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Springerplus. 2015 Aug 08;4:402. doi: 10.1186/s40064-015-1181-6. eCollection 2015.

Specific characterization of regional storage fat in upper and lower limbs of young healthy adults.

SpringerPlus

Junichiro Yamauchi, Toshiyuki Kurihara, Maki Yoshikawa, Sadayoshi Taguchi, Takeshi Hashimoto

Affiliations

  1. Graduate School of Human Health Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo, 192-0397 Japan.
  2. Future Institute for Sport Sciences, Tokyo, Japan.
  3. Research Center in Back, Neck, Other Joint Pain and Human Performance (BNOJPH), Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, Thailand.
  4. Department of Sport and Health Science, Ritsumeikan University, 1-1-1 Noji Higashi, Kusatsu, Shiga 525-8577 Japan.

PMID: 26261760 PMCID: PMC4529424 DOI: 10.1186/s40064-015-1181-6

Abstract

This study aimed to determine the specific characterization of regional storage fat in the upper limb as compared to the lower limb of young healthy adults. The regional storage fat and skeletal muscle in upper and lower limbs were obtained by magnetic resonance imaging (MRI) and multifrequency bioelectrical impedance analysis (BIA). For MRI measurements, images at the continuous anatomical cross-sectional areas of subcutaneous adipose tissue and skeletal muscle in the upper arm and thigh were selected for the analysis. Values measured by MRI were larger than those measured by BIA. MRI data showed that the percentage of fat was significantly higher in the upper arm compared to the thigh in both men and women. This study suggests that BIA results in a significantly different estimation of the whole body and limb composition when compared to MRI and that MRI is useful to determine regional specificities in the limb composition. From these quantified evaluation, we found significantly large amount of regional storage fat in upper limbs of young healthy adults, especially women.

Keywords: Bioelectrical impedance analysis (BIA); Body composition; Magnetic resonance imaging (MRI); Thigh; Upper arm

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