Ключевые слова: abdominal, abs, activity, adult, aerobic, background, body, caucasian, computer, concept, crunch, curl up, domestic, empty space, exercise, female, fit, fitness, free space, girl, gym, healthcare, healthy, high angle, home, indoors, internet, lady, laptop, leisure, lifestyle, loss, millennial, muscle, online, people, smile, sport, sporty, training, video, watching, weight, wellbeing, wellness, white, woman, workout, young,