Tag Archives: Volleyball Practice

Ayak Bileği Yaralanmalarını Önleme

My recent post on preventing ankle injuries has been translated into Turkish by Serdar Mengi from the volleyball portal voleybolaktuel.com.  The translation appears here.

Ayak bileği burkulması, her düzeyde voleybolda en sık görülen akut yaralanmalardır. Yayınlanan bu makaleye göre, yaralanma nedeniyle kaybedilen süre, toplam sürenin % 30’unu oluşturuyor. Bu nedenle, teknik direktör mantıksal olarak, ekibindeki ayak bileği burkulmalarının sayısını ve şiddetini azaltması gerektiğinin farkında olmalıdır. Burkulmayı önlemek için, mantıksal olarak oyuncuların ayak bileklerini bantladığını ve / veya birkaç farklı ayak bileği koruyucusu kullandığı görülüyor. Ancak belki de bu tür bir yaralanmayı önlemek için daha fazla şey yapmamız gerekiyor. Sorunu biraz inceleyecek olursak.

Göz önüne alınması gereken ilk şey, ayak bileğindeki burkulmaların yaygın olması. Biz en yaygın voleybol yaralanmalarının bu olduğunu biliyoruz, fakat aslında bu gerçek mi?  2014 Dünya Şampiyona’sında, her 420 maçtan birinde, tek bir voleybalcu için bir ayak bileği burkulma ihtimalinin çok yüksek olduğu hesaplandı. Farklı bir bakış açısıyla baktığımızda, son iki sezonda bir ayak bileği burkulması yaşadım. Her oyuncunun sezon başına 50 net eylemi geçekleştirdiği var sayılırsa (hücum + blok gibi), bu 17.500 potansiyel yaralanmaya denk gelir. Pasörleri  ve liberoları çıkartacak olursanız, takımda on oyuncu kalır ve  iki sezon boyunca 175,000 potansiyel yaralanma, 1 gerçek sakatlık gerçekleşti. Bilinen ayak bileği burkulmaları yaygın bir voleybol yaralanması olduğudur, aslında bu kadar yaygın değildir. Aslında, bu miktar şaşırtıcı derecede nadirdirler.

Şimdi bir ayak bileği burkulmasının gerçekleşmesini düşünelim. En basit haliyle, iki (veya daha fazla) kişi aynı zemini kullanmaya çalıştığında bir ayak bileği burkulması oluşur. Ayak bileği burkulmalarını önlemenin en belirgin yolu, iki oyuncunun aynı zemini kullanmaya çalışmamasını sağlamaktır. Bunların daha az bir kısmı ise, koçun uygun sistem ve yapıları yerine getirmediğinden kaynaklanmaktadır. Her durumda sistem ve yapılar net olmalıdır.  Bu aynı zamanda taktiksel olarak mantıklıdır, çünkü aynı bölgede yer alan iki oyuncu karışıklığa neden olur ve diğer alanları açık bırakır. Oyuncu yerleşiminde ve aynı yerde yer almalarının önemli bir nedeni de olan vesilelerin çoğunluğu konsantrasyon eksikliğinden kaynaklanmaktadır. Son on yılda, konsantrasyon eksikliğinden kaynaklanmayan, içinde bulunduğum herhangi bir uygulamada tek bir ayak bileği burkulması hatırlamıyorum. Bu, genel olarak odaklanma eksikliği veya yorulmadan kaynaklanabilir. Tecrübelerime dayanarak söyleyebilirim ki, oyuncuların sıklıkla yorgun düştükleri ve en az odaklandıkları sezonun son ayında ayak bileği burkulmalarının% 80’i ortaya çıkıyor.

Özetlemek gerekirse, ayak bileği burkulması inanılmaz derecede nadirdir. Ve bu nadir sakatlığı önlemenin en iyi yolları ; iyi bir yerleşim sistemi, Eğitim ve antremanları iyi yönetmek, tamamen odaklanmaya yönelik bir ortam oluşturmaktır.


Read about the great new Vyacheslav Platonov coaching book here.

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Preventing Ankle Injuries

Ankle sprains are the most common acute injuries in volleyball at all levels.  According to this article on volleycountry.com they account for 30% of all time lost due to injury.  Logically therefore the coach must be aware of how to decrease the number and severity of ankle sprains in his team.  And so we will see players taping their ankles and / or wearing one of a number of different types of ankle braces.  Logical indeed.  But maybe we need to do more to prevent this kind of injury.  Let’s study the problem a little bit.

