How does stretching your muscles work exactly?
In: Biology
Imagine two back-to-back letter E’s. There are protein complexes shaped kinda like that where the horizontal lines sticking out are zigzags of molecules that overlap with the next back-to-back E shaped complex. When they pull toward each other to overlap more, that’s a muscle contracting. When they move apart, it’s stretching the muscle.
Imagine a bunch of people standing in a line holding hands with their arms stretched out in a T pose. If they all pull their arms in at once, they’d shrink the line significantly, and the opposite would make the line longer. This is how the muscle stretches/contracts 🙂
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