Motivation is often cited as one of the most important factors in physical performance, whether it be in an exercise or a sport setting. Without motivation, athletes and exercisers alike can struggle to find the energy and enthusiasm for their activities. Fortunately, there are four primary sources of fuel that can be used to motivate physical activity: intrinsic motivation, extrinsic rewards and punishments, goal-setting, and self-motivation. Each of these fuels has its own advantages and disadvantages, but when combined they can help create a powerful source of motivation that enables individuals to reach their goals.