Skeletal Muscle Mass Indices in Healthy Young Mexican Adults Aged 20–40 Years: Implications for Diagnoses of Sarcopenia in the Elderly Population

Table 1

Anthropometry and body composition components of healthy young Mexican adults.

Variables	Men (𝑛=136)	Women (𝑛=80)	Both men and women
Age, (years)	27.3±5.0	28.2±5.6	27.6±5.2
Weight, (kg)	77.9±13.0	60.4±8.5^∗	71.5±14.3
Height, (m)	1.74±0.1	1.61±0.04^∗	1.69±0.08
BMI, (kg/m^2)	25.7±3.6	23.2±3.1^∗	24.7±3.6
ASM, (kg)	23.0±3.4	15.9±1.6^∗	20.1±4.7
ASMI, (kg/m^2)	7.5±0.8	5.8±0.5^∗	6.6±1.1
TBSM, (kg)	26.5±4.1	16.9±1.9^∗	22.9±5.7
TBSMI, (kg/m^2)	8.6±1.0	6.5±0.6^∗	7.8±1.3
FFM, (kg)	52.9±7.1	34.2±3.2^∗	46.0±10.8
Fat mass, (kg)	20.5±8.5	22.2±6.6^∗∗	21.2±4.9
Truncal fat, (kg)	13.1±5.4	11.3±3.8^∗∗	12.4±7.9

BMI: body mass index; ASM: appendicular skeletal muscle mass; ASMI: appendicular skeletal muscle mass index; TBSM: total-body skeletal muscle mass; TBSMI: total-body skeletal muscle mass index; FFM: fat-free mass (total lean tissue plus total bone mineral content); ^∗𝑃<0.001; ^∗∗𝑃<0.05.