A zygapophyseal joint sprain, also known as a facet joint sprain, occurs when one of the small joints between vertebrae in the spine becomes inflamed or injured. These joints, called zygapophyseal joi...
In 2009, a study led by Richard A Roy and colleagues, the effects of chiropractic treatments on heart rate variability (HRV) were investigated in patients with and without lower back pain. The study a...

