三頭筋
abdominal
abdominal muscle
abs
adult
athlete
back
biceps
body building
body building exercises
bodybuilder
bodybuilding
caucasian
chin
flexing muscles
guy
gym
handsome
health and fitness
health club
healthy eating
human muscle
indoors
lifestyles
male
man
muscular build
posing
power
pull
relaxation exercise
sport
sports and fitness
sports clothing
sports training
strength
strong
symmetry
tattoo
the human body
ups
waist
weight training