Data supports that chiropractic treatments give measurable health benefits to people regardless of the presence or absence of symptoms. A significant amount of preliminary evidence supports that people without symptoms can benefit from chiropractic care. Improved function can be objectively measured in asymptomatic individuals following chiropractic care in a number of body systems often by relatively non-invasive means. Chiropractic care is of benefit to every function of the body and has the potential for long-term, overall health benefit to those receiving chiropractic care. 

Parkinson Disease
Chiropractic care can be effective in the treatment of Parkinson Disease . Research about Parkinson's disease, which may be caused by traumas to the head, neck, and upper spine, demonstrates that Chiropractic manipulation and stretching of the neck and upper back may help to stop progress of the disease and relieve and reverse symptoms.
Research demonstrates that Chiropractic treatment can help with pain associated with dysfunction and create healthier movement patterns that result in greater ease of movement.  Recent studies have confirmed that people with Parkinson’s benefit greatly from chiropractic care.
Reduction in Symptoms Related to Parkinson’s Disease Concomitant with Subluxation Reduction following Chiropractic Care; Journal of Chiropractic Research 2011 (Mar 14);   18–21 A 67 year-old female patient presenting to a private practice with signs and symptoms of Parkinson’s disease that include weakness, tremors, scoliosis and rigidity. The patient was seen 19 times and was treated 12 times with Chiropractic therapy. Patient showed improvements in weakness, tremors, rigidity, and overall mobility.
Chiropractic Management of a Patient with Parkinson’s Disease: A Case Report; JManipulative Physiol Ther 2000 (Oct);   23 (8):   573–577 ~ Chiropractic care had a successful outcome for a patient with Parkinson's disease.
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Chiropractic Management of 10 Parkinson’s Disease Patients; Todays Chiropractic 2000;   29 (4) July ~ After a minimum of three months of chiropractic care, eight out of 10 cases reviewed showed improvements in Parkinson’s disease and associated symptoms.

Multiple Sclerosis
Many patients with Multiple Sclerosis have chronic pain syndromes. Chiropractic treatments are gentle and effective with MS patients especially when treating muscles and soft tissue. Research shows that Chiropractic care is very effective for MS patients.
Eighty-one Pateients with Multiple Sclerosis and Parkinson’s Disease Undergoing Chiropractic Care; Journal of Vertebral Subluxation Research 2004 (Aug);   23 (8):   1–9 A causal link between trauma-induced upper cervical injury and disease onset for both Multiple Sclerosis (MS) and Parkinson’s disease (PD) appears to exist. Correcting the injury to the upper cervical spine through the use of Chiropractic may arrest and reverse the progression of both MS and PD.
Chiropractic Management of Musculoskeletal Pain in the Multiple Sclerosis Patient; Clinical Chiropractic 2005 (Jun);   8 (2):   57–65 Chiropractic care has been successfully integrated into a chronic care facility which is affiliated with a private university medical school. Chiropractic has been utilized in this setting for pain management of MS patients suffering from chronic pain syndromes.
Chiropractic Management of a Multiple Sclerosis Patient: A case Report; Journal of Vertebral Subluxation Research 2001;   4 (2):   22–30 After chiropractic care, all Multiple Sclerosis (MS) symptoms were absent. A follow-up MRI showed no new lesions as well as a reduction in intensity of the original lesions. After a year passed in which the patient remained asymptomatic, another follow-up MRI was performed. Once again, the MRI showed no new lesions and a continued reduction in intensity of the original lesions. Two years after chiropractic care began, all MS symptoms remained absent.
Clinical Presentation of a Patient with Multiple Sclerosis and Response to Manual Chiropractic Adjustive Therapies; J Manipulative Physiol Ther 1993 (Nov);   16 (9):   595–600 Manual adjustive Chiropractic therapy responsible for the dramatic symptomatic relief provided for a patient diagnosed with MS.
Chiropractic Care for Five Multiple Sclerosis Patients; Todays Chiropractic 2000 (Nov);   29 (6)      All five patients recalled experiencing head or neck trauma(s) prior to the onset of multiple sclerosis symptoms. In all five cases, evidence of upper cervical injury. The five patients discussed in this report, Chiropractic care not only stopped but also reversed the pathological processes involved in MS.

