ELI5: Explain Like I'm 5

Oxygen pulse

Okay kiddo, here's a simple explanation of the oxygen pulse!

Our body needs oxygen to function, kind of like how a battery needs electricity to work. When we breathe in, we take in oxygen and send it to our muscles through our blood. The oxygen pulse is a way to measure how efficient our body is at using oxygen during exercise.

Think of it like a car's engine. When a car's engine is working harder, it needs more fuel to keep running. Our muscles are like the engine, and oxygen is the fuel. The more oxygen our muscles can use during exercise, the more efficient our body is at working out.

To measure the oxygen pulse, doctors and scientists look at the amount of oxygen our body uses per heartbeat. This show how much oxygen our body is using to fuel our muscles during exercise. The higher the oxygen pulse, the better our body is at using oxygen when it exercises.

So, in short, oxygen pulse is a way to measure how efficient our body is at using oxygen when we exercise, kind of like how a car's engine uses fuel. The higher the oxygen pulse, the better our body is at using oxygen when it works out!