The Differential Association between Muscle Strength and Diabetes Mellitus According to the Presence or Absence of Obesity

Background : Muscle strength can be affected by body mass index. In the present study, we compared the association between the diabetes mellitus (DM) and muscle strength according to obesity. Methods : We analyzed the association between DM and muscle strength using the Korea National Health and Nutrition Examination Survey 2014 to 2016 data weighted to represent the Korean population aged between 30 and 79 years old. Muscle strength was classified into age- and sex-specific quartiles (Qs) of handgrip strength, with the lowest Q defined as “low muscle strength (LMS).” Results : Muscle strength was positively associated with body mass index in both sexes (P