Hill Sprints are the workout we all have a love/hate relationship with. They are so hard, but so good all at the same time. Below are three benefits of Hill Sprints (Plus a Bonus!). Hill Sprints really are the secret weapon in every training cycle. It is rare that you find a workout that can translate into so many benefits! They are a must try! Strengthen Running Muscles – Hidden Strength Training – Hill Sprints are a form of resistance training. They are strengthening your Hamstrings, Quadriceps, Calves, and Glutes. Reduce Injury – See Above! Speed work is a great way to improve running speed; however, it comes with the…