Relationship between visceral fat areas at the different levels and metabolic syndrome risk factors in middle-aged and older Japanese women

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  • Nakayama Yuki
    Faculty of sport and Health Science, Ritsumeikan University
  • Ido Ayumi
    Faculty of sport and Health Science, Ritsumeikan University
  • Ishii Kojiro
    Faculty of Health and Sports Science, Doshisha University
  • Iemitsu Motoyuki
    Faculty of sport and Health Science, Ritsumeikan University
  • Sato Koji
    Graduate School of Human Development and Environment, Kobe University
  • Fujimoto Masahiro
    Faculty of sport and Health Science, Ritsumeikan University
  • Kurihara Toshiyuki
    Faculty of sport and Health Science, Ritsumeikan University
  • Sato-Asahara Noriko
    Department of Endocrinology, Metabolism, and Hypertension Research, Clinical Research Institute, National Hospital Organization, Kyoto Medical Center
  • Sanada Kiyoshi
    Faculty of sport and Health Science, Ritsumeikan University

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Other Title
  • 日本人中高齢女性を対象とした内臓脂肪の分布と メタボリックシンドロームリスク因子との関係
  • ニホン ニンチュウ コウレイ ジョセイ オ タイショウ ト シタ ナイゾウ シボウ ノ ブンプ ト メタボリックシンドロームリスク インシ ト ノ カンケイ

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Abstract

PURPOSE: Accumulation of visceral adipose tissue （VAT） is closely related to metabolic syndrome, such as glucose intolerance, diabetes, abnormal lipid metabolism, and arterial sclerosis. In Japan, diagnosis criteria for metabolic syndrome has been determined by the waist circumference and VAT area at the navel level （around between Lumbar disc 4 and 5）. However, a previous study demonstrated that metabolic syndrome risk in Japanese men was associated with the VAT area at 5-7cm above L4-5, not at the L4-5 level. Since an imbalance of physical activity and caloric intake are related to accumulation of the VAT, we hypothesizes that the accumulation of VAT at the different levels are related to physical activity and caloric intake. The purpose of this study was to investigate the relationship between the VAT areas at the different levels and metabolic syndrome risks in Japanese middleaged and older women. METHODS: This study provides a cross-sectional investigation of 50 Japanese women （Obese: 32, Normal: 18）. Consecutive MRI images （from 3cm below L4-L5 to 10cm above L4-L5） were used to explore the relationship between each VAT area and metabolic syndrome risks （total cholesterol, HDL cholesterol, triglycerides, baPWV, fasting blood suger, HbA1c, blood pressure and number of metabolic syndrome risk factor（MetSN））. RESULTS: Significant correlations were found between the VAT areas at the levels 8-10cm higher than L4-L5, and HDL cholesterol, fasting blood sugar and MetSN（p＜0.05）. CONCLUSIONS: We found that the VAT area at the upper levels was significantly related to a metabolic syndrome risk in Japanese women.

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