Week 3 - Barre HIIT endurance training for more intense runs

Tabata is a 20-second high-intensity interval training workout followed by 10-second rest. It helps increase your heart rate to the point that it actually burns fat and you want to make sure you build up your cardio endurance when you're playing tennis.
Barre 2 Barre Training Program for Advanced Tennis
How to use barre and bounce techniques and exercises to improve mind body connection for advanced tennis