Techniques for Registration of Myoelectric Activity of Women's Pelvic Floor Muscles: A Scoping Review.

INTRODUCTION AND HYPOTHESIS: Surface electromyography is commonly applied to measure the electrophysiological activity of the neuromuscular system. However, there is no consensus regarding the best protocol to assess pelvic floor muscles. METHODS: A scoping literature review was carried out in six databases, using MeSH descriptors. It included studies with electromyographic assessment in adult women presenting or not with pelvic floor dysfunction. The results were presented in categories to contribute to the development of a protocol considering the most used parameters for non-invasive assessment of myoelectric activity of pelvic floor muscles. RESULTS: A total of 1,074 articles were identified, and 146 studies were selected for analysis. The intravaginal probe was used in 80.8% of the studies, the bipolar sensor with metallic plates placed on both sides of the vagina was the most frequent (71.3%), with a reference electrode positioned on the anterior superior iliac spine (33.5%). The supine position with hip and knee flexed (45.2%) was the most frequent position used. Of the studies, 44.5% normalized the data by maximum voluntary contraction (MVC) whereas 44.5% performed an average of 3 MVCs. CONCLUSIONS: The most frequently used protocol for the pelvic floor is the bipolar intracavitary probe with metal plates positioned at 3-9 o'clock and introduced distally to the vaginal introitus with the volunteer in the supine position and the hip and knee flexed with the reference placed on the anterior-superior iliac spine.

Linking assessment instruments for brachial plexus injury to the international classification of functioning, disability and health.

BACKGROUND: Brachial plexus injuries (BPI) affect not only body structure and function, but also several aspects of individual's well-being. Considering the crescent need for assessing such patients through a biopsychosocial perspective, linking meaningful concepts of BPI instruments to the International Classification of Functioning, Disability and Health (ICF) provides a useful overview of how the ICF components are contemplated on the current measurements available. PURPOSE: To identify patient-reported outcome measures (PROMs) specifically designed for BPI assessment and link the content with the ICF. STUDY DESIGN: Content Analysis through ICF linking. METHODS: The study was conducted in two steps: the first one encompassed a literature review to identify questionnaires specifically designed for assessing patients with BPI, where two PROMs were eligible: the Brachial Assessment Tool (BrAT) and the Impact of Brachial Plexus Injury Questionnaire (IBPIQ); in the second phase, the items of such instruments were linked to the ICF by two independent reviewers, in accordance to the methodology proposed by Cieza et al. RESULTS: 54 different significant concepts were identified from the 74 questionnaire items and linked to 49 distinct ICF categories. The categories were mostly related to the activities and participation component (56.9%, n = 29), followed by body functions (27.45%, n = 14), body structures (9.8%, n = 5) and environmental factors component (1.96%, n = 1). CONCLUSION: The questionnaires developed for adults with BPI were BrAT and IBPIQ. Although both instruments presented with a diverse coverage of ICF components, their content had a major focus on activities and participation domain and poorly or did not addressed environmental factors. Thus, other instruments could be considered in a complementary way for clinical assessment.

Techniques for registration of myoelectric activity of women's pelvic floor muscles: a scoping review protocol.

OBJECTIVE: The objective of this review is to identify the most frequently used protocols for analyzing the myoelectric activity of the pelvic floor muscles during surface electromyography in women aged 18 years or older. INTRODUCTION: Surface electromyography is normally used in assessment and treatment for research purposes when it is intended to quantitatively measure the electrophysiological behavior of the neuromuscular system. However, although there are internationally standardized, non-invasive assessment protocols for most muscle groups, there is no consensus for pelvic floor muscles, which makes it difficult to standardize in scientific research and clinical applicability. INCLUSION CRITERIA: Studies that explore registration protocols and filtering parameters of surface electromyographic signals in women aged over 18 years old with or without pelvic floor dysfunction will be considered. Studies encompassing either electromyographic biofeedback as a treatment resource only or electroneuromyography (needle electrode) will be excluded. METHODS: Primary studies published in the previous 10 years in MEDLINE, Embase, Scopus, Web of Science, CINAHL, and Cochrane Central databases will be included. The search will encompass descriptors registered in MeSH. The identified articles will be assessed for eligibility by two independent reviewers in three stages: evaluation by title, abstract, and full text. If there is any disagreement, a third reviewer will be consulted. Data will be extracted and organized in standardized spreadsheets. The results will be assigned to categories in order to facilitate the organization of a protocol with the most commonly used parameters for non-invasive assessment of myoelectric activity of pelvic floor muscles.

