Many patients with back pain, leg pain, or weakness of the lower extremity muscles are diagnosed with a herniated disc. When a disc herniation occurs, the cushion that sits between the spinal vertebra is pushed outside its normal position.
Agnew, R. (2001). Building on the Foundation of General Strain Theory: Specifying the Types of Strain Most Likely to Lead to Crime and Delinquency. Journal of Research in Crime and Delinquency, 38, 319â361.CrossRef. Agnew, R. (2002).
Calf strains can occur suddenly or slowly over time, and activities, such as walking, climbing stairs, or running can be painful, difficult, or impossible. A muscle strain is graded according to the amount of muscle damage that has occurred: 1  Grade 1. 2  A mild or partial stretch or tearing of a few muscle fibers. 3  The muscle is tender and painful, but maintains its normal strength. 4  Use of the leg is not impaired, and walking is normal. 5  Grade 2.