sporty fit muscular young serious woman doing strength workout on the shoulders, biceps and arms in sport bra holding dumbbells on

active adult arm arms athlete athletic back background banner biceps black blades body bodybuilder bra caucasian closeup color dumbbell dumbbells exercise face female fit fitness girl gym hands happy health heavy holding lifestyle lifting model muscles muscular one people person portrait profile serious sexy shoulder shoulders smile sport sporty stomach strength stretching strong studio toned torso trainer training view weightlifting weights white woman workout young