Personal Trainer mit Zeitschaltuhr, während Sportler im Fitnessstudio Bauchmuskeln üben - Stockfoto & -bild

Female personal trainer using timer while sportsman doing exercises on fitness ball at gym

Male personal trainer helping sportswoman to do abs with ball at gym

Male personal trainer and sportswoman doing exercises with ball at gym

Cropped shot of male personal trainer looking at timer and young sportswoman exercising with dumbbells behind at gym

Male personal trainer helping sportswoman to do exercises with dumbbells at gym

Male personal trainer and sportswoman doing plank at gym

Male personal trainer helping young athletic woman to stretching on fitness mat at gym

Male trainer helping young sportswoman doing abs exercise in gym

Sportsman and sportswoman working out together in sports center

Attractive trainer supporting handsome sportsman doing push ups

Young trainer instructing handsome sportsman doing push ups

Sporty girl helping happy young man doing abs exercise on yoga mat in gym

Cropped shot of muscular bare-chested man sitting on fit ball and using smartphone in gym

Cheerful handsome sportsman sitting on fitness ball and listening music with smartphone in gym

Sportswoman doing lunges on fitness ball and sportsman help her

Young sportswoman looking at exhausted athletic man running on treadmill in gym

Young african american doctor examining injured knee of sportsman