Tag

bethnal green crossfit box - CrossFit London

Olympic lifting with grunts

Little did Aryna Sabalenka realise that her controversial grunting in the 2018 Australian Tennis Open could assist Olympic weightlifters in Bethnal Green E1. A short yell or kiai has always been part of martial arts, and exertion is sometimes accompanied with a bit of a grunt. But, is it a technique or tactic you should use to improve your snatch and clean and jerk?

Damian Farrow (2018) in  ‘All the Racquet: What science tells us about the pros and cons of grunting in tennis’, put the advantages of a grunt in simple terms.

Ball velocity increases with a grunt.

In fact if you check out  “The effects of grunting on serve and forehand velocities in collegiate tennis players”. You’ll see two impressive figures.

If you grunt, you get: a 3.8% increase in groundstroke-hitting velocity and a 4.9% enhancement in velocity.

According to that report “The velocity, force, and peak muscle activity during tennis serves and forehand strokes are significantly enhanced when athletes are allowed to grunt.”

And, significantly,

“Grunt history, gender, perceived advantages, and disadvantages of grunting, years of experience, highest level of competition, and order of testing did not significantly alter any of these results”

I must confess that the exact science behind this phenomenon slightly eludes me, but  allegedly, increased force on impact lies within the concept of kinetic energy. KE is the energy of motion which is transferred on impact. KE is calculated as one half of the product of mass and velocity squared.

Grunting, so brainy people say, tightens the body core which increases the mass behind the tennis strike, thereby increasing the force on impact resulting in the increased velocity of the tennis ball.

The carry over to Olympic weightlifting at CrossFit London is obvious. If you lift quietly, the chances are you are missing out on some free energy that could move the bar to where you want it.

Try grunting  when you snatch.

by Andrew Stemler

Athleat meat! Get 10% off all your orders


 
 

We have teamed up with the most prestigious grassfed meat company in the UK to offer you the best produce money can buy with our exclusive *crossfitlondon* code that will give you 10% off any order you place. Use code “crossfitlondon” at checkout.

  • Highest quality grass fed beef, free range poultry and more
  • Delivery direct to your door or to our Members at * 9/10 Malcolm Place, E2 | 3 Gales Gardens, E2*
  • An exclusive deal especially for members of *Crossfit London*

 
Get ordering your MEAT here!
 

KNOW You Should Stretch But Just Don't?

20170830_210117_resized

We’ve all bad it. You get to the end of a workout, or a long day and your muscles are tight. You know you should stretch – but life gets in the way. You don’t feel like it.

What do you do?

The answer is accountability.

Having someone, like our Bethnal green Crossfit box to hold you accountable makes sure you get done what you need to.

20170830_210110_resized

This can be a coach or a class you go to, or a friend or partner. One advantage of a class is group energy – doing something in an environment where others are doing the same makes it easier.

Whoever it is, tell them what you have to do, send them a message, tell them in person.

It doesn’t matter if they respond or not. I send messages to my accountability partner and just knowing I’ve told them makes me do it as I don’t want to admit I haven’t.

20170830_210829_resized

So next time you say you ‘have to stretch,’ tell someone else and give them a date to follow up with you by. See how much YOU can get done.

Get your stretching you know you need done, come along to a flexibility class or if you’re serious about FAST results book a ‘Less Pains, More Gains’ get-flexible 1-1 on:
07504 142211
felix@superflexcoaching.com
Felix
Our classes are at the fantastic Crossfit London Bethnal green E2