Ключевые слова: abdominal, active, athlete, athletic, beautiful, being, body, class, core, crunches, crunches exercise, determination, effort, energy, exercise, female, fitness, girl, gym, hard, health, indoor, instructor, leg, leisure, lifestyle, male, man, motivation, muscle, muscular, people, physical, power, shape, smile, sport, sportsman, sportswear, sporty, strength, studio, trainer, training, up, upper, weight, workout, yoga, young,