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

Lumbar muscles: structure and function.

H Kalimo1, J Rantanen, T Viljanen

  • 1Department of Pathology, University of Turku, Finland.

Annals of Medicine
|October 1, 1989
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

Lower limb clinical osteoarthritis and its association with joint pain and function, and severe injuries and surgeries, in women professional football players: a cross-sectional observational study.

South African journal of sports medicine·2025
Same author

Biodegradation of inorganic drug delivery systems in subcutaneous conditions.

European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V·2017
Same author

The effect of poly (lactic-co-glycolic) acid composition on the mechanical properties of electrospun fibrous mats.

International journal of pharmaceutics·2017
Same author

The flow properties and presence of crystals in drug-polymer mixtures: Rheological investigation combined with light microscopy.

International journal of pharmaceutics·2017
Same author

Visualization and prediction of porosity in roller compacted ribbons with near-infrared chemical imaging (NIR-CI).

Journal of pharmaceutical and biomedical analysis·2015
Same author

Relationships between white matter hyperintensities, cerebral amyloid angiopathy and dementia in a population-based sample of the oldest old.

Current Alzheimer research·2013
Same journal

Effects of sub-anesthetic doses of esketamine on immune function and postoperative negative emotions in acoustic neuroma patients: a randomized clinical trial.

Annals of medicine·2026
Same journal

Postoperative outcomes of on- vs off-pump CABG in patients with HFrEF: a nationwide cohort study in Taiwan.

Annals of medicine·2026
Same journal

Population pharmacokinetic-based dose adjustment of tiapride in patients with impaired renal function.

Annals of medicine·2026
Same journal

Association of neutrophil percentage-to-albumin ratio with sepsis in infant.

Annals of medicine·2026
Same journal

Enhancing Hemoglobin Bart's hydrops fetalis syndrome prevention: a single-tube multiplex real-time PCR assay for the comprehensive detection of four significant α<sup>0</sup>-thalassemia deletions (--<sup>SEA</sup>, --<sup>THAI</sup>, --<sup>CR</sup>, and --<sup>SA</sup>) found in Thailand.

Annals of medicine·2026
Same journal

Association of non-insulin-based insulin resistance indices with the risk of aortic stenosis progression in patients with mild or moderate aortic stenosis.

Annals of medicine·2026
See all related articles

New research on lumbar muscles reveals distinct innervation and function for erector spinae and multifidus, correcting prior beliefs. Muscle fiber atrophy from inactivity can be reversed with exercise, potentially reducing back pain susceptibility.

Area of Science:

  • Anatomy
  • Physiology
  • Kinesiology

Background:

  • Previous understanding incorrectly grouped erector spinae and multifidus muscles.
  • Limited data existed on lumbar muscle fiber types and their relation to inactivity.

Purpose of the Study:

  • To clarify the distinct macroscopic anatomy, innervation, and function of lumbar muscles.
  • To investigate lumbar muscle fiber composition and the effects of inactivity and exercise.

Main Methods:

  • Review of dissection studies on lumbar muscle anatomy and innervation.
  • Analysis of muscle fiber type composition and atrophy.
  • Correlation of findings with functional anatomy and back pain susceptibility.

Main Results:

Related Experiment Videos

  • Erector spinae and multifidus muscles exhibit significantly different innervation and function, refuting their classification as a single unit.
  • Selective atrophy of fast-twitch muscle fibers in the lumbar region is linked to inactivity in both back pain patients and sedentary individuals.
  • This atrophy can be reversed through appropriate exercise.

Conclusions:

  • The distinct neuroanatomy of the multifidus muscle has implications for neurophysiological assessments.
  • Lumbar muscle fiber type composition and atrophy influence susceptibility to low back pain.
  • Targeted exercise can potentially mitigate back pain risk by addressing muscle atrophy.