Gespierde sportman in koptelefoon die op een loopband draait tijdens UITHOUDINGS test in de sportschool - Stockfoto’s en -afbeeldingen

Smiling muscular sportsman in headphones running on treadmill during endurance test in gym

Muscular sportsman in headphones running on treadmill during endurance test in gym

Cropped view of sportsman with smartphone running on treadmill during endurance test in gym

Sportsman with smartphone running on treadmill during endurance test in gym

Handsome sportsman with electrodes running on treadmill during endurance test in gym with daylight

Sportsman with smartphone running on treadmill during endurance test in gym

Happy handsome sportsman with electrodes on elliptical during endurance test in gym

Muscular sportsman in headphones running on treadmill during endurance test in sports center

Doctor at desk conducting endurance test with sportsman in gym

Beautiful doctor with digital tablet near shirtless sportsman during endurance test

Partial view of doctor conducting endurance test with sportsman in gym

Cropped shot of muscular tattooed sportsman using digital tablet in gym

Cheerful overweight girl in earphones holding smartphone while listening music

Cropped view of sportsman training on elliptical machine at gym

Attractive overweight girl holding smartphone while listening music in earphones

High angle view of muscular bare-chested african american man in earphones sitting and using smartphone in gym

Shirtless bearded sportsman with lower back pain on grey

Cropped view of sportsman training on treadmill at sports center