Back view of multiethnic girls running on treadmill in gym. Concept of healthy lifestyle. Young caucasian and black women wearing sportswear doing cardio exercise. Modern fitness center at sunny day - Stock Photo & Image

Back view of multiracial girls running on treadmill in gym. Concept of healthy lifestyle. Young caucasian and black women wearing sportswear doing cardio exercise. Modern sports center at sunny day

Back view of african girl running on treadmill in gym. Concept of healthy lifestyle. Curly woman wearing sportswear doing cardio exercise. Interior of sport club in sunny day

Group of Athletic People Running on Treadmills, Doing Fitness Exercise. Athletic and Muscular Women and Men Actively Workout in the Modern Gym. Sports People Workout in Fitness Club. Side View

Athletes engage in modern treadmills in the bright gym. In front of them is a large bright window. Athletes are focused on running.

Group of multiethnic girls running on treadmill in gym. Concept of healthy lifestyle. Young caucasian and black women wearing sportswear doing cardio exercise. Modern fitness center at sunny day

Horizontal shot of athletic mature woman and man exercising on treadmills, back view on panoramic windows background. Elderly couple having converstaion while walking on machine. Active healthy life.

Full-length shot of three teens, boy and girls warming up, exercising with female trainer before workout in gym. Sport, healthy lifestyle, active childhood concept. Horizontal shot. Selective focus

Motion shot, back view senior couple training on treadmills in gym, backlit photo on light windows background. Active senior couple exercising together. Contrasting photo.

Full-length shot of female trainer controlling, looking after kids, while they are jumping rope in gym. Sport, healthy life, physical education concept. Horizontal shot. Selective focus

Full-length shot of a boy warming up, exercising together with other kids and female trainer in gym. Sport, healthy lifestyle, active childhood concept. Horizontal shot. Selective focus. Low angle

Full length shot of kids working out using resistance band in gym together with female trainer. Sport, healthy lifestyle, physical education concept. Horizontal shot. Side view

Backview elderly man listening to music via headphones and running on treadmill in health club with large windows. Empty gym with elderly man running on treadmill. Enjoying the moment concept.

Full-length shot of a boy warming up, exercising together with other kids and female trainer in gym. Sport, healthy lifestyle, active childhood concept. Horizontal shot. Selective focus. Low angle