Taking creatine might help your muscles keep using sugar properly when you're not moving much, and help them rebuild faster when you start moving again.

Taking creatine supplements may help your muscles store more glycogen, which is like a sugar reservoir, and since glycogen holds onto water, your muscles end up holding more water too.

Creatine might help your muscles store more glycogen, but only if you first do a workout that drains your energy stores — otherwise, it doesn’t do much for glycogen.

Taking creatine every day while your leg is immobilized might help keep your muscles' ability to handle sugar working better, so they don’t weaken as much.

In young, healthy guys, creatine helps refill muscle energy after intense exercise, but it doesn’t work by making muscles more sensitive to insulin — that part hasn’t changed, according to tests and gene activity.

Taking creatine while rebuilding leg strength after being inactive might help your muscles improve faster by boosting a key protein that helps with energy use.