三頭筋
abdominal
abdominal muscle
abs
adult
athlete
athletic
biceps
body building
bodybuilder
bodybuilding
caucasian
competition
day
fit
flexing muscles
guy
handsome
human muscle
male
man
model
muscular build
nature
on
outdoors
outside
park
physical
posing
power
race
six pack
sport
sports and fitness
sports training
sportswear
strength
strong
sunny
track
track suit
tracksuit
young man