Entries Tagged 'sport science' ↓

NEW Science of Gymnastics Journal

First issue in the 4th year of publication.

Ivan Cuk
Editorial

PUBLIC SPORTS POLICY: THE IMPACT OF THE ATHLETE SCHOLARSHIP PROGRAM ON BRAZILIAN MEN’S ARTISTIC GYMNASTICS

BODY COMPOSITION PROFILE OF ELITE GROUP RHYTHMIC GYMNASTS

SELF-ESTEEM AND TRAIT ANXIETY IN GIRLS PRACTICING COMPETITIVE AND RECREATIONAL GYMNASTICS

CHANGES IN GYMNASTS MOTOR ABILITIES DURING THE NINE MONTH TRAINING PROCESS OF FEMALE GYMNASTS 5-6 YEARS OF AGE

THE EFFECT OF DIFFERENT TEACHING SYSTEMS IN LEARNING RHYTHMIC GYMNASTICS APPARATUS

JUDGING PERFORMANCE IN GYMNASTICS:A MATTER OF MOTOR OR VISUAL EXPERIENCE?

MODELING THE FINAL SCORE IN ARTISTIC GYMNASTICS BY DIFFERENT WEIGHTS OF DIFFICULTY AND EXECUTION

read it free here

Jessica Savona – interview

Savona“, as she’s called, is one of the top Canadian gymnasts, having enjoyed success at Rotterdam Worlds, Pan-Ams Mexico, Wild Rose and Gymnix. She was injured last summer competing at the Tokyo Cup and has just returned to full training.

Savona (far right) silver medal team Pan-Ams 2010

GC: You’ve now had ACL surgery on both knees. How does this recovery compare with your first?

My first ACL was tough for me, but it was a different kind of surgery. Back in May 2008, I had surgery on my right knee, and they used my patella tendon to replace the ACL. That recovery was difficult because I had to let the screws / fractures heal into my bones, as well as let my patella tendon heal. It was 6 months before I was able to do anything!

August 2011 — after the injury at Tokyo Cup — I had surgery on my left knee. Instead of replacing the ACL using my own tissue, I got an allograft. Healing has been much faster and far less painful. It’s been only 5 months since surgery and I’m able to do SO MUCH already.

At 5 months with my other knee, I could barely run. Having just been cleared to train, I can already vault!

I do feel some pain, but it is nothing compared to the first knee. (Which is perfect now, by the way.) I expect to be back at 100% relatively soon.

GC: Mustafina had a similar injury a few months before you. Are there any other gymnasts you’ve known who’ve had to come back?

My coach, Kelly Manjak, tells me of the many gymnasts he’s known to come back 100%. Aliya will do it — and I will too.

GC: What’s the hardest thing about recovery?

Personally, the hardest thing is holding myself back. When I feel fresh and powerful, I, as do other gymnasts, feel the need and urge to do more and push myself beyond what I am supposed to do.

Another thing I found difficult this time, was finding things to do in my spare time. Training had many limitations, and my cardio exercises often depended on how strong my knee felt that day.

Also, I only have/had the heart for gymnastics, so I really had to force myself to exercise in other ways even though I hated doing so.

Are there any upsides?

The only good thing about having had 2 knee surgeries is that after the first one, I knew what to expect: what to do, what not to do and when I should do what. I’ve played it safe knowing that the main goal is the 2012 Olympics.

What is your “recovery” timeline for 2012? … When do you want to compete?

I really want to be able to compete at Elite Canada. If I can make that my first meet, even if I compete only some apparatus, that would mark the beginning of my 2012 year. I do not expect to be perfect my first few meets, I just want to put myself out there and get back to competing. Aliya’s first meet back was inspiring. I’d love to do the same thing.

I will be my only judge and no one can tell me otherwise. Give me time and I will make sure that I prepare myself for the most important meets, those that determine the Canadian Olympic team!

(We qualified in London! Thanks Team!)

GC: Are you interested in continuing to College gymnastics?

I’m focused on Olympics first, but I do aspire to compete in the NCAA! I have my sights set on a few Universities, and will apply for a scholarship to the school that’s best for me. And best for them.

GC … Why are you online so much? ?

I am ALWAYS online because (as many may know), I am a very social person. Sometimes I do not get the chance to see my friends or talk to them because I am busy with gym and school, so I take advantage of the World Wide Web to connect with the world beyond my reach! I have gymnastics friends all over the world.

Jessica was just cleared by medical for full training.

Click PLAY or watch day 3 of full training on YouTube.

Kyle Shewfelt sees Canada in the top 8 at Olympics. With a healthy Savona, I’d bump that up to top 6. This team could have everything: experience, leadership and good balance on all 4 apparatus.

treating concussion

This is Sidney Crosby, the best player in Ice Hockey today.

