I am a science writer, former massage therapist, and I was the assistant editor at ScienceBasedMedicine.org for several years. I have had my share of injuries and pain challenges as a runner and ultimate player. My wife and I live in downtown Vancouver, Canada. See my full bio and qualifications, or my blog, Writerly. You might run into me on Facebook or Twitter.
If you've been working out hard, playing football or other sports, or moving a lot of heavy furniture and are suddenly suffering with radiating lower back pain, chances are you have pulled muscles or strained muscles in the back. Often, strained muscles will cause a burning sensation in the lower back a feeling of having limited movement ability. Doctors prefer to limit prescribing of opiate pain medications and may give you an alternative medication with less risk of becoming dependent.
Your doctor may order imaging tests, such as an MRI, to get more information about the location and cause of the irritated nerve. An MRI can show the alignment of vertebral disks, ligaments, and muscles. A CT scan using contrast dye can also provide a useful picture of the spinal cord and nerves. Determining the cause of sciatica can help guide the course of treatment. X-rays can help identify bony abnormalities but can't detect nerve problems.
Relaxing in a full squat works for releasing the psoas if you’re comfortable. If you’re desperately trying not to fall over backwards, then you’re probably tightening your hip flexors to hold yourself up. This defeats the entire purpose of a resting squat. Grab something like a pillow or a couple books to throw under your heels and see if you can sink down and “rest” into a resting squat. Hold that for a little bit taking some really deep breaths directing the air and pressure of your breath into your back. Then stand up and move around. I bet your hip flexors will feel looser than before the resting squat.
You're more likely to get a hip flexor injury if you've had one in the past, you don't warm up properly before engaging in athletic activity, your muscles are already tight or stiff, or your muscles are weak from being overused. If, while exercising, you try to do too much at once in too short an amount of time, you can also put yourself at risk for a hip flexor injury.