Ключевые слова: 50s, athlete, bout, boxer, boxing, caucasian, competition, durable, empty nester, exercise, father, fighter, fit, fitness, grapple, healthy, hold, kick boxing, male, man, mat, match, mature, mature adult, midlife, orange, parent, pin, power, punch, referee, ring, singlet, sport, strength, strong, tournament, training, wisdom, wrestler, wrestling,