Ключевые слова: abdomen, above, abs, action, active, adult, athlete, athletic, body, challenge, club, core, endurance, energy, exercise, exercising, female, fit, fitness, floor, growth, gym, health, healthy, indoor, motivation, muscle, muscles, muscular, people, person, physical activity, player, routine, serious, sit, sit ups, sport, sports, sportswear, sporty, stomach, strength, strong, train, training, wellness, woman, workout, young,