Ключевые слова: 70s, action, active seniors, activity, adult, athlete, backhand, competitive sport, copy space, exercising, green, healthy lifestyle, horizontal, individual sports, lifestyles, male, mature adult, men, motion, moving activity, old, one man only, one person, only senior man, only senior men, outdoors, people, physical activity, playing, practicing, racket sport, recreational pursuit, retirement, selective focus, senior adult, senior men, sport, sports activity, sports clothing, sports training, sunlight, sunny, tennis, tennis ball, tennis outfit, tennis racket, training, vitality, wellbeing,