In the context of musculotendinous unit injuries, which of the following injuries is characterized by extremely painful involuntary muscle contractions that occur most commonly in the calf, abdomen, or hamstrings? Multiple Choice Tenosynovitis Muscle soreness Muscle cramp Tendinitis Muscle strain
a. Tenosynovitis
b. Muscle soreness
c. Muscle cramp
d. Tendinitis