Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

A computer algorithm for defining the group electromyographic profile from individual gait profiles

R A Bogey1, L A Barnes, J Perry

  • 1Pathokinesiology Service, Rancho Los Amigos Medical Center, Downey, CA.

Archives of Physical Medicine and Rehabilitation
|March 1, 1993
PubMed
Summary

This study developed algorithms to create a group electromyographic (EMG) profile for the soleus muscle during walking. The mean intensity profile (MIP) closely matched the grand ensemble average (GEAV), showing extended muscle activity.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Comprehensive Observations of Magnetospheric Particle Acceleration, Sources, and Sinks (COMPASS): A Mission Concept to Explore the Extremes of Jupiter's Magnetosphere.

Space science reviews·2026
Same author

Perceptions of chemoprevention among individuals at high risk of oral cancer: qualitative study within the UK-based SAVER trial.

BMJ open·2025
Same author

Performance across the isokinetic velocity spectrum: Interpretation for individuals after anterior cruciate ligament reconstruction.

Clinical biomechanics (Bristol, Avon)·2025
Same author

Erratum: Centrality-Dependent Modification of Jet-Production Rates in Deuteron-Gold Collisions at sqrt[s_{NN}]=200  GeV [Phys. Rev. Lett. 116, 122301 (2016)].

Physical review letters·2025
Same author

Genetic Variations in TrkB.T1 Isoform and Their Association with Somatic and Psychological Symptoms in Individuals with IBS.

medRxiv : the preprint server for health sciences·2023
Same author

Measurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at sqrt[s]=510  GeV in p[over →]+p[over →] Collisions.

Physical review letters·2023

Area of Science:

  • Biomechanics
  • Human Movement Analysis
  • Electrophysiology

Background:

  • Electromyography (EMG) is crucial for understanding muscle activity during locomotion.
  • Establishing a representative group EMG profile aids in analyzing normal walking patterns.
  • Previous methods for group EMG profile generation have limitations.

Purpose of the Study:

  • To develop and validate computer algorithms for generating a group electromyographic (EMG) profile of the soleus muscle during level walking.
  • To compare different algorithmic approaches for constructing group EMG profiles.
  • To assess the characteristics of the generated group EMG profiles against a control group.

Main Methods:

  • Developed two algorithms: time-adjusted mean profile (TAMP) and mean intensity profile (MIP).

Related Experiment Videos

  • Recorded soleus muscle EMG from 50 healthy adults during free-speed level walking.
  • Normalized EMG data and constructed group profiles using TAMP, MIP, and a grand ensemble average (GEAV).
  • Established a control group based on individual EMG profile timing and intensity.

    • Main Results:

    • A high correlation (omega 2 > .995) was observed between the MIP and GEAV methods.
    • Both MIP and GEAV profiles demonstrated significantly earlier muscle onset, later cessation, and longer duration compared to control values.
    • No significant differences were found between TAMP and mean values for any measured parameter.

    Conclusions:

    • The mean intensity profile (MIP) algorithm effectively represents the group EMG profile for the soleus muscle during walking.
    • The developed algorithms reveal extended soleus muscle activation patterns during normal walking compared to controls.
    • MIP is a reliable method for creating group EMG profiles in biomechanical studies.