athletic
/ˌæθ(ə)ˈlɛdɪk/
adjective
Physically strong, fit, and active.
big, muscular, athletic boys
muscular,muscly,sturdy,strapping,well built,powerfully built,strong,powerful,robust,able-bodied,vigorous,hardy,lusty,hearty,hale and hearty,brawny,burly,broad-shouldered,thickset,Herculean