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)-.
While sitting in the chair, perform swimming exercises with your arms. Imagine you are doing the crawl stroke, back stroke and breaststroke and perform those movements with your arms. To perform chair jumping jacks, begin by sitting up straight with your legs apart and your arms up and out to the sides.