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Background: Spinal manipulation (SM) has been hypothesized to influence the autonomic nervous system (ANS). Further, it has been proposed that the effects may vary depending on the segment manipulated. The aim of this systematic review was to synthesize the current level of evidence for SM in influencing the ANS in healthy and/or symptomatic population. Methods: Various databases (n = 8) were searched (inception till May 2023) and 14 trials (n = 618 participants) were included in the review. Two authors independently screened, extracted and assessed the risk of bias in included studies. The data were synthesized using standard mean differences and meta-analysis for the primary outcome measures. The Grading of Recommendations, Assessment, Development and Evaluation (GRADE) was used for assessing the quality of the body of evidence for each outcome of interest. Results: Overall, there was low quality evidence that SM did not influence any measure of ANS including heart rate variability (HRV), oxy-hemoglobin, blood pressure, epinephrine and nor-epinephrine. However, there was low quality evidence that cervical spine manipulation may influence high frequency parameter of HRV, indicating its influence on the parasympathetic nervous system. Conclusion: When compared with control or sham interventions, SM did not alter the ANS. Due to invalid methodologies and the low quality of included studies, findings must be interpreted with great caution. Future studies are needed which employ rigorous data collection processes to verify the true physiological implications of SM on ANS. [ABSTRACT FROM AUTHOR]

BACKGROUND: Acupoints are considered a dynamic functional area, which can reflect the internal condition of the body. In pathological states, disease-related acupoints are believed to be activated, which is known as acupoint sensitization. OBJECTIVE: This study aimed to investigate the major manifestations of acupoint sensitization in patients with chronic low back pain (cLBP) to provide better understanding of acupoint sensitization phenomena in the context of cLBP. METHODS: This study was a matched-sample cross-sectional study 16 participants diagnosed with cLBP and 16 healthy controls matched in age, sex, and ethnicity were included. The following aspects of sensitization phenomena of targeted points were compared: pressure pain threshold (PPT), skin temperature, surface electrical conductance, receptive field, and morphological change of skin. RESULTS: PPT at points of interest were significantly lower in cLBP participants compared with healthy controls (P < 0.05); in addition, receptive field was found to be larger at left BL 23 in cLBP participants (P < 0.05). There was no statistically significant difference in skin temperature, electrical conductance, or morphology between the two groups. CONCLUSIONS: Reduced PPT at all detected points and enlarged receptive field at left BL 23 were found in cLBP participants. These two features appear key in defining acupoint sensitization in cLBP, and provide evidence for selecting and locating acupuncture points in future clinical studies. [ABSTRACT FROM AUTHOR]

Objective: To investigate whether sensitivity to movement‐evoked pain (SMEP), central sensitivity symptom burden, and quantitative sensory testing (QST) outcomes differ between healthy controls and people with chronic shoulder pain. Methods: People with chronic shoulder pain (n = 39) and healthy controls (n = 26) completed validated questionnaires measuring demographic, pain characteristics, psychological factors, social support, sleep quality, central sensitivity inventory (CSI), and physical activity levels. A blinded assessor administered QST measuring pressure pain threshold, temporal summation, conditioned pain modulation, and cold hyperalgesia. All participants performed repeated lifting of weighted canisters and reported severity of pain over successive lifts of the weighted canisters. Between‐group differences in the QST, SMEP and CSI scores were investigated. Demographic and psychosocial variables were adjusted in the analyses. Results: Dynamic mechanical allodynia, mechanical temporal summation, movement‐evoked pain scores, SMEP index, and CSI scores were significantly (p ≤ 0.05) higher in the chronic shoulder pain group than in healthy controls. A significant proportion of people with chronic shoulder pain presented with pro‐nociceptive profiles and experienced higher pain severity, interference, and disability. Conclusions: People with chronic shoulder pain displayed symptoms and signs of central sensitization. Future research should investigate the predictive role of central sensitization on clinical outcomes in shoulder pain. [ABSTRACT FROM AUTHOR]

