ELI5: Explain Like I'm 5

Running economy

Running economy is all about how easily and efficiently we run. It means how much energy we use when we run at a certain speed. Think of it like a car that uses more fuel if its engine isn't working properly or if it has to push through ice or snow. In the same way, if we don't run efficiently, we end up using more energy to go the same distance as someone who runs smoothly.

Running economy can be improved by practicing good running form, doing strength training exercises, and regularly running at different speeds. When we run with good form, we can use less energy to propel ourselves forward. Strength training exercises help us build the muscles we need to run more efficiently. And running at different speeds helps our bodies get used to running in every situation, making us better and more efficient runners overall.

If we have good running economy, we can run farther and faster without feeling as tired as we would if we didn't have good running economy. That's why many runners work hard to improve their running economy, so they can become better athletes and run even farther and faster.
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