Evidence of in-vivo myofascial force transfer in humans- a systematic scoping review.

BACKGROUND: The fascial system not only enables the body to operate in an integrated manner but modifies its tension in response to the stress on it. Recent animal, cadaveric and in-vitro trials have shown that "myofascial force transmission" (MFT) can play a major role in homeostasis, musculoskeletal function and pain. Human evidence for the in-vivo existence of MFT is scarce. OBJECTIVE: This scoping review attempts to gather and interpret the available evidence of the in-vivo existence of MFT in humans, its role in homeostasis, and musculoskeletal function. METHOD: A search of major databases using the keywords 'myofascial force transmission' and 'epimuscular force transmission' yielded 247 articles as of November 2021. For the final analysis, only original in-vivo human studies were considered. In-vitro human studies, cadaveric or animal studies, reviews, and similar studies were excluded. A qualitative analysis of the studies was conducted after rating it with the Oxford's Center for Evidence -based Medicine (CEBM) scale. RESULT: Twenty studies ranging from randomized controlled trials (RCTs) to case studies covering 405 patients have been included in this review. The analysed trials were highly heterogeneous and of lower methodological quality meddling with the quantitative analysis. The majority of the appraised studies demonstrated a higher probability of MFT existence, while two studies revealed a lower probability. CONCLUSION: Our search for proof of the in vivo existence of MFT in humans has led us to support such an existence, albeit prudently. Previous research on animals and human cadavers reinforces our finding. We are optimistic that the forthcoming studies on the topic will pave the way for the unraveling of several musculoskeletal riddles that are currently unknown or less well-known.

Role of fascial connectivity in musculoskeletal dysfunctions: A narrative review.

INTRODUCTION: Musculoskeletal dysfunctions happen to be the most common reason for referral to physiotherapy and manual therapy services. Therapists use several articular and/or soft tissue concepts/approaches to evaluate and treat such dysfunctions that may include integration of myofascial system. Despite the research in this area spanning more than three decades, the role played by fascia has not received its duly deserved attention, owing to the lack of definitive research evidence. The concept of 'fascial connectivity' evolved two decades ago from a simple anatomical hypothesis called 'myofascial meridians'. Since then it has been widely researched, as conceptually it makes more sense for functional movements than 'single-muscle' theory. Researchers have been exploring its existence and role in musculoskeletal dysfunctions and clinicians continue to practice based on anecdotal evidence. This narrative review attempts to gather available evidence, in order to support and facilitate further research that can enhance evidence based practice in this field. METHODS: A search of most major databases was conducted with relevant keywords that yielded 272 articles as of December 2019. Thirty five articles were included for final review with level of evidence ranging from 3b to 2a (as per Center of Evidence Based Medicine's scoring). RESULTS: Findings from cadaveric, animal and human studies supports the claim of fascial connectivity to neighboring structures in the course of specific muscle-fascia chains that may have significant clinical implications. Current research (level 2) supports the existence of certain myofascial connections and their potential role in the manifestation of musculoskeletal dysfunctions and their treatment. CONCLUSION: Although these reviews and trials yield positive evidence for the objective reality/existence of fascial connectivity and continuity, several aspects need further exploration and in-depth analysis, which could not be evidenced entirely in this review. Manual and physical therapists may utilize the concept of fascial connectivity as a convincing justification to deal with clinical problems, but need to remain vigilant that functional implications are still being investigated.

Improving the quality of myofascial release research - A critical appraisal of systematic reviews.

INTRODUCTION: Myofascial release (MFR) is a form of manual therapy that involves the application of a low load, long duration stretch to the myofascial complex intended to restore optimal length, decrease pain and improve function. MFR is being used to treat patients with a wide variety of conditions, with favourable evidence supporting its efficacy. Critical appraisal of the recent research trials or reviews aims to improve the quality and reliability of future works in this field. OBJECTIVE: This work attempts to examine and categorize the strength and limitations of current MFR research by critically appraising recent systematic reviews (SRs) to synthesise recommendations for improving quality and reliability of future clinical trials. METHODOLOGY: SRs on MFR published until 2018 were selected for this analysis. The methodological qualities of the SRs were assessed by AMSTAR II tool. RESULTS: The SRs demonstrated moderate methodological quality. The overall confidence rating of the results of the review by AMSTAR II was low to moderate, mainly due to the omission of a risk of bias analysis in two of the reviews. CONCLUSION: This review concludes that the SRs analysed were completed with moderate methodological quality, but with procedural weaknesses and interpretation biases. The most recent review was qualitatively superior due to the inclusion of risk of bias analysis and effect size calculation. This critical appraisal and the derived recommendations can act as 'stepping stones' on which high quality future MFR trials and evidence can be built.