adolescence
abs defined
asia face
asian man
athletic field
balance arm
beautiful girl
beauty woman
bench press
body strength
caucasian youth
chair
cheerful smile
commitment
discipline
dumbbell row
earnestness
endurance
equal
exercise room
fitness equipment
flexible muscles
guidance
gym class
happy time
health care
healthy concept
holiday vacation
introduction
japan
korea
lifestyle leisure
member vip
muscle contraction
muscular build
practice fluently
resilient
safe
shoulder muscles
slender waist
sport clothing
stature
stretching exercises
strong muscle
talking
teaching assistant
trainer coach
two people
weight lifting
young adult