five-year-old boy is engaged with dumbbells

action activity background body building caucasian child childhood club defense detail dumb dumbbell dumbbells engage engaged equipment excersize exercise expression fitness form gym gymnastic hand health healthy human isolated kid learning leisure length lifestyle lifestyles lifting little male nursery one physical play playful position preschooler preteen protection recreational safety self set shape sport sporty studio therapy toddler training weight weightlifting weights wellbeing wellness white working workout year young youth