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Article

Physical Characteristics Vary According to Body Mass Index in Japanese Community-Dwelling Elderly Women

1
Department of Physical Therapy, Faculty of Health Sciences, Kyoto Tachibana University, Kyoto 607-8175, Japan
2
Department of Physical Therapy, Faculty of Rehabilitation, Kobe International University, Kobe 658-0032, Japan
3
Department of Physical Therapy, Hakuho College, Oji 636-0011, Japan
*
Author to whom correspondence should be addressed.
Geriatrics 2018, 3(4), 87; https://doi.org/10.3390/geriatrics3040087
Received: 29 October 2018 / Revised: 19 November 2018 / Accepted: 28 November 2018 / Published: 29 November 2018
Background: Body mass index (BMI) is related to health in the elderly. The purpose of this study was to investigate the physical characteristics in underweight, overweight, and obese Japanese community-dwelling elderly women compared to normal-weight elderly women. Methods: The study participants included 212 community-dwelling elderly women. They were categorized as underweight (BMI < 18.5), normal weight (18.5 ≤ BMI ≤ 22.9), overweight (23 ≤ BMI ≤ 24.9), and obese (BMI ≥ 25). Data on skeletal muscle mass index (SMI), number of trunk curl-ups performed within 30 seconds, knee extension strength, one-leg standing time, and walking speed were recorded. Results: In the underweight group, the number of trunk curl-ups was significantly lower than that of the normal-weight group (p = 0.011) and the correlation between knee extension strength and walking speed was relatively higher than in the normal-weight group (r = 0.612 vs. r = 0.471). In the overweight group, the SMI was significantly increased (p < 0.001), but knee extension strength was not increased (p = 0.235) compared to that of the normal-weight group. In the obese group, one-leg standing time was significantly shorter than in the normal-weight group (p = 0.016). Conclusions: Physical characteristics vary according to BMI and these findings are useful in assessing and planning interventional programs to improve and maintain physical function in elderly women. View Full-Text
Keywords: balance; body mass index; elderly; mobility; muscle strength balance; body mass index; elderly; mobility; muscle strength
MDPI and ACS Style

Nonaka, K.; Murata, S.; Shiraiwa, K.; Abiko, T.; Nakano, H.; Iwase, H.; Naito, K.; Horie, J. Physical Characteristics Vary According to Body Mass Index in Japanese Community-Dwelling Elderly Women. Geriatrics 2018, 3, 87. https://doi.org/10.3390/geriatrics3040087

AMA Style

Nonaka K, Murata S, Shiraiwa K, Abiko T, Nakano H, Iwase H, Naito K, Horie J. Physical Characteristics Vary According to Body Mass Index in Japanese Community-Dwelling Elderly Women. Geriatrics. 2018; 3(4):87. https://doi.org/10.3390/geriatrics3040087

Chicago/Turabian Style

Nonaka, Koji, Shin Murata, Kayoko Shiraiwa, Teppei Abiko, Hideki Nakano, Hiroaki Iwase, Koichi Naito, and Jun Horie. 2018. "Physical Characteristics Vary According to Body Mass Index in Japanese Community-Dwelling Elderly Women" Geriatrics 3, no. 4: 87. https://doi.org/10.3390/geriatrics3040087

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