Ключевые слова: aerobics, african, athletic, black, body, cardio, cheerful, elliptical, equipment, exercise, exercising, filters, fit, fitness, friends, group, gym, happy, health, healthy, instructor, international, lifestyle, loss, machine, man, multiethnic, multinational, multiracial, running, smiling, sport, toned, trainer, training, treadmill, walking, warmup, weight, women, working, workout, young,