… In 2010–11, Crosby sustained a concussion as a result of hits to the head in back-to-back games. The injury left him sidelined for ten-and-a-half months. …

Crosby, Concussions and You

… Here, at the elite Neurotrauma Impact Science Laboratory, researchers led by Blaine Hoshizaki are reconstructing a hit similar to Crosby’s first one to establish the relationship between helmet performance and how concussions occur. …

Hits to the head: Scientists explain Sidney Crosby’s concussion

There’s never been a more studied concussion injury. Crosby is a beloved God come to earth in Canada.

… A survey showed the NHL averages 51 to 89 concussion per year

Concussion, repercussion

Sid returned on November 21, 2011 against the New York Islanders, scoring two goals and two assists in a 5–0 shutout win. Smart move his team waiting until they were sure he was healthy.

Sidney should have been taken out after the first of his two hits. But athletes want to get up and keep fighting. Coaches and medics need intervene.

The same thing happened at World Championships 2011. Yusuke Tanaka had an obvious concussion on Floor in prelims, yet his team coaches and medical staff kept him in the meet. Dr. Michel Léglise for FIG and meet medical officials made no intervention.

Has there been any follow-up on Yusuke?

I know he opted out of All Japan Championships.

related:

Sidney Crosby’s concussion a teaching tool

• Canadian Press – A timeline of Sidney Crosby’s concussion and recovery

_____

Discovery Channel visited Syd the Kid’s doctor to see how he was treated. Unconventional therapy — spinning in a gyroscope.

Watch it here. It starts at 1min 20sec.

Unproven science, be aware.

Thanks for the link George.

sole circle Tkachev easier

According to this research paper by Gareth Irwin, Michelle Manning and David G. Kerwin in Wales:

Biomechanics in Sport – KINEMATICS AND ANGULAR MOMENTUM CONTRIBUTIONS TO THE TOE-ON TKACHEV ON UNEVEN BARS IN FEMALE GYMNASTICS

CONCLUSION: The Toe-on Tkachev on Uneven bars … enables gymnasts to increase key release variables, particularly vertical velocity, (and hence flight time) and angular momentum. …

read the full article (slow loading)

It appears that even skills like layout Tkachev might even be easier from sole circle than from giant.

towards a Smart Springboard

Ivan Cuk, Samo Penic & Dejan Krizaj at the University of Ljubljana in Slovenia have been experimenting with technology for measuring springboard actions on Vault.

The new device is composed of a processor unit with LCD display and is connected to accelerometer sensors that are placed under the top desk of the springboard.

accelerations velocities are calculated … and several parameters such as time to maximal springboard compression and maximal velocity at take-off are determined and displayed. The data is directly transferred to a PC for further analysis ….

Matlab software was used to record, filter and analyze the measured data.

Results are in good agreement with simultaneously obtained results from the force plate and laser displacement sensor measurements (similar time and vertical velocity).

With developed equipment it will be possible to determine typical springboard action parameters for individual gymnast, optimal springboard parameters for a required jump, to analyze repeatability of springboard jumps, to analyze transverse movements and to optimize training and its efficiency. The developed device has good potential for use as a fast information system as well as a device for suitable science/research projects in vaulting.

Details in this PDF – TOWARDS A SMART SPRINGBOARD (CASE STUDY)

I saw that posted in the latest issue of the Science of Gymnastics Journal.

Jaeger double front?

We’ve not yet seen anyone compete the Jaeger with an extra salto. A recent article linked from Science of Gymnastics Journal analyzed the skill.

… From the data it can be concluded, that the double Jaeger is possible in either tucked or piked body posture …

Despite its feasibility, there may be … arguments why the Jaeger Salto on the high bar is not performed that often in international competitions, and potentially, why the double Jaeger may not be attractive for gymnasts to learn as compared to other release-regrasp skills.

… the Jaeger salto is a forward salto during which the athlete “sees” the high bar relatively late prior to regrasp, and therefore has less time to adjust the regrasp based on visual information, as compared to other flight elements, like the Tkatschev (Gervais & Tally, 1993; Raab, de Oliveira & Heinen, 2009).

… the athlete has to reverse the direction of his rotation when regrasping the bar, as compared to other flight elements, like the Kovacs Salto if he intends to perform a subsequent giant swing. …

Download the full research article – WHAT IT TAKES TO DO THE DOUBLE JAEGER ON THE HIGH BAR (PDF)

by Thomas Heinen, Damian Jeraj, Pia M. Vinken, Katharina Knieps,
Konstantinos Velentzas & Hedi Richter

NEW Science of Gymnastics Journal

The latest issue – editor Ivan Cuk.

Read it here. Free.

research on the Weller spring

This is the latest in a series of posts on the new Weller spring. It can be swapped into a standard AAI.

Valeri Liukin, Sean Townsend, Justin Spring, Jonathan Horton, Danell Lleyva, Yin Alvarez and others tried and like the Weller spring invented and patented by Scott Weller. The in-gym feedback has been positive.

