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

Back and hip extensor muscle function during therapeutic exercises.

J P Arokoski1, M Kankaanpää, T Valta

  • 1Department of Physical and Rehabilitation Medicine, Rehabilitation Clinic, Kuopio University Hospital, Finland.

Archives of Physical Medicine and Rehabilitation
|July 22, 1999
PubMed
Summary
This summary is machine-generated.

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

GWAS of Second-Generation Antihistamine Use: Locus Specificity and Highlighted Signalling Pathways.

Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology·2026
Same author

Fine structure in the <math></math>  decay of <math></math> Hg and <math></math> Au.

The European physical journal. A, Hadrons and nuclei·2025
Same author

Human pluripotent stem cell-derived cells endogenously expressing follicle-stimulating hormone receptors: modeling the function of an inactivating receptor mutation.

Molecular human reproduction·2022
Same author

Reliability and construct validity of the modified Finnish version of the 9-item patient health questionnaire and its associations within the biopsychosocial framework among female health-care workers with sub-acute or recurrent low back pain.

BMC musculoskeletal disorders·2021
Same author

Unfolding the outcomes of surgical treatment of lumbar spinal stenosis-a prospective 5- and 10-year follow-up study.

European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·2020
Same author

Genomic prediction of relapse in recipients of allogeneic haematopoietic stem cell transplantation.

Leukemia·2018

Surface electromyography (EMG) can effectively assess multifidus muscle function during therapeutic exercises. These simple exercises activate lumbar paraspinal muscles, with higher activity in women at the L5 level.

Area of Science:

  • Biomechanics and Exercise Physiology
  • Musculoskeletal Rehabilitation
  • Neuroscience

Background:

  • Therapeutic exercises are common for low back pain, but precise load targeting remains unclear.
  • Understanding paraspinal and gluteal muscle activation during exercises is crucial for effective treatment.
  • This study investigated multifidus muscle function using electromyography (EMG).

Purpose of the Study:

  • To assess paraspinal and gluteus maximus muscle activity at L2 and L5 levels during therapeutic exercises.
  • To determine the validity of surface EMG for measuring multifidus muscle function.
  • To compare muscle activation between sexes and spinal levels.

Main Methods:

  • Eleven healthy subjects (5 men, 6 women) performed 18 therapeutic exercises.

Related Experiment Videos

  • Intramuscular and surface EMG recorded paraspinal muscle activity.
  • Normalized EMG amplitudes (peak and average) were calculated as a percentage of maximal voluntary contraction (MVC).

    • Main Results:

    • High correlations (0.928–0.950) observed between intramuscular and surface EMG at L2 and L5.
    • Exercise EMG amplitudes remained below 50% (peak) and 25% (average) of MVC.
    • Women showed higher L5 multifidus activation than men; women also had higher L5 than L2 multifidus activation.

    Conclusions:

    • Surface EMG is a viable method for assessing multifidus muscle function.
    • Simple therapeutic exercises effectively activate lumbar paraspinal muscles.
    • Sex-based differences in multifidus activation exist at the L5 level.