Ключевые слова: abdomen, abdominal, abs, activity, beautiful, bicycle, bodyweight, class, core, criss, crisscross, cross, crunches, doing, exercise, female, fit, fitness, flat, girl, gym, gymnastics, health, healthy, lady, lift, loss, muscle, oblique, pack, people, person, pilates, pose, position, posture, practice, self, shape, six, slim, sport, stomach, strength, training, waist, warmup, weight, woman, workout,