Ключевые слова: 60s, active, active lifestyle, activity, adult, ai, athlete, ball, competition, court, elderly, exercise, exercising, female, fit, fitness, fun, happy, health, healthy, healthy lifestyle, hobby, holding, horizontal, leisure activity, lifestyle, man, mature, mature adult, motion, old, person, playing, racket, racquet, recreation, retirement, senior, senior adult, senior women, smiling, sport, standing, tennis, tennis ball, training, vitality, woman,