Een senior man met een jonge mannelijke trainer kracht training oefening in de sportschool doet. - Stockfoto’s en -afbeeldingen

Muscular young man is exercising in the gym with his personal fitness instructor.

Bearded sportsman exercising on fitness machine in sports center

Man working out in gym on fitness machine

Senior sportsman lifting barbell with trainer in sport center

Young man in modern crossfit gym, standing. Rear view. Copy space.

Young handsome fit man in gym working out, lifting bar of barbell, flexing muscles.

Young man in modern crossfit gym, standing. Rear view. Copy space.

Young hispanic fitness man in gym working on butterfly fitness machine with weights, flexing muscles

Young fit man working out in gym. A boy in a plank holding onto a climbing rope.

Young fit men friends in gym doing push ups on dumbbells, measuring time on smartwatch.

Young fit couple in modern crossfit gym exercising. Woman doing pull ups, man carrying her on his shoulders.