Monitoring your heart rate during exercise is important for several reasons, including making sure you’re in the target heart rate for conditioning yourself. Monitor your heartbeat rate with advice from aprofessional personal trainer in this free video on exercise and fitness. Expert: David Dubail Contact: www.dubailfitness.com Bio: David Dubail is a professional personal trainer and the owner of Dubail Fitness Institute in Miami, Florida. Filmmaker: Paul Muller