Preliminary evidence suggests that individuals with persistent post-concussion symptoms (PPCS) have a dysfunctional stress response, consisting of the autonomic nervous system (ANS) and hypothalamic pituitary adrenal-axis (HPA-axis). This review aims to explore the extent of evidence for dysfunction of the stress response in individuals with PPCS by individually mapping the literature surrounding quantifiable changes of the (1) ANS and (2) HPA-axis using non-invasive and clinical tools, and highlighting any (3) knowledge gaps. Nine electronic databases and grey literature were searched on the 1st of June 2021 and 4th of October 2021. Studies were included if their population was classified with PPCS, and their study stated at least one quantifiable marker of the ANS or HPA-axis using non-invasive and clinical tools. Relevant studies were screened, and data extracted. A total of 37 articles were included in this scoping review. The majority of studies assessed quantifiable markers of the ANS (n = 34), in comparison to the HPA-axis (n = 2), and ANS and HPA-axis (n = 1). The most common quantifiable markers of the ANS included heart rate (n = 20), blood pressure (n = 16), and heart rate variability (n = 10). Cortisol was the only included quantifiable marker of the HPA-axis (n = 2). Most of the evidence in this review supports quantifiable dysfunction of the ANS in those with PPCS. Further research is required investigating quantifiable dysfunction of the HPA-axis, and subsequently ANS and HPA-axis in unison, in those with PPCS. [ABSTRACT FROM AUTHOR]

10-15% of individuals who sustain a concussion develop persistent post-concussion symptoms (PPCS). Presently, there is no consensus regarding the pathophysiology of PPCS. Preliminary evidence suggests that individuals with PPCS have either a dysfunctional autonomic nervous system (ANS) or hypothalamic-pituitary-adrenal axis (HPA-axis). The ANS and HPA-axis collectively make up the two arms of the peripheral stress response. In the presence of a stressor, the two arms work interchangeably to return the body back to homeostasis. With concussion as the stressor, it is plausible that the development and maintenance of PPCS are due to a dysfunctional stress response. Only one study has explored the relationship between PPCS and the two arms of the stress response (ANS and HPA-axis) in combination, which presents a clear gap in the literature. The proposed protocol aims to determine the extent of evidence for dysfunction of the stress response in individuals with PPCS. This review will individually map the literature surrounding quantifiable changes in the (1) ANS and (2) HPA-axis in individuals with PPCS. The review will also highlight any (3) knowledge gaps in this emerging field of research. A scoping review study design has been chosen to facilitate a thorough literature search on this broad exploratory topic. The scoping review proposed will follow the recommended methodological guidelines. Understanding the potential role of a dysfunctional stress response in those with PPCS will create more effective treatment pathways and reduce the chronicity of this condition. [ABSTRACT FROM AUTHOR]

Shoulder pain is a common musculoskeletal complaint associated with a significant impact on health and socioeconomic outcomes. Current evidence indicates a poor understanding of the mechanisms driving shoulder pain experience. The heightened nociceptive processing (pro-nociceptive pain modulation profile) within the central nervous system could explain variability in the shoulder pain experience. This topical review and hypothesis-generating paper discuss the current evidence and gaps regarding abnormal nociceptive processing in patients with shoulder pain. This paper also proposes hypotheses to test the presence of a pro-nociceptive pain modulation profile by measuring the pain responses to conditioned pain modulation, mechanical temporal summation and movement-evoked pain procedures. Moreover, this paper proposes whether a pro-nociceptive pain modulation profile can explain the variability in the pain experience in people with shoulder pain. Gaining insights into the abnormal nociceptive processing in people with acute and chronic shoulder pain will guide future research and clinical practice to improve shoulder pain outcomes. [ABSTRACT FROM AUTHOR]

