The best way to approach your off season is to focus on mind body connection, overall strength and then endurance. This plan is step three, building cardiovascular and muscle endurance. Find Steps One and Two a few weeks back.
Do each exercise for 40 seconds, resting for 20. Take a 2 minute break between exercises 3 and 6. Do twice through if you have time.
Flutter Kick Shoulder Press
Mountain Climber Twist
Jumping Jack Lunge