Lucille has been told she needs to improve her heart health and she is ready to get started. There are many activities she is considering for her new tou tune,but she knows she must first calculate her target heart rate zone. When is the best time for her to begin gathering data to do this calculations?

Respuesta :

when you are calm and relaxed if you are all hyped up your heart rate is going to increase and blow the test then count the beats in 17 seconds and put it to a min

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