Coaching, jumps, sprints & more
Everything about jumping and sprinting and how to improve your performance
I've been living in workout gear since my mid-teens as an athlete, as a sports science student, then international athlete, then coach, then fitness magazine editor, then coach (one constant), then master athlete ... you get the message!
I've therefore tried out quite a lot of workout gear over the years and as a sports, fitness and health writer have reviewed quite a few items.
You'll have seen on my YouTube channel various product tests of massage guns and Bioelectrical devices for example.
Well, I'll soon be checking out some workout gear from Born Tough from the US. They have a large range of products that look suitable for tough workouts (well, it's in their name isn't it!) and also more of, what do they call it these days, active leisure?
It'll be great to see what this relatively new brand has got to say.
SO LOOK OUT FOR A REVIEW OF BORN TOUGH PRODUCTS COMING SOON HERE AND ON MY SOCIAL MEDIA
IN THE MEANTIME YOU CAN CHECKOUT THEIR PRODUCT LINES AT:
Born Tough and Elite Sports
IN THE MEMBERS' AREA OF MY YOUTUBE COACHING CHANNEL THERE ARE 9 EXCLUSIVE VIDEOS WHICH DIVE INTO GREATER AND SLIGHTLY LONGER DETAIL ON VARIOUS TOPICS THAT WILL HELP SPRINT, LONG AND TRIPLE JUMP COACHES. BELOW IS THE CONTENT OVERVIEW OF THE LATEST VIDEO #9
IF YOU ARE INTERESTED IN SIGNING UP TO WATCH THIS AND THE OTHER 8 VIDEOS THEN FOLLOW THIS LINK https://www.youtube.com/channel/UCyVAgma7MDT1Wqzw40Mb13g/join
COACH ATHLETES MEMBERS' VIDEO 9 NOW LIVE PEAKING EARLY SEASON FOR PEAK PERFORMANCE ACROSS THE TRAINING YEAR
In this video we take a look at a 2-week training cycle leading up to the Olympic Trials, National u23s and English Schools multi-events qualification (June 21). Initially we consider how undulating periodisation can help establish the basis for such preparation compared to linear periodisation. This is a bit of a re-consideration of some of my earlier Coach-Athlete video content on periodisation. I do keep pushing this methodology as I actually think it is the best and easiest to use with jumpers. I'll produce some more content in this series of videos in future that further tries to help you plan your training this way. (See initially Coach-Athlete video 1.) We then take a specific look at the 2-week cycle of training which covers the aforementioned competitions and I take you through some of the sessions and some of the objectives for this phase. In short we are looking at further sharpening - speed and technique-wise and maintenance of strength and power. With undulating periodisation there is what I term a "line of optimum performance" (which is a notional ability to perform at around 90% of capacity of PB jumps and sprints-wise all year round) and the idea is to rise above this line, return to it and fall slightly below it at certain times of the season and training year (hence undulating periodisation). There are small steps either side of the line. This can contrast with linear periodisation where the rises and falls can be much greater and I believe the capacity to maintain and regain peaks throughout the year more limited. Within the video are two Coach Tips - the first considers nutrition and its relationship with peaking and the second Tonus and the creation of specific muscle tone to enable enhanced performance. I draw on the work of coach Goran Obradovic and his work with Ivana Spanovic here. As coaches we need to expand our understanding of what we can do to get the most from our athletes and that's why I include these sorts of tips in the videos. We are all learning and trying to wade through the information out there. I hope that my practical experience successes and failures and having got to the point where I have a large understanding of "What works" will speed up your coaching journey.
IMAGE CREDIT REDBULL CONTENT POOL
PEAKING AND WEIGHT TRAINING
HERE'S PART OF AN ARTICLE I WROTE ON HOW YOU CAN USE WEIGHT TRAINING TO PEAK AN ATHLETE.
It’s possible to peroiodise and peak for competitions not only via the mainstays of training but also via strength and conditioning.
There are a number of ways in which to achieve peak performances using S&C. The first and most well-known way is to enable your body to recover from the adaptation to a S&C regime (and other training inclusions). So, this would mean reducing the load of the weights, plyometrics and other S&C means in the period/periods of training leading up to a competition.