Proprioceptive neuromuscular facilitation compared to conventional physiotherapy for adults with traumatic upper brachial plexus injury: A protocol for a randomized clinical trial.

BACKGROUND: Traumatic upper plexus injury affects daily living activities performance and participation of individuals. Physical therapy treatment has a fundamental role on functional recovery, but it is still an unexplored and challenging field. AIM: To develop a protocol to evaluate the efficacy of Proprioceptive Neuromuscular Facilitation (PNF) compared to conventional physiotherapy (CPT group) on functionality and quality of life. METHODS: A committee was formed by four physical therapists to develop the treatment protocol. A Delphi study was carried out in order to quantify the level of agreement. A protocol for a randomized controlled trial was proposed to evaluate the effectiveness of the protocol in improving functionality and quality of life, according Consolidated Standards of Reporting Trials. Participants will be randomly assigned (1:1) to PNF or CPT group and two weekly sessions will be carried out for 12 months postsurgery, with a three-month follow-up. The main outcome measurements are: upper limb functionality, quality of life, range of motion, muscle strength, tactile sensitivity, and pain, which will be assessed at baseline, on the 6th, 9th, and 12th months postsurgery. RESULT: A PNF protocol was developed for traumatic upper brachial plexus injury, consisting of 11 illustrated exercises, three for immediate postoperative and eight for postoperative. Biomechanical objectives, observations, positions of patients and therapists and PNF principles, procedures and techniques have been described. An 80% agreement on all items in the first round of the Delphi study was achieved. CONCLUSION: A protocol based on the PNF-concept was developed with the aim of improving the functionality and quality of life of individuals undergoing nerve transfer after traumatic injury to the upper plexus. The detailed description of a physical therapy treatment protocol through an appropriate method will allow its use in clinical practice and in future studies with this population.

Effect of swimming training on nerve morphological recovery after compressive injury.

OBJECTIVE: This study aims to investigate morphological alterations caused by partial sciatic nerve ligation (PNL) and the efficacy of a moderate-intensity swimming training as therapeutic strategy for nerve regeneration. METHODS: A number of 30 male adult mice were equally divided in control, 14 days after PNL (PNL 14 days), 42 days after PNL (PNL 42 days), 70 days after PNL (PNL 70 days) and 5-week exercise training after 7 days post-lesion (PNL trained 35 days) groups. PNL trained 35 days group began with a 10-min session for 3 days and this time was gradually increased by 10 min every three sessions until the animals had swum for 50 min per session. Morphoquantitative analysis was carried out to assess nerve regeneration in each group. RESULTS: PNL 14 days group exhibited less degenerating signs than PNL 42 days group, where most post-lesion alterations were visualized. Nerve area and minimum diameter were significantly lower (p < 0.05) than control group. PNL 70 days group showed a greater degree of regenerating fibers and similar morphometric parameters to control group. PNL trained 35 days demonstrated signs of regeneration, reaching control group values in the morphometric analysis. DISCUSSION: PNL promotes great histopathological changes, which became more visible at 42 post-injury days. A natural nerve-regeneration tendency was observed throughout time, as observed in PNL 70 days group; nevertheless, moderate swimming training was found to be a therapeutic resource for nerve regeneration, accelerating such process from a morphoquantitative perspective. ABBREVIATIONS: ANOVA: One-way analysis of variance; BDNF: Brain-derived neurotrophic factor; FGF-2: Fibroblast growth factor 2; GDNF: Glial cell line derived neurotrophic factor; IGF: Insulin-link growth factor; IL-1ß: Interleukin-1ß; NGF: Neural growth factor; PBS: Phosphate-buffered saline; PNL: Partial sciatic nerve ligation.