Piriformis Syndrome in Cycling – Causes & Symptoms

Piriformis syndrome is a neuromuscular disorder occuring when the piriformis muscle (musculus piriformis), a small muscle in the buttock area, becomes tense or shortened.

Because the sciatic nerve (nervus ischiadicus) runs below this pear-shaped muscle, a hardened piriformis muscle can put pressure on the nerve, leading to pain in the lower back and buttocks, which can sometimes radiate down into the leg. Medical experts believe that about six to eight percent of all lower back pain syndromes can be attributed to piriformis syndrome.

When it comes to cycling, opinions differ somewhat.

“It depends on how you ride,” says Dr. Kim Tofaute, Egon’s sports ergonomist and bike fitting specialist. “Easy riding is good, because it can relax the piriformis muscle, while intense cycling should be avoided, at least if there are already issues with the piriformis muscle or even the sciatic nerve.”

Dr. Kim Tofaute.

What is The Piriformis Muscle?

The piriformis muscle (from Latin piriformis ‘pear-shaped’) is located in the deep hip muscles and runs below the large gluteal muscle. Its point of attachment is the sacrum. It extends from the inner surface of the sacrum to the top of the greater trochanter on the femur. Its main functions are to externally rotate the extended hip, to spread the thigh, and to lift the thigh backwards. Additionally, it provides stability to the hip joint by holding the femoral head in the acetabulum.

How Does the Piriformis Muscle Affect the Sciatic Nerve?

Through tension or hardening of the piriformis muscle, the space in the greater sciatic foramen is reduced, leading to the compression and irritation of the sciatic nerve. Hence it is sometimes referred to as “entrapment syndrome”. The pressure on the sciatic nerve (Nervus Ischiadicus) typically causes symptoms such as back pain or pain in the buttocks, which can radiate down the legs, similar to a herniated disc. If such symptoms occur, you should seek professional medical attention to start the correct treatment.

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How Does Piriformis Syndrome Develop?

Piriformis syndrome can be caused by various factors:

  • Overuse in sports and training: Frequent, prolonged, and intense running, cycling, or other repetitive or strenuous leg movements can lead to overuse of the piriformis muscle, causing pain.

  • Trauma: A fall or direct injury to the buttock area can also damage the muscle and lead to inflammation.

  • Anatomical Differences: In seldom cases the sciatic nerve runs through the piriformis muscle (Musculus Piriformis) instead of underneath it, which increases the risk of irritation.

  • Prolonged Sitting: Long periods of sitting, especially on hard surfaces, can tense the muscle and compress the sciatic nerve (Nervus Ischiadicus).

  • Wallet: This not a joke! A common issue that leads to Piriformis Syndrome in men is the wallet. When it is in the back pocket while sitting, it compresses one side of the buttocks more than the other. This compression can lead to reduced blood flow in the buttocks and the gluteus maximus (large buttock muscle). The insufficient supply of the tissue means metabolic processes can no longer run optimally. As a result, tensions may develop over time.

What are the Effects of Piriformis Syndrome?

Piriformis Syndrome can cause various issues:

  • Buttock Pain: Pain typically occurs on the one side or body half where the sciatic nerve is affected. The pain may not be localized to one spot, but can radiate down the thigh and into the leg.

  • Numbness and Tingling: These symptoms also appear on the affected side. They can spread in the buttock area and along the sciatic nerve, extending into the leg and even reaching the foot.

  • Particularly with prolonged sitting or crossing the legs, pain may occur.

  • Restricted Movement: Pain can significantly affect movement during activities involving the hip or leg.

How is Piriformis Syndrome Diagnosed?

If you experience severe pain or even suspect piriformis syndrome, you should consult a doctor. The sooner the issue is addressed, the faster and more effectively it can be resolved. Before diagnosing piriformis syndrome, the doctor will first conduct a detailed interview, in which they will ask about the duration, location, and nature of your pain and symptoms. Also, they will check any situations in which the pain occurs and whether it might be related to preexisting condition, a fall, or an injury. The next step involves a physical examination. The doctor will test the mobility of your hips and look for signs of muscle tension, shortening, restricted movement, or sensory disturbances. For instance, tenderness of the piriformis muscle is a clear indicator of piriformis syndrome.

What Treatment Options and Therapies Are Available?

The treatment of piriformis syndrome includes a combination of conservative and, in more severe cases, invasive methods. “Measures include loosening and stretching to correct asymmetries and imbalances,” says Dr. Kim Tofaute. In severe cases, medical and physiotherapeutic treatments follow, says Kim Tofaute. Here is a list of measures:

Conservative Treatments

  • Physiotherapy: Stretching and strengthening exercises to relax the piriformis muscle and alleviate nerve pressure. (see below)

  • Medications: Pain and anti-inflammatory medication to relieve symptoms.