Rationale: Decision‐making in musculoskeletal health care is complex, with discrepancy among clinical providers and variation in the per cent of referrals for specialist care. To date, there is an increased focus on specialist referrals, risking overuse of expensive testing and contributing to unnecessary treatment. Aims and Objectives: This report will considerer the difficulties of primary care musculoskeletal decision‐making using shoulder injuries as an example, presenting a solution based on multi‐criteria decision‐making analysis with online software. The associated issues involved in clinical decision‐making are complex. Contributing to the components of complexity are; the multifaceted aetiology of shoulders, the experience and knowledge of providers, and the burden of patient demands. Notwithstanding, funding considerations, resource allocation availability and other associated issues around clinical decision‐making. Considering the many facets and complexities of clinical decision‐making, this is an area where multi‐criteria decision‐making analysis (MCDM) may be appropriate. The MCDM analysis approach is increasingly being used in health care and can assist in the organizing and weighting of identified key clinical factors. MCDM could be applied to the challenges of musculoskeletal care with the potential to decrease decision‐making variability. Furthermore, the significance of each key clinical factor that musculoskeletal decision‐making is based on are to date unclear. Conclusion: Therefore, this preliminary report offers a start towards clarifying key factors and an approach for implementing improved shoulder clinical care decision‐making which could then be adapted and applied to other body sites. [ABSTRACT FROM AUTHOR]

The objective was to explore the effectiveness of photobiomodulation therapy for treating patients who suffer xerostomia and/or hyposalivation due to the most prevalent clinical diagnoses. We searched PubMed, Scopus, Web of Science, CINAHL and Cochrane Library for randomized or clinical controlled trials published until 31 October 2019. Risk of bias assessment and meta‐analysis were conducted using the Cochrane tools. A total of 274 records were retrieved, and 11 met the inclusion criteria. Interventions whose parameters ranged between wavelengths of 790–830 nm (infrared), 30–120 mW of power and an energy density below 30 J/cm‐2 were associated with improvements in xerostomia/hyposalivation. As for the assessment of methodological quality, 10 of the 11 articles included had a high risk of overall bias. Only 3 articles provided sufficient information to conduct a meta‐analysis for quality of life, compared with placebo in patients with burning mouth syndrome, showing a standardized mean difference between groups from baseline of −0.90 (−1.48; −0.32). The present review and meta‐analysis suggest that photobiomodulation therapy is an effective, non‐invasive and safe approach in patients with xerostomia. However, despite the potential, it is not possible to reach a reliable consensus on the parameters to be used, and future studies should be conducted by standardizing intervention protocols. [ABSTRACT FROM AUTHOR]

Background: Chinese herbal footbaths are an external therapy of traditional Chinese medicine that has been widely used to treat dysmenorrhea. This review aims to systematically evaluate its efficacy and safety for the treatment of dysmenorrhea. Methods: Databases of PubMed, EMBASE, Cochrane Library, CIHAHL, Web of Science, Chinese National Knowledge Infrastructure(CNKI), Chinese Scientific Journals Database (VIP), Wanfang Database, China Biomedical Literature Database(CBM), and Chinese Biomedical Literature Service System (SinoMed) will be searched from the inception to September 30, 2020. The eligible randomized controlled trials (RCTs) will be identified and included. The primary outcomes include pain intensity measured by validated scales of visual analog scale, numeric rating scale, and response rate of symptom reduction. The secondary outcomes are scores on validated pain questionnaires, quality of life measured by SF-36 or other validated scales, and adverse events. Study selection, data extraction, and assessment of bias risk will be conducted by two reviewers independently. RevMan software (V.5.3.5) will be utilized to perform data synthesis. Subgroup and sensitivity analysis will be performed when necessary. The strength of the evidence will be evaluated with the Grading of Recommendations Assessment, Development and Evaluation System. Results: A high-quality synthesis of current evidence of Chinese herbal footbaths for patients with dysmenorrhea will be provided in this study. Conclusion: This systematic review will provide evidence of whether Chinese herbal footbaths are an effective and safe intervention for the treatment of dysmenorrhea. Systematic review registration: PROSPERO CRD42020188256. [ABSTRACT FROM AUTHOR]