Ключевые слова: activity, adult, alone, athlete, athletic, bent knee, bouncing, fast, finish, fit, fit training, fitness, freetime, hard training, hobby, just feet, legs, life target, muscle, own target, pain, person, personal target, ready, real, real life, real people, rubber track, run, runner, running track, shorts, skin, skin care, soft surface, solid muscle, starting line, starting possition, success, training, veins and arteries, woman, woman runs, young,