^ Jump up to: a b Joseph C. Keating, Jr., Cleveland CS III, Menke M (2005). "Chiropractic history: a primer" (PDF). Association for the History of Chiropractic. Archived from the original (PDF) on 19 June 2013. Retrieved 2008-06-16. A significant and continuing barrier to scientific progress within chiropractic are the anti-scientific and pseudo-scientific ideas (Keating 1997b) which have sustained the profession throughout a century of intense struggle with political medicine. Chiropractors' tendency to assert the meaningfulness of various theories and methods as a counterpoint to allopathic charges of quackery has created a defensiveness which can make critical examination of chiropractic concepts difficult (Keating and Mootz 1989). One example of this conundrum is the continuing controversy about the presumptive target of DCs' adjustive interventions: subluxation (Gatterman 1995; Leach 1994).
Jump up ^ Weeks, William B; Goertz, Christine M; Meeker, William C; Marchiori, Dennis M (2015-01-01). "Public Perceptions of Doctors of Chiropractic: Results of a National Survey and Examination of Variation According to Respondents' Likelihood to Use Chiropractic, Experience With Chiropractic, and Chiropractic Supply in Local Health Care Markets". Journal of Manipulative and Physiological Therapeutics. 38 (8): 533–44. doi:10.1016/j.jmpt.2015.08.001. PMID 26362263.
Chiropractors use hands-on spinal manipulation and other alternative treatments, the theory being that proper alignment of the body's musculoskeletal structure, particularly the spine, will enable the body to heal itself without surgery or medication. Manipulation is used to restore mobility to joints restricted by tissue injury caused by a traumatic event, such as falling, or repetitive stress, such as sitting without proper back support.