Caffeine improves athletic performance. This is a proven fact in exercise science. Drinking caffeinated coffee has been linked to improved physical performance. It is more evident in endurance (aerobic) sports lasting for a longer period of time, like running, cycling, and rowing. However, it would also be beneficial before a strength workout. Consuming caffeine before a strength or cardio (aerobic) workout improves your energy, focus, exercise capacity and fat metabolism.