Korean J Sports Med.  2018 Mar;36(1):15-23. 10.5763/kjsm.2018.36.1.15.

Association between Grip Strength as Diagnostic Criteria of Sarcopenia and Health-Related Quality of Life in Korean Elderly

Affiliations
  • 1Department of Physical Education, College of Education, Seoul National University, Seoul, Seoul, Korea. kys0101@snu.ac.kr
  • 2Institute of Sport Science, Seoul National University, Seoul, Korea.

Abstract

PURPOSE
This study aimed to investigate the association between grip strength as diagnostic criteria of sarcopenia and health-related quality of life (HRQL) in Korean elderly.
METHODS
Data were obtained through the 2014–2015 Korea National Health and Nutrition Examination Survey (6th KNHANES), targeting a total of 3,096 elderlies (over 60 years old). Grip strength was measured and divided into four quartiles, and the lower quartile was used as the muscle strength criterion for sarcopenia. The EuroQol-5 Dimension (EQ-5D) questionnaire was used to measure HRQL and classified as poor HRQL when the EQ-5D index was less than 1. Complex sample design logistic regression was used to evaluate the odds ratio (OR) and 95% confidence interval (CI) of prevalence of poor HRQL associated with sarcopenia.
RESULTS
When confounding factors are adjusted, the OR (95% CI) of prevalence of poor HRQL for male and female elderlies in the group with the highest strength, as compared to the group with the lowest strength were 0.605 (0.413–0.893), and 0.406 (0.297–0.590), respectively.
CONCLUSION
Muscle strength can be considered to be more effective in assessing the health status of the elderly compared to muscle mass. In particular, this is acceptable given the cost of measurement and the clarity as a health goal.

Keyword

Hand strength; Korea National Health and Nutrition Examination Survey; Quality of life; Sarcopenia
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