• Dr. Malcolm Stubbs

“I Pulled a Hammy!”: 5 Risk Factors You Need to Know


Hamstring injuries are some of the most common injuries in sports and can be some of the most nagging and difficult to treat. These muscle injuries most often occur in activities and sports that involve sprinting and sudden stops such as track, soccer, and tennis. Also athletes in sports that involve excessive leg stretching such as martial arts or gymnastics can sustain hamstring injuries. Keep reading to find out 5 risk factors you may not be aware of that can lead to hamstring injuries.

Anatomy

The hamstring muscles and tendons are those located on the back of the thigh. Beginning at the pelvis, they stretch down the posterior thigh across the hip and knee joint to attach on the upper tibia. The hamstring muscle group is comprised of the semitendinosus, semimembranosus, and biceps femoris. Because of the location and attachment points, they serve to extend the hip and bend the knee.

Symptoms

Initial symptoms usually occur very suddenly during activity. These include pain and inability to continue running and sometimes are accompanied a snap or pop. Other symptoms which follow are swelling, bruising, and weakness.

Cause

Muscle overload is the reason hamstring injuries occur. As the muscle or tendon is being rapidly stretched during contraction, the force can cause the tissue to fail and tear. These tears can range from mild to severe and are graded I, II, or III. Grade I strains, often called a “pull” are mild and heal easily. Grade II injuries are more serious and take longer to heal. Grade III injuries involve a complete tear and may take months to heal. The most severe Grade III injuries involve detachment from the pelvis, often with a small piece of bone, and are referred to as “avulsion injuries”.

5 Risk Factors

1. Muscle imbalance – this occurs when one muscle group is much stronger than the opposing group; in this case the quadriceps. Increased load on the weaker hamstring muscles cause early fatigue and can lead to a strain

2. Muscle tightness – lack of flexibility in the hamstrings is very common. Stretching is very helpful in eliminating this factor

3. Poor conditioning – lack of physical activity causes generalized weakness leading to a strain during exercise activity

4. Muscle fatigue – prolonged activity makes muscles less responsive and more prone to injury

5. Dehydration – lack of water causes changes in muscle at the cellular level resulting in abnormal contractility and possible injury

Treatment

Primary treatment is the same as most acute musculoskeletal injuries:

  • Rest and avoidance of aggravating activity is first. Ice is applied initially to reduce pain and swelling.

  • Compression aids in support, decreases pain, and will reduce swelling.

  • Elevation will help as well.

  • Anti-inflammatory medications may also reduce symptoms.

  • Physical therapy can help recover motion and strength after the initial injury is settled down. It starts with gentle stretching, ice and heat, and then progresses to strengthening and ultimately, sports specific activity.

  • For severe injuries, occasionally surgery may be required. So these injuries should be evaluated by a physician. X-rays or an MRI may be required to determine the extent of the injury. Your orthopedic surgeon will advise if surgery is necessary.

Return to Sport

Most reinjuries occur because of attempts to return to normal activity too soon. The severity of the injury will determine how long it takes to heal. Often symptoms will disappear before the injury is completely healed and too early of a return can result in a reinjury that will further prolong healing. So a gradual progression of activity over time is paramount. Be sure to follow the advice of your trainer, therapist, or physician to avoid this nagging injury or the condition can become chronic.

#running #pain #fitness #sports #physicalexam #patientcenteredcare #stayinformed #hamstring

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©2017 by Dr. Malcolm Stubbs.