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<span>Heart Rate Reserve, HRR. Heart rate reserve (HRR) is the difference between resting heart rate (HR<span>rest) and maximum heart rate</span> (HRmax). Heart rate reserve is used when determining exercise heart rates. The Karvonen formula is used to calculate exercise heart rate at a given percentage training intensity.</span>
Answer:
social influences.
economic influences.
healthy lifestyles.
fashion.
major events, Olympic and Paralympic games.
disability.
race.
role of media, television, radio, internet, mobile phone, newspapers, magazines.
Explanation: