Entries Tagged 'biomechanics' ↓

mechanics – feather vs bowling ball

Compare the two falling with air resistance. And then in a vacuum.

Click PLAY or watch it on YouTube.

(via iflscience)

Kelli Hill – kip cast handstand

Click PLAY or watch it on Facebook. The YouTube version is geoblocked for some nonsensical reason.

male gymnasts better than female at landing

Male gymnasts are, as a group, far more skilled at landing.

That’s partly strength. Partly technique.

Uchimura STICK

Compare Uchimura’s soft-as-a-cat landing to this surprisingly typical WAG landing.

Aliya landing

What Aliya did on that Beam dismount was to “punch’ on landing, instead of bringing impact forces to zero. She had no controlled landing. WAG judges are far too lenient on landing deductions (aside from the stupid ‘chest low’ rule). WAG gives very little reward to excellent landings.

Dr. George advises the gymnast see the landing as soon as possible. Reduce forces to zero by absorbing over time and distance.

open on landing
Leg Impact and Landing

USA WAG has added a 0.1 “stick” bonus for 2014. Let’s see if that helps. Gummi points out that the stick bonus may also result in more injuries in competition, especially on twisting landings like Amanar.

related – Coaching Youth Gymnastics by USA Gymnastics: SAFE landings

(via wogymnastika)

___ Update:

Here is Aliya landing that dismount in the Olympics. Quite a bit better.

Aliya Beam dismount

(via wogymnastika)

SAFE landings

Coaching Youth GymnasticsA safe landing is one where the body is at least risk of injury. And where impact forces are brought to zero in the most efficient, consistent ways.

I disagree with this next excerpt from Coaching Youth Gymnastics by USA Gymnastics:

… Straight spine to keep the neck stable and prevent falling forward

No bending forward at the waist …

This is not a good landing.


The spine is a shock absorber. The gymnast should use ‘trunk flexion / extension’ to absorb force.

This next excerpt also makes no sense to me:

Arms extended to the front, straight and level with the heart in order to keep chest up on the landing


Arms should be relaxed, slightly bent at the elbow, wider than shoulder width to help balance. Gymnasts should land as softly as possible. Like a cat. Like this cat. :-)


There’s no reason to keep the chest up other than to keep some judge happy.

When will this book be next edited?

USAG Safe Landing

If you’d like to see the source of those excerpts, see them on the Human Kinetics site.

272 pages © 2011Book or eBook – $19.95

Australia adopts Championship Gymnastics

Good news from one of our advertisers:

Championship Gymnastics: Biomechanical Techniques for Shaping Winners has been adopted by Gymnastics Australia …, as the compulsory textbook for their course accreditation programs throughout the country. This applies specifically to the Advanced, Advanced Silver, and High Performance Courses (Course Levels 3-5).

more information

related – Australian WAG Levels Program revision DRAFT

introducing free hip

BEST resources:

Search YouTube for …
JAOVideos: Bounce Gymnastics Girls Team

The Back Hip Circle Process (JAO)

The Clear Hip Process (JAO)

Teaching Casts to Little Ones (JAO)

• Joe Langley 200+ Bar videos (formerly American Gymnast videos)



Here’s a 9min video overview of teaching the skill, a low resolution video of one of my Powerpoint presentations.

• use safety strap bar as much as possible
• follow the JAO tutorials, best available for young female gymnasts

Click PLAY or watch it on YouTube.

Leave comment or links if you have any other essential drills for introducing Free Hip.

backward handspring analysis


Click PLAY or watch it on YouTube.

That’s the latest sneak preview from Gymneo’s English language tutorial library being launched this Fall.

It’s a paid service, but between September 5 and September 25, 2014, a subscription is half price for 1 year — that’s €109.50 instead of €219 (US$149.50 instead of US$299).


One comment I’d add. If you allow beginners to do standing backward handspring on a flat, hard Floor, you are almost guaranteed problems. Instead, have them train down an incline where gravity assists.

Gymnastics in Saudi Arabia

FIG posted the official write up of our week long MAG Academy Level 1:

For the second time, the International Gymnastics Federation (FIG) organised a joint Olympic Solidarity-FIG Academy in close collaboration with the International Olympic Committee’s (IOC) Olympic Solidarity Programme (OS). The Gymnastics Federation of Saudi Arabia hosted this event on June 4-11, 2014, in the capital city Riyadh.

Saudi Arabia became the 57th FIG member federation to host an Academy. …

Twenty-one coaches attended the Academy. Twenty were from Saudi Arabia and one from Yemen. …

Saudi Arabia MAG L1 participants 2014

The highest results were shared by Hashem Alhashem of Saudi Arabia and Ebrahim Alabdali of Yemen. The third best result was achieved by Maki Almobireek of Saudi Arabia. …

read more – Saudi Arabia joints list of FIG Academy host countries

The exam in Academy Level 1 is challenging, including detailed anatomy and biomechanics. Half the course is Theory, half Practical.

Gymnastics lecture

Saudi Tsuk

The National Training Center in Riyadh is an excellent facility. Men’s Artistic Gymnastics only, however.

I was pleased to be asked to assist course leader Chris Evans of Great Britain at this one. He’s done many Academies in many disciplines going all the way back to Academy #2.

Chris and Rick

In the Kingdom everyone stops 5 times a day for prayer. Conveniently in the Riyadh gym, coaches and gymnasts use the Floor Exercise mat.

Saudi prayer

a few more photos

Japanese robot vs Epke

How long before these Japanese robots can do release move series like Olympic Champion Epke Zonderland?

Click PLAY or watch Geinger and Gaylord 2 on YouTube.

It can do Kovacs and Triple back dismount, as well

(via gymnastikfabriken)

Amanar – Paseka v Maroney

The private GymFever2012 group is discussing this.

An incredible difference in air time.


Is it possible that the speed of the two .gifs is different?

Or is Maroney that much higher?

Janssen-Fritsen research

Check what’s happening in the Netherlands “lab” gym.

Click PLAY or watch it on YouTube.

“tangent of release”

You cannot change the path of the centre of gravity after release.

tangent release

G.S. George – Tangent-Release Principle

mechanics of Giant swing

Dr. Gerald George. Adapted from Championship Gymnastics.

click for larger version

click for larger version

Jim Stephenson Illustrator