Humeroulnar Joint (Elbow Hinge)

Join this free martial arts wiki & community. Add info & help beginners with Shotokan Kata, Kicks, Punches, Grappling, Taekwondo Forms & Patterns, Aikido, Goju-Ryu, Krav Maga, Bo Staff, Judo, Kyokushin, etc. Fitness & sports experts can help with Hojo Undo, Strength Training, Core Exercises, Warm-Ups, Balance, Stretching, etc. Meet your fellow martial artists by joining our Wiki Community.

Page Revision Date - 18 May 2015 01:36

Humeroulnar Joint (Elbow Hinge) - is the main source of movement for extension and flexion of the arm.

Bones: Humerus and ulnar.

Cartilage: There is a capsule sealing the two bones together.

Ligaments: Ulnar collateral ligament, which holds the bones together.

Tendon: Of the triceps brachii attaching by the olecranon process (bony tip of the elbow).

Muscles: The triceps brachii contracts, extending the joint moving the arm away from the body. The hing is able to bend in the opposite direction but there is no muscle attached to both of these bones that is responsible.

Joint type: Hinge.

Mechanics: The triceps are often under rated by people wanting big (showy) biceps. For example using the triceps is the main force of extending the arms and pushing the body in an elbows in push up. Many strikes like chops involve the forearm shooting out with high speed and power all caused by the the triceps.

Range of motion: The mechanical force of this joint only moves in one direction so that the ulnar is is straight and inline with the humerus.

Injury: Falling on the olecranon process can break the bone, rip the tendon and ligaments thus proper falls should be practiced.

Minipulation: This joint goes no further than 180 degrees in line with the humerus, therefor pressure or a strike to the back of the elbow after it being fully extended can cause immense damage to every portion of the joint.

This joint makes "half" of the elbow joint, the other being the Humeroradial Joint (Stabilizer) which moves the forearm in the opposite direction.

For information on additional joints please refer back to the Joints page.


Join the Black Belt Wiki Community
We hope you will join our free martial arts wiki & community.
Talk to fellow martial artists. Ask & answer questions. Discuss techniques.
You can also join via Facebook.

Wiki Recommendations by Google

New Community Posts

Please visit the wiki community to see the most recent members posts. However, we have listed below some of the top-rated posts added by our members to the wiki's social community. FYI - These are not wiki pages but rather are fantastic member generated martial arts questions & answers. We hope you become a member.

Highly Rated Posts on the Wiki Community




At no extra cost to you, Black Belt Wiki makes a small commission if you buy products via these Amazon links. Your purchase helps keep this wiki free for all visitors. Thank you for your support!




If you spot a typo, non-working video or missing information, please tell us & we will fix immediately!
Also help beginners & add your knowledge to this free wiki.



Material on this wiki may not be copied or reproduced without the written approval of Black Belt Wiki.
All rights reserved. For other terms & conditions, please read our legal disclaimer. This site is for informational purposes only. All martial arts techniques and fitness exercises should be supervised by a trained martial arts instructor in order to prevent injuries and to ensure the proper technique is utilized. If you have had an injury or are in pain, please see a doctor before starting or continuing any martial arts and/or physical fitness program.


Join the Black Belt Wiki Community
We hope you will join our free martial arts wiki & community.
Talk to your fellow martial artists. Ask & answer questions.
You can also join via Facebook.



Wiki
Martial Arts Products

Wiki - Mugs, Hats, Bags, T-Shirts & More