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Reference values for hand grip strength in the South Korean population.

Reference values for hand grip strength in the South Korean population.
Author Information (click to view)

Kim CR, Jeon YJ, Kim MC, Jeong T, Koo WR,


Kim CR, Jeon YJ, Kim MC, Jeong T, Koo WR, (click to view)

Kim CR, Jeon YJ, Kim MC, Jeong T, Koo WR,

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PloS one 2018 04 0613(4) e0195485 doi 10.1371/journal.pone.0195485
Abstract
OBJECTIVE
To establish reference values for hand grip strength (HGS) in a healthy Korean population and to identify the dependent anthropometric variables that affect HGS.

METHODS
Based on the sixth Korea National Health and Nutrition Examination Survey from 2014 to 2015, we analyzed the HGS data of 7,969 South Koreans. Individuals with specific chronic diseases and who reported poor subjective health status were excluded to ensure a healthy population sample. Means with standard deviations (SDs) and 95% confidence intervals were calculated for each 5-year interval starting from 10 years of age. To determine the relationship between HGS and anthropometric variables, we performed correlation analyses between HGS and height, weight, and body mass index (BMI). Additionally, based on these findings, the cut-off value for low HGS was presented by deriving -2SD values of healthy young adults as recommended by the European Working Group on Sarcopenia in Older People.

RESULTS
The mean age and BMI of men and women were 38.3 and 38.2 years and 23.8 and 22.4 kg/m2, respectively. Mean HGS of the dominant hand in men and women was 39.5 and 24.2 kg, respectively. The peak in HGS was at 35-39 years of age, after which HGS decreased in both sexes. HGS was significantly correlated with height, weight, and BMI. The cut-off values for weak HGS were < 28.9 and < 16.8 kg in men and women, respectively. CONCLUSION
These results provide useful reference values to assess HGS in patients who undergo hand surgery or who have various diseases that affect HGS. Moreover, a cut-off value for low HGS may help in defining sarcopenia among the Korean population.

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