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Hamstring Muscle Strain/Pull


anatomy of hamstring back of leg

The upper leg muscles provide your knees with movement (extension, flexion and rotation) and strength. The hamstring muscles are located on the back of your thigh. They work closely with your quadriceps muscles (front of your thigh), your gluteal muscles, and your calf muscles to ensure proper movement of your leg and hip.

The hamstrings are used but not stressed when used in common everyday motions like walking and standing, therefore, individuals who are not very active may not notice if they have weak hamstring muscles. However, well conditioned and flexible hamstring muscles are very important to athletes to stabilize the knees and prevent hamstring pain and hamstring injury.

Your hamstring muscles control movement of your body, hip and knee, help turn your leg in and out, and are involved with power activities that include a lot of propulsion, thrust and control (such as jumping, running, and walking). The muscles act as a brake to stop an action, you can feel this when walking or running downhill, landing from jumps or performing squats, and when trying to stop quickly after sprinting.

The hamstrings refer to 3 long posterior (back of leg) thigh muscles, the biceps femoris, semitendinosus, and semimembranosus. These muscles start at the bottom of your pelvis extending down the back of your thigh and along either side of your knee, to your lower leg bones.

The hamstrings are used during propulsion movements such as sprinting.

The lateral hamstring is the biceps femoris (made up of 2 parts - a short head and long head) and the medial hamstrings are the semitendinosus (joins the sartorius muscle and gracilis muscle at the pes anserinus on the tibia) and the semimembranosus (the largest hamstring muscle). The tendons (tough fibers that connect muscle to bone) for these muscles begin at the bony bump under each buttock, known as your "sit bone" (ischial tuberosity) and attach on the outer edges of your shinbone (your tibia and fibula) just below the back of your knee. They help to stabilize your knee. Your hamstrings also have a lot of soft connective tissue and are innervated by your sciatic nerve.

The posterior upper leg muscles provide your knees with mobility (extension, flexion and rotation) and strength. They work closely with your quadriceps muscles at the front of your thigh, your gluteal muscles, and your calf muscles to ensure proper movement of your leg and hip.

common injury areas hamstring

The biceps femoris hamstring muscle is the most frequently injured, as it suffers the largest stretch during sprinting, followed by the semitendinosus muscle. If you have a multi-muscle injury, it normally occurs at the point where your hamstring muscles and tendons meet (musculotendinous junction) at the top of the hamstring muscles. However, hamstring pulls can also occur at any place along the hamstring muscle bellies or in the tendons that attach the muscles to the bones.

A hamstring strain or hamstring sprain is soft tissue damage that causes pain and inflammation. These injuries can be caused by an acute injury in which the tissue is stretched or twisted beyond the limits or by a chronic injury that occurs with excessive use over time. The type of tissue that is damaged will determines whether the hamstring is sprained or strained. Learn the difference between strain and sprain here.


Symptoms of a Pulled Hamstring


Symptoms are dependent on the severity of your hamstring injury. With a mild injury you may only notice tightness in the hamstring muscles, however, a more serious injury can cause weakness and severe pain in the posterior thigh.

Common symptoms of hamstring pulls include:

Hamstring Pain

Hamstring pain patterns.

A sharp pain or twinges may be felt along the length of your hamstring or at a specific point on the back of your thigh. You may experience tenderness and/or muscle spasms in your hamstring muscle during active and resistive movements. Pain often increases when pressure is applied to the injured hamstring muscles.

It is possible to experience only mild pain when walking even if a tear in the muscle occurs, however, pain will increase if strenuous exercise is attempted. An avulsion, or complete tear causes extreme pain, even during rest. The torn tissue may bunch in the back of the thigh causing even more pain when the leg is bent.

If you have a chronic injury, you may feel more of a dull ache that lasts for long periods of time. Pain can be experienced while sitting or walking up or down stairs/hills.

Decreased Flexibility

You may experience stiffness or decreased range of motion (ROM) as a result of a pulled hamstring muscle. The tightness at the back of your thigh will make it difficult to flex your knee or straighten your leg. Your gait may be affected, or you may limp when you walk if the stiffness causes discomfort.

Muscle spasm may also occur in the injured hamstring. Injury can make the muscle and/or nerves behave abnormally and improper contraction signals may be sent to the brain causing the muscle to spasm.

Swelling and Bruising

Swelling in your hamstring muscles is a result of your tissues becoming inflamed; this normally occurs with a more serious hamstring strain. Warmth and redness may accompany swelling in severe cases. You may also feel a gap, dent or bulge in your muscle that is not normally present.

Occasionally, bruising (hamstring contusion) and discoloration over your hamstring muscle may appear immediately or after a few days with severe hamstring strains.

Weakness

Pain causing the sufferer to limp.

Weakness or complete loss of function of your hamstring muscle can also be experienced as a result of a pulled hamstring. This along with your other symptoms may make it difficult for you to walk or run and can result in you walking with a limp.

With an avulsion, or rupture, you will experience difficulties walking without assistance, a cane, or crutches. You could even feel a gap in your muscle with a complete tear.

Popping Noise

A popping or snapping sensation at the back of your thigh can often be heard and felt when your hamstring muscles are tearing. This often happens with a large force of hip flexion when your knee is extended (straightened) and may cause you to fall to the ground.


Hamstring Injury Treatments

anatomy of hamstring back of leg

Hamstring injuries can be frustrating to live with and difficult to healing. The healing process takes time and you may find it difficult to give your leg the rest it needs. This is especially true for runners and other athletes that return to their sport too early. Re-injury is common but it prolongs recovery and may also lead to permanent damage and other conditions.

Treating your hamstring injury correctly is essential to getting rid of your pain and restoring function to your hamstring muscles and tendons. Proper treatment will get you back to regular activities sooner, stop your pain, and reduce the risk of future re-injury.

To restore strength and range of motion in your hamstrings, treatment should focus on preventing scar tissue formation and muscle atrophy (shrinkage and weakening of the muscle). This requires rest and the appropriate treatments at the right time. Almost all types of hamstring pulls and tears (except a complete hamstring rupture) can be properly treated with conservative treatment options available for use at home. Complete ruptures usually require surgery. However, using these home therapies after surgery can help speed recovery, improve function, and increase range of motion in your hamstrings.

We have a whole website dedicated to the Hamstring at aidyourhamstring.com. More specific Hamstring information from this site is as follows:


Living with pain is never easy and we encourage you to call us with any questions you have related to your hamstring injury. We will do our best to help.

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During your recovery, you will probably have to modify and/or eliminate any activities that cause pain or discomfort at the location of your soft tissue injury until the pain and inflammation settle. Always consult your doctor and/or Physical Therapist before using any of our outstanding products, to make sure they are right for you and your condition. The more diligent you are with your treatment and rehabilitation, the faster you will see successful results!

 
 
 


Muscle Injury Facts:

There are approximately 639 muscles in the human body


Muscle aches and pains are common and can involve more than one muscle


Muscle pain also can involve ligaments, tendons, and fascia, the soft tissues that connect muscles, bones, and organs


Oral medications can mask the pain but do not aid in the healing of a muscle injury. Anti-inflammatories and pain killers can cause muscle related injuries to worsen


Muscle pain also can be a sign of conditions affecting your whole body, like some infections and disorders that affect connective tissues throughout the body


Most common cause of muscle aches & pains:

  • Injury or trauma including sprains and strains
  • Overuse: using a muscle too much, too soon, too often
  • Tension or stress

 

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