The first thing to consider is just how common are ankle sprains.  We know that they are the most common volleyball injuries, but are they actually common?  For the 2014 World Championships, I did a (very) rough calculation that an ankle sprain was likely to occur to an individual volleyballer about once every 420 matches.  Looking at it a different way, in the last two seasons I have had one ankle sprain.  (Very) roughly, that is 350 trainings and matches.  If every player has 50 net actions (spikes + blocks, ie potential injuries) per session, that comes to 17,500 potential injuries.  If you take out setters and liberos, leaving ten players in the team, that is 175,000 potential injuries over the two seasons, resulting in exactly one (1) actual injury.  It is obvious that while ankle sprains are a common volleyball injury, they are not actually common. In fact, they are astonishingly rare.

Let us now consider the mechanism of an ankle sprain.  In the simplest form, an ankle sprain occurs when two (or more) people try to use the exact same piece of floor*.  The most obvious way to prevent ankle sprains is to ensure that two players don’t try to use the piece of floor.  A small number of these are due to the the coach not having appropriate systems and structures in place.  The systems and structures must be clear in every situation.  This is also tactically logical, as two players occupying the same area both creates confusion and leaves other areas open.  The rest, and therefore vast majority, of occasions where two players are in the same space are simply due to lack of concentration.  In the last ten years, I don’t recall a single ankle sprain in any practice I have been involved in that was not the direct result of lack of concentration.  That can be caused by general lack of focus, or distraction, or by fatigue.  I can take that one step further, in my experience, 80% of ankle sprains occur in the last month of the season when players are often at their most fatigued and least focussed.

To summarise, ankle sprains are incredibly rare.  And the best way to prevent these incredibly rare events is have good systems in place, manage the training / competition load, ie fatigue, appropriately and maintain a focussed training environment.

Actually, that is just good coaching.


*Yes, sometimes players just fall over and sprain their ankles, but I think under the circumstances we can remove that situation from our consideration.


Read about the great new Vyacheslav Platonov coaching book here.

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The Hockey Error

A lot, or at least a few, sports count assists among their statistics.  That is, the pass that leads to a score.  In volleyball, at least in America, a set that leads to a spike point is an assist. In basketball, a pass that leads to a basket is an assist.  But in hockey, not only the pass that leads to a goal counts as an assist, but also the pass that leads to the pass that leads to a goal counts as an assist.  In some circles (i.e. Bill Simmons), that kind of assist is referred to a ‘hockey assist’.

In volleyball there are a lot of structural / organisational / communication errors where the fault seems to be obvious.

  • A tip falls in front of a defender.  The fault is obviously that the defender to not commit to defending the ball.  The obvious solution is to berate them for lack of effort and possibly some drill to encourage the player to change their habit.
  • A middle blocker has a chance to set a high ball but commits a ball handling error.  The obvious solution is to berate them for their lack of technical skill and possibly some drill to improve that technical ability.

You get the idea.  The wrong player receives the ball.  The wrong player sets the ball.  A player touches the net.  All simple errors with obvious solutions.

But what if things aren’t so simple.  What if there is such a thing as a ‘hockey error’.  I have written before that what looks like a lack of effort is most often actually a lack of readiness. In that example, the lack of effort is the error and the lack of readiness is the hockey error.  In the middle blocker setting example, the hockey error is probably not turning fast enough after landing from the block.  Many errors that are attributed to lack of calling, have as their hockey error a player moving towards the ball and then stopping.  Being in the wrong position is the hockey error in many different situations.

As a coach, focussing on the error can have some improvement on performance.  But focussing on the hockey error can have a profound effect on understanding of the game.


Read about the great new Vyacheslav Platonov coaching book here.

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Are We Doing It Wrong?

go

There was a story a week or so ago about a computer program beating the world’s best Go players. Apparently Go is an ancient Chinese game that has more or less an infinite number of possible moves and is therefore considered to be the ultimate test of artificial intelligence (AI)*.  I know nothing about either Go or AI but apparently this is a big deal.  The original article is hidden behind a pay wall, but I was able to pull out a couple of quotes that sparked a spot of thinking.

“The (computer program) made moves that seemed foolish but inevitably led to victory over the world’s best players.”

This quote seems to suggest that the computer understood the game and played it in a completely different way to humans have been playing it.  On that theme the current world champion was quoted as saying,

“After humanity spent thousands of years improving tactics, computers tell us humans are completely wrong.  I would go as far as to say that not a single human has touched the edge of the truth of Go.”

As I am avowed questioner of conventional wisdom these thoughts really piqued my interest and obviously I thought about applying them to volleyball.  Like everything, there is a set of parameters about the game that are accepted as conventional wisdom.  For example, according to the rules a team is allowed only three contacts.  The conventional wisdom is that using all three contacts is the most effective way of playing.  But is it?  As I have written about earlier, Frenchman Earvin N’Gapeth has become famous for, among other things, not always using three contacts. Watching him live I was struck by how obvious those plays actually are. Once you accept that it is possible, his actions are the easiest and best solutions.  I would say that nearly everything we do In practice, is in some way based on conventional wisdom.  For some coaches more than others, but there is a lot of it there.

