BACK SPASMS

Trouble Staying Upright

Lower back spasms are very common, and usually the cause is misdiagnosed. Most lower back spasms are caused by the hip flexors tightening up. This will feel like a tight horizontal band across the top of the hips, which can occasionally go into full spasm.
Trigger point and manual release of the psoas muscle is the best way of releasing the entire lower back. 
This should be done in concert with a stretching regime as shown in the hip flexor videos below, scroll through to find them.