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Geriatr Gerontol Int. 2015 Aug;15(8):969-76. doi: 10.1111/ggi.12377. Epub 2014 Sep 20.

Calf circumference as a surrogate marker of muscle mass for diagnosing sarcopenia in Japanese men and women.

Author information

1
Graduate School of Sport Sciences, Waseda University, Saitama, Japan.
2
Department of Health Promotion and Exercise, National Institute of Health and Nutrition, Tokyo, Japan.
3
Japan Society for the Promotion of Science, Tokyo, Japan.
4
College of Sport and Health Science, Ritsumeikan University, Shiga, Japan.
5
Faculty of Sport Sciences, Waseda University, Saitama, Japan.

Abstract

AIM:

To examine the relationship between calf circumference and muscle mass, and to evaluate the suitability of calf circumference as a surrogate marker of muscle mass for the diagnosis of sarcopenia among middle-aged and older Japanese men and women.

METHODS:

A total of 526 adults aged 40-89 years participated in the present cross-sectional study. The maximum calf circumference was measured in a standing position. Appendicular skeletal muscle mass was measured using dual-energy X-ray absorptiometry, and the skeletal muscle index was calculated as appendicular skeletal muscle mass divided by the square of the height (kg/m(2)). The cut-off values for sarcopenia were defined as a skeletal muscle index of less than -2 standard deviations of the mean value for Japanese young adults, as defined previously.

RESULTS:

Calf circumference was positively correlated with appendicular skeletal muscle (r = 0.81 in men, r = 0.73 in women) and skeletal muscle index (r = 0.80 in men, r = 0.69 in women). In receiver operating characteristic analysis, the optimal calf circumference cut-off values for predicting sarcopenia were 34 cm (sensitivity 88%, specificity 91%) in men and 33 cm (sensitivity 76%, specificity 73%) in women.

CONCLUSIONS:

Calf circumference was positively correlated with appendicular skeletal muscle mass and skeletal muscle index, and could be used as a surrogate marker of muscle mass for diagnosing sarcopenia. The suggested cut-off values of calf circumference for predicting low muscle mass are <34 cm in men and <33 cm in women.

KEYWORDS:

Japanese; anthropometric; body composition; dual-energy X-ray absorptiometry; muscle strength

Comment in

PMID:
25243821
DOI:
10.1111/ggi.12377
[Indexed for MEDLINE]

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