Evidence map›Paper›PMID 33840592›Full record

Trial reportBrazilian journal of physical therapy

Effects of different electrical stimulation currents and phase durations on submaximal and maximum torque, efficiency, and discomfort: a randomized crossover trial.

Natália Lucília Pinto Damo, Karenina Arrais Modesto, Ivo Vieira de Sousa Neto, Martim Bottaro, Nicolas Babault, João Luiz Quaglioti Durigan

Registry-linked trialOpen access · bronzeAbstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Brazilian journal of physical therapy. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05894044 (Effects of Different Modalities of Medium and Low Frequency Electrical Stimulation in the Generation of Evoked Torque, Sensory Discomfort, Muscle Fatigue and Inheritance Peripheral Oxygen Supply in the Triceps Surae Muscle.), which is not on this map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.8field-weighted citation impact, top 31% 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.

NCT05894044 naunknown statusnot on this map

Effects of Different Modalities of Medium and Low Frequency Electrical Stimulation in the Generation of Evoked Torque, Sensory Discomfort, Muscle Fatigue and Inheritance Peripheral Oxygen Supply in the Triceps Surae Muscle.

TypeinterventionalSponsorUniversity of BrasiliaRan2023 to 2024Enrolled44ConditionsHealthyArmsRussian current 10%, Aussie current 10%, Pulsed current 500 µs phase, Pulsed current 200 µs phase
3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 15 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Article
  5. Review
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

6 authors at 2 institutions in 2 countries.

Natália Lucília Pinto DamoGraduate Program in Rehabilitation Sciences, Universidade de Brasília, Brasília, DF, Brazil.
Karenina Arrais ModestoGraduate Program in Rehabilitation Sciences, Universidade de Brasília, Brasília, DF, Brazil.
Ivo Vieira de Sousa NetoGraduate Program of Sciences and Technology of Health, Universidade de Brasília, Brasília, DF, Brazil.
Martim BottaroCollege of Physical Education Department, Universidade de Brasília, Brasília, DF, Brazil.
Nicolas BabaultINSERM U1093 CAPS, Faculty of Sport Sciences, University of Burgundy, Dijon, France.
João Luiz Quaglioti DuriganGraduate Program in Rehabilitation Sciences, Universidade de Brasília, Brasília, DF, Brazil. Electronic address: joaodurigan@gmail.com.
Universidade de Brasília · BRInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNeuromuscular electrical stimulation (NMES) is an important therapeutic tool for rehabilitation. However, best stimulation parameters remain to be determined.

objectiveTo determine the influence of different electrical stimulation currents and phase durations on torque, efficiency, and discomfort.

methodsUsing a cross-over design, kHz frequency alternating currents (KFAC) and pulsed currents (PC) with narrow (200 µs) or wide (500 µs) phase durations were randomly applied on knee extensor muscles of healthy participants with a minimum of seven days between sessions. The NMES-evoked torque, NMES-efficiency, and discomfort (visual 0-10 cm analogue scale) were measured for each stimulation intensity increments (10 mA). Statistics were conducted using a three-way analysis of variances (phase duration x current x intensity), followed by Tukey post-hoc.

resultsTwenty-four males (age 22.3 ± 3.5years) were included. No effect of NMES current was observed for torque, efficiency, and discomfort. For wide phase durations (500 µs), torque significantly increased for all stimulation intensities. For narrow phase durations (200 µs) evoked torque significantly increased only after 40% of maximal stimulation intensity. Phase durations of 500 µs produced greater torque than 200 µs. Discomfort was greater with 500 µs when compared to 200 µs. Submaximal relative torque, for example 40% of maximum voluntary contraction (MVC), was obtained with ∼ 60% and ∼ 80% of the maximal current intensity for 500 µs and 200 µs, respectively.

conclusionKFAC and PC current applied with the same phase duration induced similar relative submaximal and maximum evoked-torque, efficiency, and perceived discomfort. However, currents with 500 µs induced higher evoked-torque, current efficiency, and perceived discomfort.

Indexed as

Electric Stimulation TherapyQuadriceps MuscleAdolescentAdultCross-Over StudiesElectric StimulationHumansIsometric ContractionKneeMaleMuscle, SkeletalTorqueYoung AdultNeuromuscular electrical stimulationPhysical therapyRehabilitation

Identifiers

PMID33840592
PMCPMC8536851
OpenAlexW3140784764

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.