Heart Rate Monitors - ????

clare9289
clare9289 Posts: 24
edited September 30 in Fitness and Exercise
Hi Guys,

Can anyone explain to me how a heart rate monitor works? They seem to be very expensive, so I'm wondering if they're worth it! Do they record calorie burning accurately? Do you just wear a band around your wrist or something? Any advice on whether it would be useful or not would be greatly appreciated!

Ta muchly :)

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