1. Push up

Begin in “up” position, hands shoulder width, back straight, head up, using toes as a pivot point for men or knees for women. Knee position may also be used for males who cannot perform a full-body pushup. Breath in and lower the body until the chin touches the floor. Keep the back straight and push up while breathing out until arms are fully extended.

2. Jump squats

Also known as . Stand with feet shoulder-width apart, arms at sides. Start by doing a regular squat and then jump up as explosively as you can, when you rise up reaching for the ceiling. When you land, lower your body back into the squat position to complete one rep.

3. Jump and jacks

Known as . Stand up straight with your feet shoulder-width apart and let your arms hang down by your sides. Jump up just off of the ground and spread your legs, while quickly raising your arms high up over your head until your hands almost touch. Keep your hands open with your palms facing away from you during the first part of the movement. Bring your feet back to shoulder width while quickly lowering your arms back down to your sides to finish the first jumping jack repetition.

4. Floor crunch

Lie on your back on the floor. Using a mat or carpeted surface. Bend your knees and curl your back to lift your shoulders towards the ceiling (not towards your knees) using strictly your abdominal muscles.

Interval workouts are fun and very helpful. You can try interval workout at home, at the park, or the gym using different exercises or machines. Have fun and enjoy.