Dr. Bills Sands did one series of tests comparing the Weller spring vs the AAI springs, used in most gyms in the States.

Dr. Sands concluded that there was not enough difference between the two to recommend the Weller.

Not surprisingly, Scott Weller disagrees with the findings. Read on Facebook – OPEN LETTER TO USA GYMNASTICS, USA GYMNASTS, PARENTS, COACHES, COUNTRYMEN, ETC.

It will be some time before the research is published. But Bill Sands is the best there is in gymnastics research. I’ve no doubt his findings will be irrefutable.

… Yet that doesn’t mean that the Weller spring is not a big improvement over what we have now. Merely that the first scientific study couldn’t determine why. I’d trust the gut intuition of an elite coach over any number of research papers when it comes to equipment innovation.

If you want to buy and try Weller springs, email scott@kingbarssports.com

If you’ve tried them and have an opinion, leave a comment. Thanks.

Bills Sands test the Weller spring

Scott Weller of Weller Spring has been promoting his new revolutionary design for a Floor Exercise spring. Athletes who try it, like it. And a few clubs like WOGA have installed Weller springs into their gym.

But what he really needs is a respected 3rd party to scientifically measure and report the differences between the Weller spring and standard AAI springs, used in most gyms in the States.

Ideally, he’d get Dr. Bill Sands to do the research …

Click PLAY or watch it on YouTube. (13min)

It will be some time before Dr. Sands reports. Follow progress by LIKING the Weller Spring Facebook page.

If you want to buy some Weller springs for yourself, email scott@kingbarssports.com.

Scott wants readers of this site to know you can get a 25% discount by using the code “purple” at checkout on wellerspring.com.

cheering Bella Tucker

Bella Tucker is a “young gymnast who came down with a near fatal infection on Easter (2010) and underwent quadruple amputation surgery”.

Cathie Lowell, Owner of Phantom Gymnastics reports on Bella’s progress:

… We are happy to report that Bella’s spirits are high despite a few setbacks and additional operations during the last month. She has been in both the Children’s Hospital and the Spaulding Rehabilitation Hospital in Boston. She has begun some physical therapy to strengthen her core, getting her ready for the Shriner’s hospital in Philadelphia where the real work will begin. Bella will receive prosthetics and she and her family remain hopeful and encouraged.

Bella celebrated her ninth birthday on Aug 12. She continues to have lots of visitors and has learned to use her electric wheel chair, which she operates with her elbow, to get around the hospital and garden. …

She’s also become proficient with her iPad, which allows her to use Facebook to view and respond to posts! …

read more on USAG

_____ KP sends update links:

My original post was much outdated. Bella got home before Christmas last year. She now has her own website. And Facebook page. Donations are gratefully accepted at both.

This is a great post - Bella returned to the gym!

I wonder if she’s yet seen Nick Vujicic’s video “I LOVE LIVING LIFE. I AM HAPPY.”

The Science of Gymnastics

A new text for coaches from Routledge Sport Science is now available everywhere, contributors including Bill Sands and John Salmela, titled The Science of Gymnastics.

Several people have told me it’s good.

• energetic, physical and physiological assessment
• training principles
• diet, nutrition and supplementation
• growth and development issues
• kinetics and kinematics
• angular and linear motion
• angular momentum
• stress, anxiety and coping
• motivation and goal setting
• mental skills training for practice and competition
• the psychology of learning and performance.

Amazon

It’s available in paperback or ebook for $54.95. From that same Routledge link you can preview some pages free. University instructors can request a Complimentary Exam Copy.

weird back handspring machine

Rosamond and Yeadon at Loughborough University, U.K. created this …

… study was carried out to design, construct and assess a training aid to assist in the learning of a backward handspring. …

Though they consulted many expert coaches, I doubt any of those experts would ever use this machine.

To see how it worked, download that 2009 research study – The biomechanical design of a training aid for a backward handspring in gymnastics (PDF)

Gymnastics TC meetings

FIG Men’s Technical Committee Meeting
Lausanne (SUI), February 19 – 21, 2011

The Committee’s President Adrian Stoica (ROU) was very satisfied with the meeting’s outcome, stating:

“With the new World Cup format and the modified qualifying system for the Olympic Games we have implemented important changes in 2011 and look forward to an interesting year. …

FIG

There are a lot of good minds on that committee. I’ve nothing but respect for Steve BUTCHER and Istvan KARACSONY.

Edouard IAROV is one of the 2-3 coaches that have influenced me most.

Sadly they’ll not make significant improvements to the rules on Floor and H Bar until after the Olympics. It’s too late in the cycle.

It was a busy week at the FIG offices. WTC met, as well. And the Sport Science Commission had a meeting of the minds on the effects of intensive gymnastics training.