三頭筋
abdominal
abdominal muscle
abs
adult
aerobics
athlete
biceps
body building
body building exercises
body conscious
bodybuilder
bodybuilding
cable back
caucasian
dramatic lighting
fit
flexing muscles
gym
health and fitness
health club
healthy eating
healthy lifestyle
human muscle
indoors
male
man
men
muscular build
posing
power
relaxation exercise
sport
sports and fitness
sports clothing
sports training
steel cable
strength
symmetry
the human body
weight training
young man