Dan Cleather Profile picture
Oct 3, 2018 12 tweets 2 min read Read on X
#AnotherDynamicSystemsTheoryRant

A big problem with justifying training by appealing to DST is that no one really understands it properly (including, I would suggest, most of its proponents).
However, because proponents of DST seem so confident in their delivery, they can appear to have some advanced knowledge of training (this is why they like it).
This can be intimidating to coaches - they don't want to appear stupid by challenging something they don't properly understand.
Strength and conditioning coaches shouldn't be afraid to call out rubbish when they see it.
My take on the use of DST is that it seems to be an excuse to just focus on the kinematic similarity of resistance training exercises to sport skills.
It provides a rationale for people to discount the importance of the other ways in which exercises can be mechanically similar to skills (most often encapsulated in the criteria of dynamic correspondence).
It also seems to make people forget fundamental training principles like progressive overload.
It does allow people to invent lots of funky exercises - people like being creative.
It is essentially a more complicated version of the "specificity trap" for people who are more knowledgeable about training.
I posted this quote a couple of weeks ago:

"High-flown words do not scare the Anarchists, because they know that these words simply conceal ignorance - that is uncompleted investigation - or, what is much worse, mere superstition."

- Petr Kropotkin
I would go further. High-flown words can also be used to manipulate and deceive.
Personally, I am generally suspicious as to the motivation of those who use needlessly complicated models and terminology.

• • •

Missing some Tweet in this thread? You can try to force a refresh
 

Keep Current with Dan Cleather

Dan Cleather Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

PDF

Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @dr_jump_uk

Oct 1, 2018
#BadWeightliftingCoaching Part 2:

I'm always surprised by how many (experienced) coaches think that the bar is supposed to bang against the thigh/hips during the pull.
Do they really believe it is possible to "knee" the bar upwards? Not to mention that this seems like a pretty painful strategy.
It is another example of people only being able to coach what they can see. In weightlifting, the knees come forwards underneath the bar, and then it pops upwards (due to the athlete jumping). To the untrained eye this can look like the bar being "banged" upwards.
Read 8 tweets
Sep 1, 2018
What is the theory in Dynamic Systems Theory? (thread/rant)

#WhyDoPeopleMakeEverythingSoComplicated
Dynamics is part of Classical (Newtonian) Mechanics.

Biomechanics is the application of classical mechanics to biological systems.
In dynamics we model (describe) change by a system of differential equations.

In order to find the state of the thing we are modelling at any given time we need to solve these differential equations.
Read 17 tweets
Aug 27, 2018
#BadWeightliftingCoaching (thread)

One of @stevemagness's "Rules of Everything" is "We overemphasise the importance of what we can measure and what we already know".

Similarly, in skills coaching we overemphasise the importance of what we can see.
In Olympic weightlifting, one of the easiest positions to see is the so called “triple extension” that occurs at the end of the pull.

This leads many coaches to spend a great deal of time working on this position.
However, emphasising the triple extended position often leads to a bad result. The athlete spends too long at the end of the pull, when they should already be preparing to catch the bar.
Read 11 tweets
Aug 20, 2018
#SquattingIsABalanceSkill2018: The Twitter Remix

Warning: this will be a long thread.

To be effective in your coaching you need to know why errors happen.

In squatting, most errors are due to the fact that athletes are afraid they are going to fall over.
When we squat, we need to keep the projection of our centre of mass (the arrow in the picture), within our base of support (the pink area in the picture). If the arrow moves outside of our base of support we will fall over.
A common cue is "push the hips back to start the squat". As the athlete pushes their hips back, the projection of the centre of mass (PCOM) moves backwards. When the PCOM reaches the edge of the base of support (BOS), the athlete can't squat any deeper using this strategy.
Read 39 tweets
Aug 15, 2018
#ForceVectorTheory. A force is, by definition, a vector. The name of the theory is thus a tautology and should really just be “Force Theory”. I thus propose the new name #TheoryOfTheMagicalHorizontalForceMuscle which more accurately captures the fundamental idea behind the theory
Biomechanics 101 - understand the distinction between global (relative to the world) and local (relative to the athlete) frames of reference. When people refer to “horizontal” forces they generally mean in the global frame #TheoryOfTheMagicalHorizontalForceMuscle
When an athlete wants to apply more “horizontal” force, they will have more body lean. The athlete is more horizontal relative to the global frame. #TheoryOfTheMagicalHorizontalForceMuscle
Read 14 tweets

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Don't want to be a Premium member but still want to support us?

Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal

Or Donate anonymously using crypto!

Ethereum

0xfe58350B80634f60Fa6Dc149a72b4DFbc17D341E copy

Bitcoin

3ATGMxNzCUFzxpMCHL5sWSt4DVtS8UqXpi copy

Thank you for your support!

Follow Us!

:(