Cerebral Palsy:

Improvement in Paraspinal Muscle Tone, Autonomic Function and Quality of Life in Four Children with Cerebral Palsy Undergoing Subluxation Based Chiropractic Care , Journal of Vertebral Subluxation Research 2006 (Jun 21):   All four children showed improvement in activities of daily living including mobility, feeding, and postural control as a result of Chiropractic Treatments.

Cortical Blindness, Cerebral Palsy, Epilepsy, and Recurring Otitis Media: A Case Study in Chiropractic Management Todays Chiropractic 1998;   27 (3):   16-25 ~ Observations of one patient presenting with cortical blindness, cerebral palsy, epilepsy, and recurrent otitis media are reported. Relief of symptoms is noted subsequent to correction by Chiropractic therapy.

Chiropractic Care on Children and Adults with Cerebral Palsy: A Preliminary Report, Collins, KF et al. Chiropractic Pediatrics 1994; 1 (1):13-15 Seven patients were tested - two children and five adults. All patients in this study had improvements in many areas which would be considered as subjective; muscle spasticity decreased, sleep patterns improved, decreased irritability, decreased pain, and decreased incidence of respiratory and other infections. One child had four unsuccessful surgeries to correct strabismus - after two adjustments, the strabismus was no longer apparent. The children were able to hold their heads up for longer periods and are making more at-tempts at crawling or standing with support. There is also improved clarity and volume of speech in patients with speech and hearing problems. With chiropractic care, there is overall decrease in muscle activity at all levels and balance improved with eyes closed
Treatment of a Cerebral Palsy Patient by Chiropractic Therapy: A Case Study, Sweat R, Ammons D Today's Chiropractic Nov/Dec 1988. P.51-52. . A 40 year old woman who was diagnosed with cerebral palsy at age 2 was placed under chiropractic care. She had been in severe pain her whole life. M.D.s told her she would have to "learn to live with it. The patient began to respond to Chiropractic treatment almost immediately, and improvement continued gradually over about the first 2-3 weeks." Within two months of beginning care, "The patient...stated that this is the first time in her life that she has ever been free of pain."


J Chiropr Med.
2007 Dec;6(4):153-8.
Chiropractic treatment of a pregnant patient with lumbar radiculopathy.
Kruse RA, Gudavalli S, Cambron J.
Source
Private practice, Homewood & Chicago, Illinois, Homewood, IL 60430.
Abstract
OBJECTIVE:
The purpose of this report is to describe chiropractic treatment of lower back and unilateral leg pain in a pregnant patient.
CLINICAL FEATURES:
A 26-year-old woman in her second trimester of pregnancy had severe pain in her lower back that radiated to her hips bilaterally and to her right leg. She reported tingling down her right lower leg to the dorsum of her foot. Although no diagnostic imaging was performed, her differential diagnoses included lumbalgia with associated radiculopathy.
INTERVENTION AND OUTCOME:
Treatment consisted of manual traction in the side-lying position using a specialized chiropractic table and treatment technique (Cox flexion-distraction decompression) modified for pregnancy. Relief was noted after the first treatment, and complete resolution of her subjective and objective findings occurred after 8 visits.
CONCLUSION:
When modified, this chiropractic technique appears to be an effective method for treating lower back pain with radiation to the leg in a pregnant patient who cannot lie prone.

