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Effect of chiropractic manipulative therapy on reaction time in special operations forces military personnel: a randomized controlled trial.

ABSTRACT: BACKGROUND:Chiropractic manipulative therapy (CMT) has been shown to improve reaction time in some clinical studies. Slight changes in reaction time can be critical for military personnel, such as special operation forces (SOF). This trial was conducted to test whether CMT could lead to improved reaction and response time in combat-ready SOF-qualified personnel reporting little or no pain. METHODS:This prospective, randomized controlled trial was conducted at Blanchfield Army Community Hospital, Fort Campbell, KY, USA. Active-duty US military participants over the age of 19?years carrying an SOF designation were eligible. Participants were randomly allocated to CMT or wait-list control. One group received four CMT treatments while the other received no treatment within the 2-week trial period. Assessment included simple hand/foot reaction time, choice reaction time, and Fitts' Law and whole-body response time. On visits 1 and 5, the same five assessments were conducted immediately pre- and post-treatment for the CMT group and before and after a 10-min wait period for the wait-list group. Primary outcomes included between-group differences for the pre-CMT/wait-list period at visit 1 and visit 5 for each test. Secondary outcomes included between-group differences in immediate pre- and post-(within visit) changes. Analysis of covariance was used for all data analysis. RESULTS:One hundred and seventy-five SOF-qualified personnel were screened for eligibility; 120 participants were enrolled, with 60 randomly allocated to each group. Due to technical problems resulting in inconsistent data collection, data from 77 participants were analyzed for simple hand/foot reaction time. The mean ± standard deviation (SD) age was 33.0 ± 5.6?years and all participants were male. No between-group statistically significant differences were found for any of the five biomechanical tests, except immediate pre- and post-changes in favor of the CMT group in whole-body response time at both assessment visits. There were four adverse events, none related to trial participation. CONCLUSIONS:A single session of CMT was shown to have an immediate effect of reducing the time required for asymptomatic SOF qualified personnel to complete a complex whole-body motor response task. However, sustained reduction in reaction or response time from five tests compared with a wait-list control group was not observed following three sessions of CMT. TRIAL REGISTRATION:ClinicalTrials.gov, NCT02168153 . Registered on 12 June 2014.

SUBMITTER: DeVocht JW

PROVIDER: S-EPMC6318970 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Effect of chiropractic manipulative therapy on reaction time in special operations forces military personnel: a randomized controlled trial.

DeVocht James W JW Vining Robert R Smith Dean L DL Long Cynthia C Jones Thomas T Goertz Christine C

Trials 20190103 1

<h4>Background</h4>Chiropractic manipulative therapy (CMT) has been shown to improve reaction time in some clinical studies. Slight changes in reaction time can be critical for military personnel, such as special operation forces (SOF). This trial was conducted to test whether CMT could lead to improved reaction and response time in combat-ready SOF-qualified personnel reporting little or no pain.<h4>Methods</h4>This prospective, randomized controlled trial was conducted at Blanchfield Army Comm ...[more]

PMID: 30606225

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Project description:Chiropractic care is commonly used to treat musculoskeletal conditions and has been endorsed by clinical practice guidelines as being evidence-based and cost-effective for the treatment of patients with low back pain. Gaps in the literature exist regarding the physiological outcomes of chiropractic treatment. Previous pilot work has indicated the possibility of improvements in response time following the application of chiropractic treatment. However, it is unknown whether or not chiropractic treatment is able to improve reaction and response times in specific populations of interest. One such population is the U.S. military special operation forces' (SOF) personnel.This study is a randomized controlled trial of 120 asymptomatic volunteer SOF personnel. All participants are examined by a study doctor of chiropractic (DC) for eligibility prior to randomization. The participants are randomly allocated to either a treatment group receiving four treatments of chiropractic manipulative therapy (CMT) over 2 weeks or to a wait-list control group. The wait-list group does not receive any treatment but has assessments at the same time interval as the treatment group. The outcome measures are simple reaction times for dominant hand and dominant foot, choice reaction time with prompts calling for either hand or either foot, response time using Fitts' law tasks for small movements involving eye-hand coordination, and brief whole body movements using the t-wall, a commercially available product. At the first visit, all five tests are completed so that participants can familiarize themselves with the equipment and protocol. Assessments at the second and the final visits are used for data analysis.SOF personnel are highly motivated and extremely physically fit individuals whose occupation requires reaction times that are as quick as possible during the course of their assigned duties. A goal of CMT is to maximize the functionality and integration of the neuromusculoskeletal systems. Therefore, chiropractic treatment may be able to optimize the capacity of the numerous components of those systems, resulting in improved reaction time. The objective of this study is to test the hypothesis that CMT improves reaction and response times in asymptomatic SOF personnel.ClinicalTrials.gov, NCT02168153 . Registered on 12 June 2014.

