What type of isometric contraction is used during a jumping jack?

What do you do if your dog keeps sneezing? What is rediculitis? Can a person have both sickle cell and hemophilia diseases at the same time? What thomas paine mean when he said it was time to part? What is covert problem? Why do I wake up freezing and unable to get warm? What is normal pulse for 6 year old? What causes dark circles? Can mini strokes cause hallucinations? Why are the interactions of hormones and tissues in the menstrual cycle considered mechanisms? Why would there be some blood sometimes when brushing your teeth? What are the 5 steps to army counseling? A protein produced by the body to combat foreign particles? Can you develop Parkinson's after mild stroke? What foods to avoid when depressed? Did I take a pregnancy test to early my nipples hurt and are hard but the test came out negative? How do you know if your ovaries is damage? Is it ok to lose a few pounds when pregnant during the summer at 33 weeks of pregnancy? What happens if you eat a banana then drink sprite? Was da Vinci mentally ill?

What type of isometric contraction is used during a jumping jack?