Ключевые слова: 2014, action, active, activity, adult, athlete, athletic, competition, endurance, energy, ethnicity, exercise, exercising, fit, fitness, health, healthy, jog, jogger, jogging, legs, leisure, lifestyle, line, marathon, men, motion, outdoor, outside, people, person, race, recreation, run, runner, runners, running, singapore, speed, sport, sports, track, training, wellbeing, years, young,