When working out with p90x or any other program it is very important to know your target heart rate. Keeping your heart rate within your target zone for the duration of your workout will help you burn more fat, and I know we all want that. Finding your target heart rate is easy. Use this link below to figure out yours.
Find your target heart rate.
Also it is very helpful to get a heart rate monitor, this will allow you to know your heart rate immediately and not have to stop working out to figure out if you are in the zone.
Heart Rate Monitor
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