機器
三頭筋
40s
abdominal
abdominal muscle
abs
adult
athlete
back
biceps
body building
body building exercises
bodybuilder
bodybuilding
caucasian
chest
fit
flexing muscles
guy
gym
handsome
health and fitness
healthy eating
healthy man
human muscle
indoors
lifestyles
male
mature
middle age
muscular build
posing
power
sport
sports training
strength
strong
symmetry
weight training
young