Project description:BackgroundAustere fracture immobilization equipment and techniques are often overlooked, with few studies critically evaluating the process. The purpose of this study was to evaluate current austere splinting techniques and equipment used for lower extremity fractures while field testing a new 1-step spray-on foam splint.MethodsThis is a prospective analysis of austere splinting techniques. A cadaveric model with a distal third tibia-fibula fracture was used for testing. The specimens were placed in an austere environment and participants immobilized the injury with standard equipment (structural aluminum malleable [SAM] splint, 6-in. ACE wrap) while being critically evaluated. The specimens were also immobilized with a 1-step in-situ foam splint.ResultsTwenty-one military Special Operations medical personnel participated. Each participant was observed and scored by a single orthopedic foot and ankle surgeon using a Likert scale based on 10 splinting criteria. Standard splinting resulted in an average score of 32.2 (range, 5-50), with significant deficiencies in fracture traction (1/5), fracture motion (2.9/5), protection of neurovascular structures (3/5), and soft tissue manipulation (3/5). The average time to completion was 203 seconds, with 1 splint failure. The spray-on foam splinting technique yielded a significantly higher score of 48.5 while completing the task significantly faster (68 seconds), with no failures.ConclusionSpecial Operations medical personnel demonstrated success in immobilizing a complex fracture with standard techniques in a cadaveric model. However, testing demonstrated the inherent inability of the SAM splint to provide longitudinal traction while simultaneously allowing excessive fracture motion and potential injury to the soft tissues. In comparison, our spray-on foam proof of concept technique eliminated motion by allowing an in situ application with adequate rigidity.Clinical relevanceThis experiment included a likert scale to critically evaluate splinting techniques and equipment. It reliably tested standard splinting equipment and a 1-step in-situ foam splint for distal third tibia-fibula fractures.

Project description:Low back pain is highly prevalent and one of the most common causes of disability in U.S. armed forces personnel. Currently, no single therapeutic method has been established as a gold standard treatment for this increasingly prevalent condition. One commonly used treatment, which has demonstrated consistent positive outcomes in terms of pain and function within a civilian population is spinal manipulative therapy provided by doctors of chiropractic. Chiropractic care, delivered within a multidisciplinary framework in military healthcare settings, has the potential to help improve clinical outcomes for military personnel with low back pain. However, its effectiveness in a military setting has not been well established. The primary objective of this study is to evaluate changes in pain and disability in active duty service members with low back pain who are allocated to receive usual medical care plus chiropractic care versus treatment with usual medical care alone.This pragmatic comparative effectiveness trial will enroll 750 active duty service members with low back pain at three military treatment facilities within the United States (250 from each site) who will be allocated to receive usual medical care plus chiropractic care or usual medical care alone for 6 weeks. Primary outcomes will include the numerical rating scale for pain intensity and the Roland-Morris Disability Questionnaire at week 6. Patient reported outcomes of pain, disability, bothersomeness, and back pain function will be collected at 2, 4, 6, and 12 weeks from allocation.Because low back pain is one of the leading causes of disability among U.S. military personnel, it is important to find pragmatic and conservative treatments that will treat low back pain and preserve low back function so that military readiness is maintained. Thus, it is important to evaluate the effects of the addition of chiropractic care to usual medical care on low back pain and disability.The trial discussed in this article was registered in ClinicalTrials.gov with the NCT01692275 Date of registration: 6 September 2012.

Project description:BACKGROUND:Low back pain (LBP) is a common cause of disability among U.S. military personnel. Approximately 20% of all diagnoses resulting in disability discharges are linked to back-related conditions. Because LBP can negatively influence trunk muscle strength, balance, and endurance, the military readiness of active-duty military personnel with LBP is potentially compromised. Chiropractic care may facilitate the strengthening of trunk muscles, the alteration of sensory and motor signaling, and a reduction in pain sensitivity, which may contribute to improving strength, balance, and endurance for individuals with LBP. This trial will assess the effects of chiropractic care on strength, balance, and endurance for active-duty military personnel with LBP. METHODS/DESIGN:This randomized controlled trial will allocate 110 active-duty military service members aged 18-40 with non-surgical acute, subacute, or chronic LBP with pain severity of ?2/10 within the past 24?h. All study procedures are conducted at a single military treatment facility within the continental United States. Participants are recruited through recruitment materials approved by the institutional review board, such as posters and flyers, as well as through provider referrals. Group assignment occurs through computer-generated random allocation to either the study intervention (chiropractic care) or the control group (waiting list) for a 4-week period. Chiropractic care consists primarily of spinal manipulation at a frequency and duration determined by a chiropractic practitioner. Strength, balance, and endurance outcomes are obtained at baseline and after 4?weeks. The primary outcome is a change between baseline and 4?weeks of peak isometric strength, which is measured by pulling on a bimanual handle in a semi-squat position. Secondary outcomes include balance time during a single-leg standing test and trunk muscle endurance with the Biering-Sorensen test. Patient-reported outcomes include pain severity, disability measured with the Roland Morris Disability Questionnaire, symptom bothersomeness, PROMIS-29, Fear Avoidance Beliefs Questionnaire, expectations of care, physical activity, and global improvement. DISCUSSION:This trial may help inform further research on biological mechanisms related to manual therapies employed by chiropractic practitioners. TRIAL REGISTRATION:ClinicalTrials.gov, NCT02670148 Registered on 1 February 2016.

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Effect of chiropractic manipulative therapy on reaction time in special operations forces military personnel: a randomized controlled trial.

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Effect of chiropractic manipulative therapy on reaction time in special operations forces military personnel: a randomized controlled trial.

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