This is a good warm up routine as you rotate between 4 light to intermediate intensity level workouts. No equipment is needed aside from your trusty Gymboss Interval Timer that you can bring with you anywhere.
Jumping Jacks: Stand feet together, arms resting on each side. Jump to position 2 where you land with your legs spread apart and hands together overhead. Then jump back to starting position.
Mountain Climbers: Start from a push up/ plank position. Begin by bringing one knee forward and touch the ground with your feet. Then repeat by bringing the other knee forward while moving your first leg back to starting position. Do this as fast as possible (as though you are running on the spot in a push up position.)
High Knees: Running on the spot but lift your knee to waist level (90 degree angle). Repeat as fast as possible for each round.
Bum Kicks: Running on the spot but lift your heel up behind you until you are almost touching your bum. (Hence “bum kicks” get it? 😉 )