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The Journal of Sports Medicine and Physical Fitness 2021 Mar 09

DOI: 10.23736/S0022-4707.21.12152-8

Copyright © 2021 EDIZIONI MINERVA MEDICA

lingua: Inglese

Calf circumference positively correlates with calf muscle thickness and negatively correlates with calf subcutaneous fat thickness and percent body fat in non-obese healthy young adults

Hina KINOSHITA 1, Mayu KOBAYASHI 2, Yuta KAJII 3, Ayako SATONAKA 4, 5, 6, Nobuharu SUZUKI 6

1 Department of Physical Therapy, General Aoyama Hospital, Toyokawa, Japan; 2 Department of Physical Therapy, Ichinomiya Onsen Hospital, Huehuki, Japan; 3 Heimat Okazaki Long-Term Care Facility, Okazakikai Medical Corporation, Hamamatsu, Japan; 4 Department of Physical Therapy, Biwako Professional University of Rehabilitation, Higashiomi, Japan; 5 Graduate School of Medicine, Nagoya University, Nagoya, Japan; 6 Department of Physical Therapy, Tokoha University, Hamamatsu, Japan


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BACKGROUND: Calf circumference is measured for assessing sarcopenia, nutrition status, percent body fat or obesity. However, there has been no study that investigated the relationship between calf circumference and calf subcutaneous fat tissue thickness. Therefore, the purpose of this study was to investigate the relationship between calf circumference, calf muscle thickness, and calf subcutaneous fat tissue thickness in nonobese healthy young adults.
METHODS: The study participants were non-obese 22 women (20.1 ± 0.8 years) and 21 men (20.0 ± 0.8 years). The right calf circumference was measured in prone position at the point where the circumference was maximal by visual recognition using a measuring tape. Then, thickness of calf subcutaneous fat tissue and calf muscles were measured with an ultrasonic diagnostic equipment.
RESULTS: There was a positive relationship between calf circumference and calf muscle thickness both in women (r = 0.58, P < 0.01) and men (r = 0.46, P < 0.05), negative relathionship between calf circumference and calf subcutaneous fat tissue thickness both in women (r = -0.43, P < 0.05) and men (r = -0.67, P < 0.001), no correlation between calf circumference and percent body fat both in women (r = 0.04, P = 0.87) and men (r = 0.41, P = 0.06), and a negative relationship between calf subcutaneous fat tissue thickness and percent body fat both in women (r = -0.48, P < 0.05) and men (r = -0.46, P <
0.05).
CONCLUSIONS: Our present study showed that a larger calf indicated larger calf muscle thickness, and largely different from previous studies, a lower calf subcutaneous fat tissue thickness. That is because when the calf circumference increases, calf subcutaneous fat tissue thickness should be thinner to keep the percent body fat equal in non-obese healthy young adults. The finding will help to get a better understanding of the nature of the calf.


KEY WORDS: Anthropometry; Obesity; Excercise; Metabolic syndrome

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