Ключевые слова: 18 to 19 years, 1819 years, 20 to 24 years, 2024 years, 25 to 29 years, 2529 years, active lifestyle, arched, arched back, arching back, asian ethnicity, balance, balancing, ball, bending over, bending over backwards, blue sky, both male and female, caucasian ethnicity, clear sky, crab position, day, effort, exercise ball, exercise equipment, exercising, female, flexibility, flowing water, friendship, hands on floor, healthy lifestyle, horizon, horizon over water, jump rope, jumping, leg raised, lifestyles, lumber, male, man, may 2016 release, men, mid air, mooring post, numeral, ocean, orthographic symbol, outdoors, pier, plank, planks, relationship, sea, skipping rope, sky, small group of people, sports clothing, sportswear, star images, strength, strength training, surface level, symbol, teamwork, three people, using, vitality, wearing, well being, wellbeing, woman, women, wood, young adult, young adult woman, young man, young men, young woman, young women,