Calf raises are the most popular isolation exercise, designed to strengthen your calf muscles, ankle strength and stability. This exercise can prevent injury, the stronger your calves are the less likely they are to tear if you have a nasty fall, strengthening these muscles can really help improve your running and thereby your endurance in general.
Calf raises can be performed anywhere and you don’t necessarily need any equipment. To make this exercise more challenging you can perform it with a barbell on your back. If you perform these exercises with your toes on an elevated surface you can also feel a much better stretch and an improved range of motion.