or tear) occurs when one of the calf muscles (gastrocnemius or soleus) is stretched beyond its limits and separates from the Achilles tendon. When it occurs, you may hear or feel a pop in your calf muscle. Not warming up enough, doing too much hill work
. These injuries usually come after a burst of speed, and with a popping sound or sensation. Overtraining, forceful stretching, excessive speedwork or speedwork without a proper warm-up can strain a muscle. Strength imbalances also pose a threat. If the fronts
