Accuracy of Body Fat Assessment by Bioelectrical Impedance in Japanese Middle-Aged and Older People

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概要

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• Bioelectrical impedance analysis (BIA) is commonly used to measure the percentage of body fat (%BF), but its accuracy is controversial. In addition, the equations are specific to the group for which they were established. As far as we know, there is no study examining the accuracy of BIA in Japanese middle-aged and older people. We compared %BF assessed using BIA with that of dual-energy X-ray absorptiometry (DEXA) in 102 female and 51 male local residents aged 40 to 78y. Simple correlation coefficients were 0.79 for females and 0.69 for males, which are statistically significant (p<0.001). However, BIA tended to overestimate %BF in the lower BF group and underestimate it in the BF higher group, and only 45.1% for female and 47.1% for male subjects were measured accurately, i.e., within 10% of the measurement by DEXA. This result suggests that this model of BIA is an alternative for estimating %BF in Japanese middle-aged and older people as well as when subjects are within a normal body fat range, but greater accuracy is needed for lean and overweight subjects.

• 日本ビタミン学会の論文

著者

• SHIMAOKA Kiyoshi

  Research Center of Health, Physical Fitness and Sports, Nagoya University

• SAKAKIBARA Hisataka

  Department of Public Health, Nagoya University School of Medicine

• Mitsui Takahiro

  Faculty Of Human Health Hachinohe University

• Mitsui Takahiro

  Research Center Of Health Physical Fitness And Sports Nagoya University Furo-cho Chikusa-ku Nagoya

• Mitsui Takahiro

  Research Center For Solar Energy Chemistry Osaka University

• Shimaoka Kiyoshi

  Research Center Of Health Physical Fitness And Sports Nagoya University

• Sakakibara Hisataka

  Department Of Health Sciences School Of Medicine Nagoya University

• TSUZUKU Shigeki

  Body Design Medical Institute Japan

• KAJIOKA TAEKO

  School of Public Health, Graduate School of Medicine, The University of Tokyo

• KAJIOKA Taeko

  Department of Health Science, Faculty of Psychological and Physical Science, Aichi Gakuin University

• Tsuzuku Shigeki

  Department Of Public Health Kochi Medical School

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