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J Manipulative Physiol Ther. 2008 Nov-Dec;31(9):659-74.
Chiropractic management of low back pain and low back-related leg complaints: a literature synthesis.
Lawrence DJ, Meeker W, Branson R, Bronfort G, Cates JR, Haas M, Haneline M, Micozzi M, Updyke W, Mootz R, Triano JJ, Hawk C.
Source
Center for Teaching and Learning, Palmer College of Chiropractic, Davenport, Iowa, USA. dana.lawrence@palmer.edu
Abstract
OBJECTIVES:
The purpose of this project was to review the literature for the use of spinal manipulation for low back pain (LBP).
METHODS:
A search strategy modified from the Cochrane Collaboration review for LBP was conducted through the following databases: PubMed, Mantis, and the Cochrane Database. Invitations to submit relevant articles were extended to the profession via widely distributed professional news and association media. The Scientific Commission of the Council on Chiropractic Guidelines and Practice Parameters (CCGPP) was charged with developing literature syntheses, organized by anatomical region, to evaluate and report on the evidence base for chiropractic care. This article is the outcome of this charge. As part of the CCGPP process, preliminary drafts of these articles were posted on the CCGPP Web site www.ccgpp.org (2006-8) to allow for an open process and the broadest possible mechanism for stakeholder input.
RESULTS:
A total of 887 source documents were obtained. Search results were sorted into related topic groups as follows: randomized controlled trials (RCTs) of LBP and manipulation; randomized trials of other interventions for LBP; guidelines; systematic reviews and meta-analyses; basic science; diagnostic-related articles, methodology; cognitive therapy and psychosocial issues; cohort and outcome studies; and others. Each group was subdivided by topic so that team members received approximately equal numbers of articles from each group, chosen randomly for distribution. The team elected to limit consideration in this first iteration to guidelines, systematic reviews, meta-analyses, RCTs, and coh ort studies. This yielded a total of 12 guidelines, 64 RCTs, 13 systematic reviews/meta-analyses, and 11 cohort studies.
CONCLUSIONS:
As much or more evidence exists for the use of spinal manipulation to reduce symptoms and improve function in patients with chronic LBP as for use in acute and subacute LBP. Use of exercise in conjunction with manipulation is likely to speed and improve outcomes as well as minimize episodic recurrence. There was less evidence for the use of manipulation for patients with LBP and radiating leg pain, sciatica, or radiculopathy.

