Ever wondered why people exercise with heart rate...and what exactly a heart rate monitor Is? This video answers those questions, showing how training with heart rate provides motivation to workout smarter, track your progress, get feedback and reach your personal fitness goals. Plus, we demonstrate what exactly a Polar training computer is and how it works. In this first half, we're speaking with a busy mom - a mother of three with a full-time job - who's trying to get back into shape and needs some motivation.
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