Keywords
20s, 40s, active, african american, caucasian, day, determination, effort, exercise equipment, exercising, fitness, forties, group, gym, health, healthy, horizontal, in a row, indoors, keeping fit, men, middle aged, multi ethnic, muscular, running, side view, sportswear, treadmill, twenties, women, working out, young adult, young man, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u13272910