Shoes are one of the most important elements to avoiding injury when training. In the instance when an individual is training for a race, shoes are so important for foot support, especially if the runner is running distance. If the runner’s feet over-pronate, they need a support shoe. If the runner is prone to injury, they need a cushioned shoe to avoid any stress fractures, etc. It is important to find the perfect fit so there is not any long-term injuries in the works during a run.
https://www.livestrong.com/article/350355-what-are-the-benefits-of-running-shoes/