Fig. 2

The correlogram showing correlations of the concerned diagnostic indexes (vertical) with muscle mass, muscle strength and physical performance (horizontal). Muscle mass was indicated by ASMI; muscle strength was indicated by handgrip strength; physical performance was indicated by 4-m walk and 5-time chair stand test. The value in each module was the corresponding Pearson’s correlation coefficient between relevant variables. The strength of correlation was represented by module color with a gradient from blue (weakest) to red (strongest). Abbreviations: GNRI, geriatric nutrition risk index; ALB, albumin; CC, calf circumference; MAC, mid-arm circumference; TST, triceps skinfold thickness; BMI, body mass index; ASMI, appendicular skeletal muscle mass index; 4-m walk, gait speed in the 4-m walking test; 5-time chair stand test, time consumed in the 5-time chair stand test