Brief history of power meter
Why power is important
Why heart rate is important
Heart rate is collected by a chest strap that relieves the electrical impulse generated by each contraction of the cardiac muscles and sends it to the cycle computer. Memorized data can be downloaded at the end of training or racing and can be visualized in correlation to other parameters such as power, speed, cadence, elevation, speed and temperature.
Why power meter AND heart rate are important
Using the simple analogy between HR and RPM it will be easy to understand that in normal conditions the higher is the HR the more calories will be used. On the opposite, heart rate that is “lazy” to raise means that the red light of the gasoline level is flashing and we are about to run on empty of carbo, the next scenario will be a significant drop of power output.
Off the bike analysis will give a complete picture of the session/race. We’ll see if the HR and power have been constant during the climbs or if there’s been a significant decrease which is a sign of fatigue and glycogen depletion. We can also check which has been the highest HR value and the average 20’ power. Average HR of the session indicates cumulative load on the body and will helpful to indicate recovery time: the higher and for the longer time HR has been, the longer will be the recovery.