hip HAMSTRING STRAIN
DEFINITION:
- A stretching injury to the muscles/tendons of the posterior thigh that extend the hip and flex the knee.
- The hamstring muscle/tendon units attach from the pelvis to the lower leg posteriorly, spanning both the hip and knee joints. (See illustration).
MECHANISM OF INJURY / HOW IT OCCURS:
- Often a result of a sudden change in direction, stretching an actively contracting muscle/tendon unit.
- Activities such as running, sprinting, and hurdles can lead to hamstring strain.
- The injury usually occurs at the junction of the muscle and tendon.
SYMTOMS:
- Individuals often complain of a sudden, sharp pain to the back of the thigh.
- Will notice increasing symptoms with straightening of the knee.
DIAGNOSIS:
- Physical examination will reveal tenderness to palpation at some point along the course of the muscle/tendon unit.
- May see swelling, bruising, as well as feeling a palpable defect/gap if severe.
- Stretch to the hamstring muscle/tendon unit with the hip flexed to 90 degrees and the knee subsequently extended causes pain.
TREATMENT/REHABILITATION:
- R.I.C.E. - Rest, ice, compression, and elevation are the initial treatment modalities utilized.
- An anti-inflammatory medication (NSAIDs), will help with discomfort and swelling.
- Therapy to include stretching and strengthening is beneficial. (See exercises for hamstring strain).
- Gradual resumption of activities and gradual increase in intensity level is important.




