Document Detail

Effect of aerobic leg exercise training on subcutaneous adipose tissue of thigh in young Japanese women.
MedLine Citation:
PMID:  19823007     Owner:  NLM     Status:  MEDLINE    
A one-legged training model was adopted to assess the influence of moderate-intensity exercise training on subcutaneous adipose tissue, especially focusing on the trained limb. Eight young sedentary Japanese women (ages 21-23 yr) participated in a 12-week training program. The leg was assigned randomly to trained or untrained limb. Each subject performed a supervised 60-min one-legged cycle ergometer training session three times a week. The exercise intensity was set at approximately 40% of peak VO(2) ("moderate" intensity, i.e., below the estimated lactate threshold), which was determined before training. Each subject performed a one-legged incremental cycle exercise test until exhaustion to determine the peak VO(2) of each leg (the trained and untrained legs being investigated separately). The areas of subcutaneous fat and the remaining nonfat tissues of the thigh were evaluated by our novel visualized measuring system based on ultrasonography. The fat cross-sectional areas of the trained and untrained thigh were not different after training (trained: 68.6+/-17.8 vs. untrained: 68.3+/-18.5 cm(2)). The non-fat (muscle and bone) area was also similar between the trained and untrained limb. In addition, there was no systematic influence of the training on the total and lean body mass. After training, the duration time of the one-legged cycle incremental exercise test by the trained leg was significantly improved unilaterally (trained: 1049+/-122 vs. untrained: 930+/-109 s, p<0.05) without any difference of peak VO(2). The results indicate that moderate one-legged aerobic training did not induce any compositional change in the trained thigh; rather, what did improve were certain peripheral factor alone relating to endurance.
Akira Miura; Naomi Yamamoto; Masako Yamaoka Endo; Hatsumi Ueoka; Masako Yamada; Shin-ya Kuno; Hironori Sato; Yoshiyuki Fukuba
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of physiological anthropology     Volume:  28     ISSN:  1880-6805     ISO Abbreviation:  J Physiol Anthropol     Publication Date:  2009 Sep 
Date Detail:
Created Date:  2009-10-13     Completed Date:  2010-02-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101269653     Medline TA:  J Physiol Anthropol     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  247-50     Citation Subset:  IM    
Department of Exercise Science and Physiology, School of Health Sciences, Prefectural University of Hiroshima, Hiroshima, Japan.
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MeSH Terms
Analysis of Variance
Asian Continental Ancestry Group
Exercise / physiology*
Leg / physiology*
Subcutaneous Fat / physiology*
Thigh / anatomy & histology*,  physiology
Young Adult

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