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

TitleEffects of Short-Term Resistance Training on Serum Leptin Levels in Obese Adolescents
Authors
Keywordsadolescent obesity
leptin
resistance training
Issue Date2010
PublisherElsevier (Singapore) Pte Ltd.
Citation
Journal Of Exercise Science And Fitness, 2010, v. 8 n. 1, p. 54-60 How to Cite?
Abstract
The 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.
Persistent Identifierhttp://hdl.handle.net/10722/125667
ISSN
2013 Impact Factor: 0.529
2013 SCImago Journal Rankings: 0.234
References

 

Author Affiliations
  1. The University of Hong Kong
  2. Hong Kong Baptist University
  3. University of Macau
  4. Sports Management
  5. Chinese University of Hong Kong
DC FieldValueLanguage
dc.contributor.authorLau, PWCen_HK
dc.contributor.authorKong, Zen_HK
dc.contributor.authorChoi, Cren_HK
dc.contributor.authorYu, CCWen_HK
dc.contributor.authorChan, DFYen_HK
dc.contributor.authorSung, RYTen_HK
dc.contributor.authorLeung, BWCen_HK
dc.date.accessioned2010-10-31T11:44:48Z-
dc.date.available2010-10-31T11:44:48Z-
dc.date.issued2010en_HK
dc.identifier.citationJournal Of Exercise Science And Fitness, 2010, v. 8 n. 1, p. 54-60en_HK
dc.identifier.issn1728-869Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/125667-
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.en_HK
dc.languageengen_HK
dc.publisherElsevier (Singapore) Pte Ltd.en_HK
dc.relation.ispartofJournal of Exercise Science and Fitnessen_HK
dc.rightsJournal of Exercise Science & Fitness. Copyright © Elsevier (Singapore) Pte Ltd.en_HK
dc.subjectadolescent obesityen_HK
dc.subjectleptinen_HK
dc.subjectresistance trainingen_HK
dc.titleEffects of Short-Term Resistance Training on Serum Leptin Levels in Obese Adolescentsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1728-869X&volume=8&issue=1&spage=54&epage=60&date=2010&atitle=Effects+of+short-term+resistance+training+on+serum+leptin+levels+in+obese+adolescentsen_HK
dc.identifier.emailYu, CCW: yucw@hkucc.hku.hken_HK
dc.identifier.authorityYu, CCW=rp00982en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S1728-869X(10)60008-1en_HK
dc.identifier.scopuseid_2-s2.0-77953668763en_HK
dc.identifier.hkuros174762en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77953668763&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume8en_HK
dc.identifier.issue1en_HK
dc.identifier.spage54en_HK
dc.identifier.epage60en_HK
dc.identifier.scopusauthoridLau, PWC=7102543507en_HK
dc.identifier.scopusauthoridKong, Z=36157288500en_HK
dc.identifier.scopusauthoridChoi, Cr=36129507800en_HK
dc.identifier.scopusauthoridYu, CCW=35235958400en_HK
dc.identifier.scopusauthoridChan, DFY=7402216810en_HK
dc.identifier.scopusauthoridSung, RYT=7101684314en_HK
dc.identifier.scopusauthoridLeung, BWC=36157275600en_HK

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