The computer who won in Go won by playing in a different way than people who were locked into a way of thinking going back thousands of years.  What would happen if that computer decided to try to play volleyball?  Would it use three contacts every time?  I think, deep down,  we already know the answer is no.  Would spikers jump off two feet?  Would there be such a thing as the underarm pass?  Would we train in the same way?  And if the answer to any of those questions is no, what would the alternative be?  How would the computer solve the problem of the game?

I don’t think any of us has touched the edge of the truth of volleyball.

The Coaching Is Not In The Interventions

There is a common quote applying to music that I first heard in a Phil Jackson book but have heard in varying forms many times since,

“Music is the space between the notes.”

The quote has been attributed among others to Claude Debussy, and it always makes me think about things like the interactions and relationships in the playing of whatever game is being talked about at the time.  A few days ago I read something that made me think of this idea directly in relation to coaching.

Most people think of coaching as being what the coach does during the game, the timeouts, the substitutions or if we want to go into real ‘depth’, the starting rotation.  Some smarter people understand that what happens in practice is equally important, the drills done, the feedback given, the time taken, the conduct of practice.

The moment I had was when it occurred to me that all of those things are interventions.  The notes, if you will.  But just as music is not in the notes, the coaching is not in the interventions.  The coaching is in the timing of the interventions.  It is choosing the moment when the feedback will have the greatest impact.  It is not giving any verbal feedback at all but allowing the player or team to learn the lesson by themselves.  It is allowing the errors that lead to learning.  It is not jumping up and down on the sideline berating players or the referee but trusting the team to carry out the vision of the game you have taught them in practice.

In short, the coaching is not in the interventions. The coaching is in the space between the interventions.


Read about the great new Vyacheslav Platonov coaching book here.

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Training Goals

There is a lot of research that shows the best kind of practice the coach should do with his team.  The best kind of practice that a coach should do with his team is distributed practice.  Distributed practice provides the best conditions for learning and importantly the retention of the learning.  That is clear.  Everyone knows that*.  So it logically follows that distributed practice is always the best way to practice.  Or does it?

What if the goal of a particular practice session is NOT learning? What if the goal is team building? Or active recovery? Or providing feedback? Or developing a common language?  Or improving communication? If the goal of practice is not learning then is it necessary to use only distributed practice formats?

The practice below was originally recorded by Volleywood for a Facebook Live Event.  The goal of the practice activation.  The team had had two free days prior to this practice.  Contrary to popular belief, professional athletes are not better when they have had free time and tend to be fairly sluggish.  Sometimes practice can look like the players have never met each other, or a ball, before.  In such cases, to prevent practice being an essential dead loss, we can have a morning practice that activates the nervous system and muscles, in preparation for the days that follow.  In that case we want to have simple activities and movements that allow a player to get back in communication with his body and with the ball.

The video quality is not perfect, and it wasn’t recorded with the view of being a training aid, but you can get the idea.


*Sadly, not everyone knows that.  But they should.

Shooting Blind – A Life Without Feedback

This week my club president invited the team and staff for a casual get together / get to know you / team building activity at a local gun club.  If you think about it, it is a logical place to hold a team get together.  I mean what brings a group of men more enjoyment than shooting stuff?  Oh, you can think of a few things, eh? Well, anyway that is where we went.  After struggling for a few minutes with the personal morality of shooting a gun at all (particularly as I don’t want my son to have even a toy gun), I decided to join in.  It was an interesting experience.

The first problem I had was that I wasn’t wearing my glasses.  This wasn’t an issue about seeing the target, or not, but an issue of not being able to see what I hit.  I took careful aim at the target, carefully squeezed the trigger and off in the distance there was a cloud of dust.  I had no clue whether I had hit anything in between those events.  I was shooting blind.  I realised that without being able to see the target I had no feedback on what I was doing.  Between series I was able to see the target and eventually piece together some information.

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In the picture on the right you can see the 8 and 6 below the bullseye were in my 3rd series.  The 10, 9 and 8 were in my 4th series.  With feedback, I could quickly improve.

Oddly, considering how many millions of times I have seen it, I am much better able to ‘see’ where a ball lands after having spent a season working with the video challenge system in the Polish League.  For the first time in my over 30 year involvement with volleyball I have had actual feedback on where a ball has landed.  It turns out that is important too.  Who would have thought.

The lesson is, as always, there is no learning without feedback.