Ein muskulöser Mann tritt in einer Turnhalle energisch in die Pedale eines stationären Fahrrads. - Stockfoto & -bild

Young man training on treadmill.

Group of friends in a gym on a treadmill teamwork. Young man training on treadmill.

Brunette sportsman training on treadmill in sports center

Man working out on a stationary bike in a gym

Young man in working out on stepper at gym

Young man in working out on stepper at gym

Young man training on treadmill.

Cropped view of senior woman in black leggings running on treadmill

Curvy girl adjusting treadmill in gym

Positive sporty senior woman exercising on cross trainer while in gym with towel on shoulders

Good looking senior joyous sportswoman with towel on shoulders exercising on elliptical trainer

Good looking senior cheerful woman with gray hair and headphones exercising on treadmill in gym

Good looking mature sporty woman in black attire training on treadmill actively while in gym

Cropped shot of woman working out on elliptical machine at gym

Attractive cheerful senior sportswoman in black t shirt exercising actively on elliptical trainer

Jolly athletic senior woman exercising on cross trainer while in gym with towel on shoulders

Curvy girl adjusting treadmill in sports center