Many people train to stay in shape, but what about staying in shape with the goal of longevity? These are some of the best exercises that a conditioning coach for the Los Angeles Lakes uses to improve his player’s weaknesses. The single leg squat tests your strength and balance. The half-kneel standup monitors your ability to control your body from a split or lunge stance. Also, the Airplane test lets people see how competent their core is while you strive to be stable on one leg.