Start standing with your feet together and your arms by your sides.
Jump, spreading your feet and raising your arms, landing with your legs spread around 2-3 feet apart and your arms directly over your head.
Jump again this time coming back to your starting position to complete one repetition. Repeat the motion for a set time period, or for a set number of repetitions.
Jumping Jacks are a simple cardio exercise that have been around for a very long time and are often overlooked. They are an easy way to get your heart rate up without any equipment or even leaving the comfort of your own home. They are a great addition to a home workout routine if you don't have access to expensive cardio equipment such as a treadmill or elliptical machine. There are many variations to this move; this is the simplest version but it’s still a great total body workout that challenges your heart and lungs. It has been a favorite United States Military move in basic training boot camp for decades.