Evidence map›Paper›PMID 29769821›Full record

ArticleJournal of sports science & medicine2018

Validity and Reliability of Surface Electromyography Measurements from a Wearable Athlete Performance System.

Scott K Lynn, Casey M Watkins, Megan A Wong, Katherine Balfany, Daniel F Feeney

Registry-linked trialAbstract readValidation Study
In one paragraph

Article in Journal of sports science & medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07161531 (Evaluating Test-Retest Reliability of Surface Electromyography), which is not on this map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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.

NCT07161531 narecruitingnot on this mapstarted 2025, after this paper: background citation

Evaluating Test-Retest Reliability of Surface Electromyography (sEMG) in Measuring Fatigue in Adolescents Through Prolonged Activity

TypeinterventionalSponsorUniversiteit AntwerpenRan2025 to 2026Enrolled27ConditionsHealthy AdolescentsArmsSurface Electromyography
3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  20. Review on Smart Electro-Clothing Systems (SeCSs).Sensors (Basel, Switzerland) · 2020
    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

5 authors.

Scott K LynnCenter for Sport Performance, Department of Kinesiology, California State University Fullerton, Fullerton, CA, USA.
Casey M WatkinsAukland University of Technology, Strength and Conditioning, Auckland, NZ.
Megan A WongCardiff Metropolitan University, Cardiff, UK.
Katherine BalfanyCenter for Sport Performance, Department of Kinesiology, California State University Fullerton, Fullerton, CA, USA.
Daniel F FeeneyDepartment of Integrative Physiology, University of Colorado, Boulder, CO, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Athos ® wearable system integrates surface electromyography (sEMG ) electrodes into the construction of compression athletic apparel. The Athos system reduces the complexity and increases the portability of collecting EMG data and provides processed data to the end user. The objective of the study was to determine the reliability and validity of Athos as compared with a research grade sEMG system. Twelve healthy subjects performed 7 trials on separate days (1 baseline trial and 6 repeated trials). In each trial subjects wore the wearable sEMG system and had a research grade sEMG system's electrodes placed just distal on the same muscle, as close as possible to the wearable system's electrodes. The muscles tested were the vastus lateralis (VL), vastus medialis (VM), and biceps femoris (BF). All testing was done on an isokinetic dynamometer. Baseline testing involved performing isometric 1 repetition maximum tests for the knee extensors and flexors and three repetitions of concentric-concentric knee flexion and extension at MVC for each testing speed: 60, 180, and 300 deg/sec. Repeated trials 2-7 each comprised 9 sets where each set included three repetitions of concentric-concentric knee flexion-extension. Each repeated trial (2-7) comprised one set at each speed and percent MVC (50%, 75%, 100%) combination. The wearable system and research grade sEMG data were processed using the same methods and aligned in time. The amplitude metrics calculated from the sEMG for each repetition were the peak amplitude, sum of the linear envelope, and 95

Indexed as

ElectromyographyWearable Electronic DevicesElectrodesFemaleHumansKnee JointMaleMuscle ContractionMuscle, SkeletalMuscle Strength DynamometerReproducibility of ResultsTorqueYoung AdultAthoselectromyographyEMGWearable technology

Identifiers

PMID29769821
PMCPMC5950737

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.