Effect of Aerobic Leg Exercise Training on Subcutaneous Adipose Tissue of Thigh in Young Japanese Women

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概要

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• 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 21-23yr) 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±18.5cm^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±109s, 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.

• 日本生理人類学会の論文

著者

• Miura Akira

  Department of 2nd Cardiology, Wakayama Medical Center

• Fukuba Yoshiyuki

  Department of Exercise Science and Physiology, School of Health Sciences, Prefectural University of

• Sato Hironori

  Tsukuba Wellness Research

• Yamada Masako

  Department of Exercise Science and Physiology, School of Health Sciences, Prefectural University of

• Ueoka Hatsumi

  Department Of Exercise Science And Physiology School Of Health Sciences Prefectural University Of Hi

• Miura A

  Department Of Exercise Science And Physiology School Of Health Sciences Prefectural University Of Hi

• Miura Akira

  Yokogawa Electric Corporation

• Miura Akira

  Department Of 2nd Cardiology Wakayama Medical Center

• Yamada Masako

  Department Of Exercise Science And Physiology School Of Health Sciences Prefectural University Of Hi

• Yamamoto Naomi

  Department of Exercise Science and Physiology, School of Health Sciences, Prefectural University of

• Yamaoka Endo

  Department of Exercise Science and Physiology, School of Health Sciences, Prefectural University of

• Kuno Shin-ya

  Institute of Health and Sport Sciences, University of Tsukuba

• Fukuba Yoshiyuki

  Department Of Exercise Science And Physiology School Of Health Sciences Prefectural University Of Hi

• Fukuba Yoshiyuki

  Research Institute For Radiational Biology And Medicine Hiroshima University

• Fukuba Yoshiyuki

  Department Of Exercise Science And Physiology School Of Health Sciences Hiroshima Women's Unive

• Fukuba Yoshiyuki

  Faculty Of Engileeering University Of Hiroshima

• Yamaoka Endo

  Department Of Exercise Science And Physiology School Of Health Sciences Prefectural University Of Hi

• Yamada Masako

  Department Of Earth And Space Science Osaka University

• Kuno Shin-ya

  Institute Of Health And Sport Sciences University Of Tsukuba:tsukuba Wellness Research

• Yamamoto Naomi

  Department Of Exercise Science And Physiology School Of Health Sciences Prefectural University Of Hi

• Miura Akira

  Hiroshima Women's University

• Fukuoka Yoshiyuki

  Prefectural University Of Kumamoto Masahiro Itoh Kumamoto University

• Sato Hironori

  Tsukuba Wellness Res. Co Ltd.

• Kuno Shin-ya

  Institute of Health & Sport Sciences, University of Tsukuba

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