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J Manipulative Physiol Ther. 2009 Jan;32(1):25-40.
Chiropractic management of fibromyalgia syndrome: a systematic review of the literature.
Schneider M, Vernon H, Ko G, Lawson G, Perera J.
Source
School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, Pa, USA. drmike@city-net.com
Abstract
OBJECTIVE:
Fibromyalgia syndrome (FMS) is one of the most commonly diagnosed nonarticular soft tissue conditions in all fields of musculoskeletal medicine, including chiropractic. The purpose of this study was to perform a comprehensive review of the literature for the most commonly used treatment procedures in chiropractic for FMS and to provide evidence ratings for these procedures. The emphasis of this literature review was on conservative and nonpharmaceutical therapies.
METHODS:
The Scientific Commission of the Council on Chiropractic Guidelines and Practice Parameters (CCGPP) was charged with developing literature syntheses, organized by anatomical region, to evaluate and report on the evidence base for chiropractic care. This article is the outcome of this charge. As part of the CCGPP process, preliminary drafts of these articles were posted on the CCGPP Web site www.ccgpp.org (2006-8) to allow for an open process and the broadest possible mechanism for stakeholder input. Online comprehensive literature searches were performed of the following databases: Cochrane Database of Systematic Reviews; National Guidelines Clearinghouse; Cochrane Central Register of Controlled Trials; Manual, Alternative, and Natural Therapy Index System; Index to Chiropractic Literature, Cumulative Index to Nursing and Allied Health Literature; Allied and Complementary Medicine; and PubMed up to June 2006.
RESULTS:
Our search yielded the following results: 8 systematic reviews, 3 meta-analyses, 5 published guidelines, and 1 consensus document. Our direct search of the databases for additional randomized trials did not find any chiropractic randomized clinical trials that were not already included in one or more of the systematic reviews/guidelines. The review of the Manual, Alternative, and Natural Therapy Index System and Index to Chiropractic Literature databases yielded an additional 38 articles regarding various nonpharmacologic therapies such as chiropractic, acupuncture, nutritional/herbal supplements, massage, etc. Review of these articles resulted in the following recommendations regarding nonpharmaceutical treatments of FMS. Strong evidence supports aerobic exercise and cognitive behavioral therapy. Moderate evidence supports massage, muscle strength training, acupuncture, and spa therapy (balneotherapy). Limited evidence supports spinal manipulation, movement/body awareness, vitamins, herbs, and dietary modification.
CONCLUSIONS:
Several nonpharmacologic treatments and manual-type therapies have acceptable evidentiary support in the treatment of FMS.
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Spine (Phila Pa 1976). 2011 Aug 15;36(18):1427-37.
Does maintained spinal manipulation therapy for chronic nonspecific low back pain result in better long-term outcome?
Senna MK, Machaly SA.
Source
Rheumatology and Rehabilitation Department, Mansoura Faculty of Medicine, Mansoura University, Egypt.
Abstract
STUDY DESIGN:
A prospective single blinded placebo controlled study was conducted.
OBJECTIVE:
To assess the effectiveness of spinal manipulation therapy (SMT) for the management of chronic nonspecific low back pain (LBP) and to determine the effectiveness of maintenance SMT in long-term reduction of pain and disability levels associated with chronic low back conditions after an initial phase of treatments.
SUMMARY OF BACKGROUND DATA:
SMT is a common treatment option for LBP. Numerous clinical trials have attempted to evaluate its effectiveness for different subgroups of acute and chronic LBP but the efficacy of maintenance SMT in chronic nonspecific LBP has not been studied.
METHODS:
Sixty patients, with chronic, nonspecific LBP lasting at least 6 months, were randomized to receive either (1) 12 treatments of sham SMT over a 1-month period, (2) 12 treatments, consisting of SMT over a 1-month period, but no treatments for the subsequent 9 months, or (3) 12 treatments over a 1-month period, along with "maintenance spinal manipulation" every 2 weeks for the following 9 months. To determine any difference among therapies, we measured pain and disability scores, generic health status, and back-specific patient satisfaction at baseline and at 1-, 4-, 7-, and 10-month intervals.
RESULTS:
Patients in second and third groups experienced significantly lower pain and disability scores than first group at the end of 1-month period (P = 0.0027 and 0.0029, respectively). However, only the third group that was given spinal manipulations (SM) during the follow-up period showed more improvement in pain and disability scores at the 10-month evaluation. In the nonmaintained SMT group, however, the mean pain and disability scores returned back near to their pretreatment level.
CONCLUSION:
SMT is effective for the treatment of chronic nonspecific LBP. To obtain long-term benefit, this study suggests maintenance SM after the initial intensive manipulative therapy.
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J Manipulative Physiol Ther. 2009 Jan;32(1):41-52.
Chiropractic management of tendinopathy: a literature synthesis.
Pfefer MT, Cooper SR, Uhl NL.
Source
Cleveland Chiropractic College, Overland Park, Kansas 66210, USA. mark.pfefer@cleveland.edu
Abstract
OBJECTIVE:
Chronic tendon pathology is a soft tissue condition commonly seen in chiropractic practice. Tendonitis, tendinosis, and tendinopathy are terms used to describe this clinical entity. The purpose of this article is to review interventions commonly used by doctors of chiropractic when treating tendinopathy.
METHODS:
The Scientific Commission of the Council on Chiropractic Guidelines and Practice Parameters (CCGPP) was charged with developing literature syntheses, organized by anatomical region, to evaluate and report on the evidence base for chiropractic care. This article is the outcome of this charge. As part of the CCGPP process, preliminary drafts of these articles were posted on the CCGPP Web site www.ccgpp.org (2006-8) to allow for an open process and the broadest possible mechanism for stakeholder input. A literature search was performed using the PubMed; Cumulative Index to Nursing and Allied Health Literature; Index to Chiropractic Literature; Manual, Alternative, and Natural Therapy Index System; National Guidelines Clearinghouse; Database of Abstracts of Reviews of Effects; and Turning Research Into Practice databases. The inclusion criteria were manual therapies, spinal manipulation, mobilization, tendonitis, tendinopathy, tendinosis, cryotherapy, bracing, orthotics, massage, friction massage, transverse friction massage, electrical stimulation, acupuncture, exercise, eccentric exercise, laser, and therapeutic ultrasound.
RESULTS:
There is evidence that ultrasound therapy provides clinically important improvement in the treatment of calcific tendonitis. There is limited evidence of the benefit of manipulation and mobilization in the treatment of tendinopathy. Limited evidence exists to support the use of supervised exercise, eccentric exercise, friction massage, acupuncture, laser therapy, use of bracing, orthotics, and cryotherapy in the treatment of tendinopathy.
CONCLUSION:
Chiropractors often provide a number of conservative interventions commonly used to treat tendinopathy.