Calf Injuries, Pulls, Strains, Tears, Ruptures, Myositis
Muscle strains can be categorized into three grades, based on severity:
Grade 1: Mild damage to individual muscle fibers (less than 5% of fibers) that causes minimal loss of strength and motion.
Grade 2: More extensive damage with more muscle fibers involved. …
Grade 3: Complete rupture of a muscle or tendon.