The second way is to actually use S&C to create a heightened response from your S&C training – this can include specific sessions in the days prior to a competition. Within this second method are the potentiating effects of specific S&C activities and tonus (muscle tone) outcomes.
Let’s take a look at these “peaking” options in turn.
Using S&C via reducing volume to achieve a peak
In order to achieve a peak the body must be in an adapted and recovered state. This does not mean that training loads need to be significantly reduced – although the prior intensity and volume of training will have a large effect on the extent of any reductions – that’s to say, the more training mature an athlete is in terms of volume and intensity the lower the percentage reduction of these variables needed to achieve a peak.
On the other hand, a young training immature athlete will not have the wiggle room to reduce training load in the same way and they may simply benefit before competitions from taking a day or two off.
Research exists which shows how manipulating S&C training variables can achieve a peak. Sports scientists in Sports Medicine who considered field eventers and sprint athletes noted:
“... findings indicate that to maximize the speed-strength in the short term (peaking), elite athletes should perform strength-power training twice per week. It is possible to perform a single strength-power session with the method of maximum explosive strength actions moving high-weight loads (90% 1 repetition maximum [RM]) at least 1-2 days.”
So, this conclusion is referencing speed/power athletes as indicated with a high level of specific training maturity. Why the emphasis on the “high weight loads”? Much further research indicates that lifting heavy and safely fast recruits the biggest and most powerful bundles of fast twitch fibres and the motor units which control them. The residual effect is the priming this can have on the central nervous system and what known as potentiation - another factor identified in the S&C peaking approach, of which more later.
In order to make sure that the heavy weight training is of the right intensity and volume, some trial and error will be required and the training maturity and “history” of peaking specific to the athlete must also be factored in.
If S&C is consistent over a number of years and the athlete/coach knows that certain S&C parameters are met (closeness to 1rep max and other rep max tests, distances achieved for specific plyo tests) then it will be easier to reduce S&C loads whilst keeping an eye on those peak S&C levels known to bring about peak performance.
It will also be easier to “top up” again, if as in the research quoted, specific S&C sessions are maintained throughout the season.
It’s crucial for training mature athletes and those with known peak performance producing S&C “base-line” levels that specific S&C is continued throughout the competition periods. Failure to do so, although potentially leading to an early season peak will usually result in performances dropping off in the latter part of the season when the major competitions inevitably are. So, coach and athlete need to maintain to gain and cycle their S&C accordingly (along of course with the other training variables).
Recently, I have been doing a number of presentations on the long jump. I’ve done three for Ireland Athletics, one for Belgian Athletics and another two for England. No pressure then!
Well, at least I’m talking about and showing videos on something that I am passionate about. It is almost one of those scenarios where a hobby has morphed into a job of sorts.
Fifteen years on from when I seriously started coaching in south-west London my experiences as a coach have moved on significantly. And in a number of ways I’d not have thought would have happened.
One thing that has become apparent as my coaching career developed was how much I thought I knew and then realised I didn’t.
I was a near 26-foot long jumper in my prime … so, not unnaturally I thought I knew quite a bit. However, now, I look back and can see how much I didn’t. I’m still learning now. It really is a case of the more you think you know the more you realise you don’t know.
I’ve always possessed an enquiring mind and I like to try to find answers and do research. However, coaching the long jump is both science and art and many of the “answers” don’t actually exist in textbooks or out there on the web. You have to find your own answers and develop your own solutions. And this must be packaged within a coaching philosophy (“Your way of doing and implementing”).
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I talk about the latter on my YouTube channel in the members’ area and look, for example, at training planning methods and how once you follow your preferred model you still need to put your philosophy onto it.
When taking the presentations I mentioned at the start, I stress that a coach needs to develop their way of doing – yes, this must be based on science but it must also be based on knowing what works from your own coaching experience.
And, you have to be quite dogmatic in sticking to its key tenants (as long of course as your philosophy works!). You can’t be a philosophy or training inclusion butterfly, flitting from one idea to another, always tinkering too much and making big changes, as you won’t follow a pathway that will take your jumpers to the destination that provides the strongest of opportunities to improve and adapt. Consistency is needed. Too many diversions along the way will do just that and divert them from adapting and developing optimally.
