Ключевые слова: active, activity, adult, age, arm, background, bicep, caucasian, center, centimeter, cheerful, club, concept, couple, elderly, exercise, fit, fitness, flexing, fun, grandfather, grandmother, gym, hand, happy, health, healthy, indoors, leisure, lifestyle, man, measurement, measuring, old, older, pensioner, people, person, progress, result, retired, retirement, senior, smiling, sport, sportswear, tape, tapemeasure, woman, workout,