance Training on Serum Leptin Levels in Obese Adolescents

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TitleEffects of Short-Term Resistance Training on Serum Leptin Levels in Obese Adolescents
AuthorsLau, PWC3
Kong, Z2
Choi, Cr4
Yu, CCW1
Chan, DFY5
Sung, RYT5
Leung, BWC1
Keywordsadolescent obesity
leptin
resistance training
Issue Date2010
PublisherElsevier (Singapore) Pte Ltd.
CitationJournal Of Exercise Science And Fitness, 2010, v. 8 n. 1, p. 54-60 [How to Cite?]
DOI: http://dx.doi.org/10.1016/S1728-869X(10)60008-1
AbstractThe purpose of this study was to examine the effects of a short-term resistance training program on serum leptin concentrations in obese adolescents. Eighteen Chinese obese adolescents participated in the supervised weight management program. Resistance training was conducted three times a week on alternate days for 6 weeks. Body composition [body fat mass (FM) and body lean mass (LM)] determined by dual-energy X-ray absorptiometry, muscle strength and leptin, insulin and glucose were measured before and after training. Subjects demonstrated significantly improved strength of leg, chest and bicep under conditions of stability in weight, FM and LM. There were positive correlations between leptin and body mass index, FM, %FM, waist girth and hip girth, and negative correlations between leptin and %L M at the resting state before and after 6 weeks of resistance training. No significant relationship was found between leptin concentration and the parameters of muscular strength or concentrations of insulin and glucose. Compared to pre-training values, serum leptin levels were not significantly altered, while relative leptin (leptin/FM) decreased significantly after the short-term resistance training. These results indicate that short-term resistance training enhances muscle strength but does not alter leptin levels in obese adolescents with weight and FM stability. The results also suggest that 6 weeks of resistance training decreases the requirement of leptin per unit of FM and improves leptin sensitivity in obese adolescents. © 2010 Elsevier (Singapore) Pte Ltd. All rights reserved.
ISSN1728-869X
2011 Impact Factor: 0.512
2011 SCImago Journal Rankings: 0.033
DOIhttp://dx.doi.org/10.1016/S1728-869X(10)60008-1
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorLau, PWC
dc.contributor.authorKong, Z
dc.contributor.authorChoi, Cr
dc.contributor.authorYu, CCW
dc.contributor.authorChan, DFY
dc.contributor.authorSung, RYT
dc.contributor.authorLeung, BWC
dc.date.accessioned2010-10-31T11:44:48Z
dc.date.available2010-10-31T11:44:48Z
dc.date.issued2010
dc.description.abstractThe purpose of this study was to examine the effects of a short-term resistance training program on serum leptin concentrations in obese adolescents. Eighteen Chinese obese adolescents participated in the supervised weight management program. Resistance training was conducted three times a week on alternate days for 6 weeks. Body composition [body fat mass (FM) and body lean mass (LM)] determined by dual-energy X-ray absorptiometry, muscle strength and leptin, insulin and glucose were measured before and after training. Subjects demonstrated significantly improved strength of leg, chest and bicep under conditions of stability in weight, FM and LM. There were positive correlations between leptin and body mass index, FM, %FM, waist girth and hip girth, and negative correlations between leptin and %L M at the resting state before and after 6 weeks of resistance training. No significant relationship was found between leptin concentration and the parameters of muscular strength or concentrations of insulin and glucose. Compared to pre-training values, serum leptin levels were not significantly altered, while relative leptin (leptin/FM) decreased significantly after the short-term resistance training. These results indicate that short-term resistance training enhances muscle strength but does not alter leptin levels in obese adolescents with weight and FM stability. The results also suggest that 6 weeks of resistance training decreases the requirement of leptin per unit of FM and improves leptin sensitivity in obese adolescents. © 2010 Elsevier (Singapore) Pte Ltd. All rights reserved.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationJournal Of Exercise Science And Fitness, 2010, v. 8 n. 1, p. 54-60 [How to Cite?]
DOI: http://dx.doi.org/10.1016/S1728-869X(10)60008-1
dc.identifier.doihttp://dx.doi.org/10.1016/S1728-869X(10)60008-1
dc.identifier.epage60
dc.identifier.hkuros174762
dc.identifier.issn1728-869X
2011 Impact Factor: 0.512
2011 SCImago Journal Rankings: 0.033
dc.identifier.issue1
dc.identifier.openurl
dc.identifier.scopuseid_2-s2.0-77953668763
dc.identifier.spage54
dc.identifier.urihttp://hdl.handle.net/10722/125667
dc.identifier.volume8
dc.languageeng
dc.publisherElsevier (Singapore) Pte Ltd.
dc.relation.ispartofJournal of Exercise Science and Fitness
dc.relation.referencesReferences in Scopus
dc.rightsJournal of Exercise Science & Fitness. Copyright © Elsevier (Singapore) Pte Ltd.
dc.subjectadolescent obesity
dc.subjectleptin
dc.subjectresistance training
dc.titleEffects of Short-Term Resistance Training on Serum Leptin Levels in Obese Adolescents
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong
  2. University of Macau
  3. Hong Kong Baptist University
  4. Sports Management
  5. Chinese University of Hong Kong