Ключевые слова: achievement, active, american football, athletic, caucasian, caucasian ethnicity, chronometer, coach, development, exercise, fit, fitness, flexibility, flexible, football, hand, health, healthy, holding, improvement, lifestyle, looking at camera, male, man, measure, medium group of people, mid adult, mid adult men, muscle, muscular, part of, physical, player, progress, real people, sport, sportswear, strength, strong, team strip, timer, toned, training, uniform, white background, woman, young adult, young men,