三頭筋
abdominals
abs
action
activity
adult
athletic
background
biceps
body
bodybuilder
bodybuilding
caucasian
competition
couple
diet
endurance
energy
exercise
fitness
grey working
gym
handsome
health
heavy
horizontal
human
lifestyle
male
man
middleage
muscle
muscular
natural
posing
power
powerlifting
shaker
sport
strength
strong
torso
trainer
training
weight
weightlifting
woman
workout
young