Coach Ken Dehart emphasizes the importance of anaerobic conditioning for tennis players. Instead of long-distance running, players are trained through footwork drills that simulate real match conditions, like shuffling and hitting forehand and backhand strokes. Dehart also highlights proper breathing techniques during play and the importance of keeping the eyes still for better focus. By combining movement, breath control, and technique, players improve both their physical conditioning and mental readiness for high-intensity moments in a match.