In this study of lumbar breakdown (specifically spondylolisthesis and herniated intervertebral discs), Frederick P. Thieme finds that mechanical strains resulting from erect posture and lumbar curvature do contribute to low back breakdown in humans.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $20. ThriftBooks.com. Read more. Spend less.