I’ve yet to meet an athlete who isn’t intrigued by the metrics reported on their sports device.  Thanks to wearable watches and technological advances, we are attuned to data such as resting heart rate, pace, wattage, sleep metrics, calories burned, etc.  Much of this data is beneficial for training and recovery purposes. However, calories burned during an activity can create confusion. So, before we jump into deciphering caloric output during training and how to use it, let’s take a step back and assess the components that affect metabolism.

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