Un entrenador masculino demuestra técnicas de autodefensa a una mujer en un entorno de gimnasio. - Foto e imágenes de stock

The more time you spend at the gym, the more time you gain. two sporty young people using kettlebells while working out at the gym

Cropped shot of an attractive young female boxer working out with her personal trainer in a gym.

Fitness couple in sportswear doing squat exercises at gym

Upping their power and endurance together. two sporty young people exercising with kettlebells in a gym

Youll gain strength with every swing. two sporty young people exercising with kettlebells in a gym

Personal trainer holding clipboard while assisting of attractive sportswoman exercising with resistance band

Smiling athletic couple looking at each other in gym

Sportswoman in top and shorts stretching legs on fitness mat in sports center

Smiling sportswoman reaching sneaker while doing stretching exercise in sport center

Young adult african american woman clenching hands and doing lunges in gym

Sportive woman doing seated side bend exercise while stretching in sports center

Sportive woman in sports bra and shorts sitting on fitness mat with crossed legs and warming up neck

Sportswoman in shorts and top doing knee to elbow exercise on fitness mat

Cropped view of african american woman touching leg, sitting on fitness mat

Young sportswoman warming up neck while sitting on fitness mat with closed eyes

Sportswoman in top and shorts sitting on fitness nat with crossed legs and warming up neck