  • Cold and Heat Applications: Alternating cold and hot compresses to reduce inflammation and muscle tension.

  • Massage Therapy: Deep tissue massages can help relieve muscle tension.

Invasive Medical Treatments (to be taken under medical supervision only)

  • Injections: Corticosteroid injections or anesthetics can be used to directly relieve inflammation and pain in the affected area.

  • Surgery: In rare cases, and only if conservative treatments do not provide relief, surgical release of the sciatic nerve may be necessary.

Which Sleeping Position Helps with Sciatic Pain?

If you suffer from piriformis syndrome, it is beneficial to frequently change your sleeping position to relief tension and stimulate blood flow to the muscles. You can sleep on your back or on your side. However, if you experience severe pain, sleeping with the painful side up can help relieve discomfort. Placing a pillow between your legs can also alleviate symptoms. Ensure that your hip and shoulder regions sink into the mattress. It is important to use a mattress that is not too hard to avoid excessive compression of the muscles.

How Can I Prevent It?

Prevention is better than cure! Therefore, individuals at risk (such as office workers who sit at their desks for many hours every day) should utilize all possible measures to prevent piriformis syndrome from causing pain or movement restrictions. Here are various preventive measures, both active and passive:

  • Regular Stretching Exercises: Especially for the hip muscles, to prevent tension.

  • Strengthening Exercises: Certain muscle groups in the hip and buttock area can be strengthened to maintain balance between the anterior and posterior muscle groups.

  • Ergonomic Furniture: Specially designed cushions or chairs can help relieve muscle strain in the buttock and hip areas.

  • Pausen: Those who sit for long periods and remain relatively immobile, such as at a computer or checkout counter, should take regular breaks to stand up, stretch, and move around.

Exercises for Treating and Preventing Piriformis Syndrome

The piriformis muscle is a buttock muscle that externally rotates and stabilizes the extended hip. When the hip is flexed, its function changes to abduct the leg outward. Targeted exercises help stretch and strengthen the tense muscle, making it more resilient without irritating the nerves running beneath it. Take deliberate time for stretching and strengthening exercises. Aim to train approximately two to three times a week to see results. Here are some suitable exercises:

Stretching the Piriformis Muscle:

Starting Position: Lie on your back with the leg you want to stretch bent at both the hip and knee joints. Your hand should grasp the knee from the side.

Execution: Pull the bent knee towards the opposite shoulder diagonally until you feel a stretch in the side of the buttock.

Hold the stretch for about 15 to 30 seconds. Perform three repetitions on each side.

Stretching the Gluteal Muscles:

Starting Position: Lie on your back with your legs bent. Cross your right heel over your left knee. Use both hands to grasp your left thigh.

Execution: Gently pull the left thigh towards your chest until you feel a stretch in the right thigh/buttock. Then switch sides.

Hold the stretch for about 15 to 30 seconds. Repeat the exercise three times on each side.

Mobilization and Strengthening of the External Rotators:

Starting Position: Lie on your side with your hip and knee joints slightly bent. Your legs should be stacked parallel on top of each other.

Execution: Rotate the top knee towards the ceiling, keeping the feet in contact. The pelvis should remain stable.

Repeat the movement 15 times, then switch sides. This constitutes one set. Perform 2 to 3 sets with 60 seconds of rest between sets.

Relaxation of the Gluteal Muscles:

Starting Position: Stand with your back against the wall.

Equipment: Place a tennis ball about a hand’s width below your waistband.

Execution: Massage the painful area by making gentle circular movements and applying pressure on the tennis ball.

Mobilization of the External Rotators with a Resistance Band:

Starting Position: Lie on your stomach with your thighs parallel. Wrap the resistance band around your lower leg and secure it to a fixed object beside the exercise leg.

Execution: Actively pull the bent leg inward against the resistance of the band. Keep the thigh in contact with the floor.

Repeat the movement 15 times, then switch legs. This constitutes one set. Perform 2 to 3 sets, with approximately 60 seconds of rest between sets.

Strengthening the Thigh and Gluteal Muscles:

Starting Position: Stand in front of a chair with your knees touching the seat.

Execution: Sit back and down with your buttocks, keeping your back straight and your knees in contact with the chair.

Repeat the movement 15 times. This constitutes one set. Perform 2 to 3 sets with approximately 60 seconds of rest between sets.