Evidence map›Paper›PMID 32067059›Full record

ArticleInternational urogynecology journal2020

Electromyography of pelvic floor muscles with true differential versus faux differential electrode configuration.

Claudia Ballmer, Patric Eichelberger, Monika Leitner, Helene Moser, Helena Luginbuehl, Annette Kuhn, Lorenz Radlinger

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In one paragraph

Article in International urogynecology journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.7field-weighted citation impact, top 30% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 8 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Claudia BallmerDepartment of Health Professions, Division of Physiotherapy, Bern University of Applied Sciences, Bern, Switzerland. c.ballmer@eblcom.ch.ORCID http://orcid.org/0000-0001-7766-6562
Patric EichelbergerDepartment of Health Professions, Division of Physiotherapy, Bern University of Applied Sciences, Bern, Switzerland.
Monika LeitnerDepartment of Health Professions, Division of Physiotherapy, Bern University of Applied Sciences, Bern, Switzerland.
Helene MoserDepartment of Health Professions, Division of Physiotherapy, Bern University of Applied Sciences, Bern, Switzerland.
Helena LuginbuehlDepartment of Health Professions, Division of Physiotherapy, Bern University of Applied Sciences, Bern, Switzerland.
Annette KuhnUrogynaecology, Bern University and University Hospital, Women's Hospital, Bern, Switzerland.
Lorenz RadlingerDepartment of Health Professions, Division of Physiotherapy, Bern University of Applied Sciences, Bern, Switzerland.
Bern University of Applied Sciences · CHUniversity Hospital of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introduction and hypothesisIn pelvic floor muscle (PFM) electromyography (EMG) two different bipolar configurations are applied: "true differential" configuration (TD) measures neuromuscular activity with two ipsilateral electrodes, whereas "faux differential" configuration (FD) has two electrodes placed on each side of the PFMs. The aim of the study was to determine possible differences and the relationship between both configurations.

methodsA secondary data analysis of 28 continent (CON) and 22 stress urinary incontinent (SUI) women was performed. Surface EMG was measured using a vaginal probe during maximal voluntary (MVC) and fast voluntary (FVC) contractions. TD and FD were explored with amplitude- and time-related EMG parameters, cross-correlation coefficients (R(0)) and statistical parametric mapping (SPM).

resultsOf a total of 62 comparisons of EMG parameters of MVC and FVC, only one comparison showed significant differences between the two configurations (CON group, FVC

conclusionsThe findings suggest that TD and FD might measure neuromuscular activity almost the same. Very high cross-correlation coefficients and a very limited number of significant results from EMG parameters, as well as SPM, suggest that in the measured sample the choice of TD or FD might remain practically irrelevant. To gain further insight into the scientific and clinical relevance of choosing either of the electrode configurations, the comparisons should be re-evaluated on a sample with more severe incontinence symptoms.

Indexed as

Pelvic FloorUrinary Incontinence, StressElectrodesElectromyographyFemaleHumansMuscle ContractionCross-correlationMuscle activationStatistical parametric mappingUrinary incontinenceVaginal probe

Identifiers

PMID32067059
OpenAlexW3005781056

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.