There is also a special null type, the type of the expression null, which has no name. Because the null type has no name, it is impossible to declare a variable of the null type or to cast to the null type.
Transcript of Muscles Used for Jumping Jacks! Muscles Used for Jumping Jacks! FONTS. Muscles of the Abdomen- Anterior View. Rectus Abdominus. : Helps stabilize the movement to create pressure through a jumping jack. Muscles of the Lower Extremity. Anterior View (leg)-.
Calories Burned - Jumping Jacks - vigorous. Find out how many calories you burn for Jumping Jacks - vigorous. The number of calories you burn while exercising is dependent on the exercise you do, your weight, and the time spent doing the exercise. Use the calories burned calculator below to see how many calories you burned during your workout. Calculate.