A lot of my clients complain of low back pain, but the actual tension is stemming from the gluteus maximus muscle. Your gluteus maximus originates at your ilium / illiac or hip bone (see diagram). Have you ever seen someone with back dimples this is the connection. Some people's aren't visible, but can be palpated. Below is a good diagram to show where I am talking about (labeled low back pain).


Your gluteus maximus is an extensor muscle that used when performing actions like climbing stairs or lifting your leg. The iliac crest divides your gluteals from your back muscles. Both your gluteals and back muscles work together and often trigger pain in one another. This is why often times buttock tension is mistaken for low back tension. You're feeling the pain in your low back, but the tension is coming from your gluteals or buttocks. Most likely your gluteus maximus, the largest of the gluteal muscles.
Relieving tension in your gluteals or specifically your gluteus maximus can be very tricky because it may be extremely tender. Everyone's tolerance to the tenderness is different. It is best to start with a finger point amount of pressure and then increase to an elbow point. If the pain is too much try moving down a little on the buttocks, this may indicate that you are applying to much pressure on the tendon and not on the muscle. You want to find the "good pain" sensation. Always start with gentle pressure and gradually increase. Hold your position until the "good pain" dissipates.
If you've experienced prolonged pain in this area it is best to see a physician, if necessary they will take an MRI. There is a disorder known as "Contracture" where the skeletal muscle is permanently contracted. Always consult your physician if you have any concerns, they will determine if massage is indicated or contraindicated for you condition.
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