Back pain? Blame the psoas. Seems as if everybody wants to dive headfirst into their psoas at the first sign of trouble with the lumbopelvic-hip region. Perhaps no other muscle is blamed more for causing problems than the psoas. Yes, it is an important stabilizer of the lumbar spine, but it shouldn't be the only one on which you focus. There is another big player on the scene: the iliacus.
JAMA: Exercise Works for LBP
The American Medical Association and its affiliated journals may not be quick to publish research espousing the benefits of the chiropractic adjustment for low back pain, but a systematic review / meta-analysis in JAMA Internal Medicine does at least give kudos to a nondrug, nonsurgical option: exercise. According to the study authors, "The current evidence suggests that exercise alone or in combination with education is effective for preventing LBP," citing moderate-quality evidence.
The review study, authored by Steffens D., et al., identified more than 6,000 randomized clinical trials on prevention strategies for nonspecific LBP, with 23 ("on 21 different randomized clinical trials including 30,850 unique participants") meeting the inclusion criteria. (It is unknown how many of the ineligible / eligible studies involved chiropractic adjusting as a preventive strategy.)
Click here to read the study abstract and access (for a fee) the full text.