If you sit in a chair, keeping the heel a couple inches over and then start moving the knee up and down a bit rapidly, after a second or two the leg will just “keep doing it”, for whoever long, quite fast. You can stop ofc, but I takes no effort or thinking at all to just let the leg “do what it does”… Ive asked other people and they all can/do the same. What is the reason for this “involuntary spasm” or what I can call it?
Edit: keeping the toes on the floor, and heel a bit over..
In: Biology
This type of leg shaking is often an involuntary muscle contraction and can be referred to as a tremor. It’s not always a cause for concern and can happen for various reasons, such as restless leg syndrome, anxiety, or even just out of habit or boredom.
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