The answer is isometric contraction. Isometric contractions generate force without changing the length of the muscle.
Hope this helps! :)
Movement concepts (or elements of movement) explored in the curriculum include body awareness, spatial awareness, effort awareness, and relationship to/with objects, people and space. Movement strategies refer to a variety of approaches that will help a player or team to successfully achieve a movement outcome or goal.
You would need to go to the doctor and take a test for diabetes or how your health is, and you can work your way through that then.