Heart rate is monitored using a heart rate monitor. When exercising its hard to know what level of fitness your body is at or how far more you can push yourself, using a heart rate monitor you can see and monitor your fitness.It’s a great way to maintain and control your workouts, you can push yourself to your limit without losing control.Heart rate monitors is that its very precise with the levels, between 60-70% of are maximum heart rate is the best fat burning zone.The best way to work out your heart rate is a simple formula;220 – your ageExampleA women aged 33 needed to know her MHR- maxium heart rate220 – 33 = 187 MHRIt couldn’t be any easier, now if you need to find out 90% of her MHR187 x 0.9 = 168.3 90% MHRWhy not take a look at our heart rate monitors here. A recent study shows that undergoing a interval fat burning cardio vascular exercise can gain more benefits to weight lose and muscular gain. Rather than keeping in the fat burning zone when your exercising at 60%-70% MHR, try interval training it’s a prefect lard busting exercise and see see better results. Also it keeps you interested in your workout as doing the same rueteen over and over can be boring.