Ключевые слова: 20s, 2530, 4045, 40s, 6065, 60s, activity, adult, aged, american, athletic, ball, caucasian, competition, court, double, doubles, elderly, european, exercise, fitness, game, hobby, male, man, motivation, net, outdoor, paddle, padel, play, player, playground, playing, pose, posing, practicing, racket, racquet, recreation, serve, serving, sport, sporty, technique, tournament, training, vitality, workout, young,