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Calf Circumference as a Simple Screening Marker for Diagnosing Sarcopenia in Older Korean Adults: the Korean Frailty and Aging Cohort Study (KFACS).
J Korean Med Sci 2018; 33(20):e151JK

Abstract

Background

The purpose of this study was to explore the optimal cut-off point of calf circumference (CC) as a simple proxy marker of appendicular skeletal muscle mass (ASM) and sarcopenia in the Korean elderly and to test the criterion-related validity of CC by analyzing its relationships with the physical function.

Methods

The participants were 657 adults aged 70 to 84 years who had completed both dual energy X-ray absorptiometry (DXA) and physical function test in the first baseline year of the Korean Frailty and Aging Cohort Study.

Results

ASM and skeletal muscle mass index (SMI) were correlated positively with CC (male, ASM, r = 0.55 and SMI, r = 0.54; female, ASM, r = 0.55 and SMI, r = 0.42; all P < 0.001). Testing the validity of CC as a proxy marker for low muscle mass, an area under the curve (AUC) of 0.81 for males and 0.72 for females were found and their optimal cut-off values of CC were 35 cm for males and 33 cm for females. In addition, CC-based low muscle groups were correlated with physical functions even after adjusting for age and body mass index. Also, the cut-off value of CC for sarcopenia was 32 cm (AUC; male, 0.82 and female, 0.72).

Conclusion

The optimal cut-off values of CC for low MM are 35 cm for males and 33 cm for females. Lower CC based on these cut-off values is related with poor physical function. CC may be also a good indicator of sarcopenia in Korean elderly.

Authors+Show Affiliations

Department of Medicine, Graduate School, Kyung Hee University, Seoul, Korea.Department of Biomedical Science and Technology, College of Medicine/East-West Medical Research Institute, Kyung Hee University, Seoul, Korea.Department of Preventive Medicine and Public Health, Ajou University School of Medicine, Suwon, Korea.Department of Family Medicine, Kyung Hee University School of Medicine, Seoul, Korea.Department of Preventive Medicine and Public Health, Kyung Hee University School of Medicine, Seoul, Korea.Elderly Frailty Research Center, Department of Family Medicine, College of Medicine, Kyung Hee University, Seoul, Korea.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29760608

Citation

Kim, Sunyoung, et al. "Calf Circumference as a Simple Screening Marker for Diagnosing Sarcopenia in Older Korean Adults: the Korean Frailty and Aging Cohort Study (KFACS)." Journal of Korean Medical Science, vol. 33, no. 20, 2018, pp. e151.
Kim S, Kim M, Lee Y, et al. Calf Circumference as a Simple Screening Marker for Diagnosing Sarcopenia in Older Korean Adults: the Korean Frailty and Aging Cohort Study (KFACS). J Korean Med Sci. 2018;33(20):e151.
Kim, S., Kim, M., Lee, Y., Kim, B., Yoon, T. Y., & Won, C. W. (2018). Calf Circumference as a Simple Screening Marker for Diagnosing Sarcopenia in Older Korean Adults: the Korean Frailty and Aging Cohort Study (KFACS). Journal of Korean Medical Science, 33(20), pp. e151. doi:10.3346/jkms.2018.33.e151.
Kim S, et al. Calf Circumference as a Simple Screening Marker for Diagnosing Sarcopenia in Older Korean Adults: the Korean Frailty and Aging Cohort Study (KFACS). J Korean Med Sci. 2018 May 14;33(20):e151. PubMed PMID: 29760608.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Calf Circumference as a Simple Screening Marker for Diagnosing Sarcopenia in Older Korean Adults: the Korean Frailty and Aging Cohort Study (KFACS). AU - Kim,Sunyoung, AU - Kim,Miji, AU - Lee,Yunhwan, AU - Kim,ByungSung, AU - Yoon,Tai Young, AU - Won,Chang Won, Y1 - 2018/04/26/ PY - 2017/12/26/received PY - 2018/03/26/accepted PY - 2018/5/16/entrez PY - 2018/5/16/pubmed PY - 2018/9/22/medline KW - Aged KW - Anthropometry KW - Korea KW - Muscle Mass KW - Sarcopenia SP - e151 EP - e151 JF - Journal of Korean medical science JO - J. Korean Med. Sci. VL - 33 IS - 20 N2 - Background: The purpose of this study was to explore the optimal cut-off point of calf circumference (CC) as a simple proxy marker of appendicular skeletal muscle mass (ASM) and sarcopenia in the Korean elderly and to test the criterion-related validity of CC by analyzing its relationships with the physical function. Methods: The participants were 657 adults aged 70 to 84 years who had completed both dual energy X-ray absorptiometry (DXA) and physical function test in the first baseline year of the Korean Frailty and Aging Cohort Study. Results: ASM and skeletal muscle mass index (SMI) were correlated positively with CC (male, ASM, r = 0.55 and SMI, r = 0.54; female, ASM, r = 0.55 and SMI, r = 0.42; all P < 0.001). Testing the validity of CC as a proxy marker for low muscle mass, an area under the curve (AUC) of 0.81 for males and 0.72 for females were found and their optimal cut-off values of CC were 35 cm for males and 33 cm for females. In addition, CC-based low muscle groups were correlated with physical functions even after adjusting for age and body mass index. Also, the cut-off value of CC for sarcopenia was 32 cm (AUC; male, 0.82 and female, 0.72). Conclusion: The optimal cut-off values of CC for low MM are 35 cm for males and 33 cm for females. Lower CC based on these cut-off values is related with poor physical function. CC may be also a good indicator of sarcopenia in Korean elderly. SN - 1598-6357 UR - https://www.unboundmedicine.com/medline/citation/29760608/Calf_Circumference_as_a_Simple_Screening_Marker_for_Diagnosing_Sarcopenia_in_Older_Korean_Adults:_the_Korean_Frailty_and_Aging_Cohort_Study__KFACS__ L2 - https://jkms.org/DOIx.php?id=10.3346/jkms.2018.33.e151 DB - PRIME DP - Unbound Medicine ER -