I think it would have to do with your circulation..? Decreased Circulation to be precise.
Answer:
It is extremely important to read food labels because they help us make informed decisions towards a healthy diet. Moreover, food labels inform people of the contents of the product. This includes nutrition facts, calories, and ingrediants. Knowing how to read food labels also protects us from the false health claims on product packs. (I don't know if this is what you need but I hope this helped!!)
The answer is isometric contraction. Isometric contractions generate force without changing the length of the muscle.
Hope this helps! :)
