Ключевые слова: abdominal, active, adult, arms, athlete, body, bodybuilder, caucasian, challenge, concentration, control, cross, dedication, determination, exercise, fit, floor, focused, goals, guy, gym, healthy, hobby, indoors, leisure, lifestyle, male, man, motivation, muscle, muscular, person, physical, plank, position, power, practice, progress, push, raised, recreational, sport, straight, strength, strong, training, up, working, workout, young,