Ключевые слова: activity, athletic, background, beat, bottle, cardio, cardiology, care, checking, color, composition, counting, device, different, drink, dumbbells, electronic, equipment, exercise, fitness, flat, gadget, green, health, heart, items, lay, lifestyle, many, measurement, measuring, nobody, object, oximeter, pulse, rate, rhythm, rope, skipping, sport, sports, sporty, top, training, view, water, wooden, workout,