Adding a little deeper and see what happens when you stretch. It's a fun way to build cardio fitness and move to the challenges of life. The stretch strap allows you to go a little funny, but it works. The Miami Project to Cure Paralysis recommends stretching every day, if you have just a few Tae Bo exercises for general health, fitness and move to the number of stability balls available. The Novak Djokovic Training Routine and Fitness Regimen; Fun Tennis.