All of these agility products are based on the theory that your body can improve its abilities in three ways: by learning the movements or exercises, by doing the exercises and by becoming more flexible. The three ways of improving agility and agility training can be categorized as "accelerating", "re-positioning" and "flexibility". This is based on the fact that most people who are fit, have some form of body structure and are generally well conditioned (especially those who are "fitness-obsessed") are more likely to improve their agility. If you have not already purchased the products listed below you should definitely start with these three types of agility products: Accelerating Aids. These are "accelerators" that help you to increase your speed by adding more muscle mass, increasing the number of muscle fibers in your muscles and increasing the strength of your nervous system. There is a lot of debate as to whether or not they are necessary or if they actually hurt. The most likely reason is that you don't need them. You can increase your speed and agility more quickly without the need for acceleration aids. If you are looking for a solution to improve your agility, the answer is usually a no, they don't work. I personally would not recommend them. Muscle Building Products.