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

Variation of the ulnar variance with powerful grip.

M Sönmez1, U T Turaçlar, F Taş

  • 1Department of Anatomy, Medical Faculty, Cumhuriyet University, 58140 Sivas, Turkey. msonmez@cumhuriyet.edu.tr

Surgical and Radiologic Anatomy : SRA
|October 11, 2002
PubMed
Summary

Powerful grip significantly increases ulnar variance, the distance between the ulna and radius in the wrist. This finding is crucial for understanding wrist biomechanics and planning surgical treatments for wrist disorders.

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

Effect of different semen extenders on cat epididymal semen cryopreservation.

Cryo letters·2025
Same author

Effects of propolis supplementation during cryopreservation of ram semen.

Iranian journal of veterinary research·2025
Same author

Ameliorative effects of Ganoderma lucidum (Reishi) on testicular tissue of rats exposed to bisphenol A.

Polish journal of veterinary sciences·2024
Same author

Determination of the cryoprotective effect of n-methylacetamide in rabbit semen.

Cryo letters·2024
Same author

The effect of luteolin on spermatological parameters, apoptosis, oxidative stress rate in freezing rabbit semen.

Polish journal of veterinary sciences·2023
Same author

Cardio-protective effect of dapagliflozin against doxorubicin induced cardiomyopathy in rats.

European review for medical and pharmacological sciences·2022

Area of Science:

  • Orthopedics
  • Biomechanics
  • Radiology

Background:

  • Ulnar variance is causally linked to wrist disorders.
  • Gripping and pronation can alter the radius-ulna relationship, increasing ulnar variance.

Purpose of the Study:

  • To investigate how powerful grip affects ulnar variance.
  • To quantify the change in ulnar variance during maximal grip exertion.

Main Methods:

  • 41 male volunteers (19-25 years) underwent posteroanterior X-rays of their wrists.
  • X-rays were taken in a neutral position and during maximal grip exertion using a hand dynamometer.
  • Ulnar variance was measured using the perpendicular method.

Main Results:

  • Mean maximum grip force was 38.1 kg.

Related Experiment Videos

  • Mean ulnar variance increased from 0.06 mm (neutral) to 1.87 mm (forced grip) (P<0.001).
  • The mean increase in ulnar variance with grip was 1.81 mm, ranging from 0.00 to 3.97 mm.

    • Conclusions:

    • A powerful grip significantly increases ulnar variance.
    • Understanding normal ulnar variance modification with grip is important for surgical planning.
    • This study quantifies grip-induced ulnar variance changes in young males.