However, having said that you still need to be reflexive and welcome to a little tweaking in particular when you have relevant experience - specific experimentation.
An example, on a recent presentation for Ireland I talked about the long jump take-off and how there are different ways to set this up. Fifteen years back I would not have known very much about this topic at all. I explained how I was experimenting with step placements into the board and also pushing from the penultimate step into the take-off step. This was done with a couple of experienced jumpers who had the technical and physical long jump literacy to do this. I’d explained to them that I didn’t know what to expect i.e. it might work or might not. We discussed what happened and there were differences that affected the jump. One jumper seemed to benefit more than the other (more on this in another post/video).
So, unless you try different things, you’ll not know what else might unlock another 15-20cm. As a coach I am in a position to be able to understand what I am trying to do (most of the time!). All coaches hopefully will get to this level where, for example, armed with a huge long jump (or other event) backstory and history they can begin to really understand how to coach their event (I’m not so far down the line on my triple jump journey). It’ll take time, effort and some tinkering. Develop your philosophy. Develop your knowledge of what does work but don’t be afraid to listen, experiment and tinker (within your parameters). In doing so you will become the coach you dreamt of becoming and just maybe your athletes will thank-you!
I often get questions and queries submitted to me via my YouTube channel. There are always many when it comes to weight training’s benefits for sports performance. One in particular piqued my interest as it “suggested” that Arnold Schwarzenegger would have run 9.4 for the 100m!
Here’s a little more detail and the question and thoughts posed by Randuuum – a channel member.
“Running and jumping are nearly entirely neurological and infinitely involve more reflex and coordination than muscle. If muscle created downward force, then Arnold Schwarzenegger would be a 9.4 100m runner and 35-foot long jumper!”
So, you can begin to understand what the compromises might be with weight training for sports performance.
I had a chat back and forth in the comments section with Randuuum, and as said we agreed on quite a lot.
Weight training may not target the most powerful of fast twitch muscle fibres
Weight training due to the speed of lift in particular tends to target type 2a intermediate fast twitch fibres. These are not the most power producing of fast twitch muscle fibres – type 2bs are. Indeed, studies indicate power lifters have more of these than 2b fibre types.
Neural Adaptation – perhaps the dominant benefit
There is a secondary contribution of lifting heavy weights fast to sprint and jump performance and it indeed may well be the dominant one i.e. the more important for when considering the benefits of weight training for sprints and jumps and this is neural adaptation/stimulation.
Basically, lifting heavier weights may allow for the athlete to recruit greater numbers of fast twitch muscle fibres (paradoxically including type 2bs) and because of this create a neural system that can do so when sprinting or jumping. The larger the fast twitch motor units and fibres that are recruited by neural energy the more power potential that will be on offer to be sued by the athlete.
So, it could be argued that it’s neural transference as opposed to muscular adaptation that’s key to enhancing sprint and jump performance through the use of weights – however, as usual there’s more to it.
In the video that goes with this article I try to add clarity to this neural element by looking at modern cars and how to get the most from the engine there’s a lot of computer and electrical energy required … so, for engine read muscles and for electrical and computer energy read brain and neural system for the sprinter/jumper. So, being highly charged neurally i.e. in the zone seems to be crucial when it comes to maximising transference and adaptation from weights.
You’ve got to do the right weight training
You’ve got to select more than just concentric (muscular shortening) exercises. I utilise triphasic training – which also includes eccentric and isometric exercises (muscular lengthening and no-movement actions) and complex the weights exercises often with plyos and other jump exercises in the same workout. This is seen to further enhance fast twitch muscle fibre and motor unit recruitment.
Make sure your training programme focusses on transference…
This means that what you do in the weights room (which in itself must be specific and targeted to what will really improve jumping and sprinting) must be part of a training plan that integrates all aspects of training toward that goal of, for example, improving jump performance.
To do this I use undulating periodisation and don’t favour traditional linear periodisation means. As I say in the associated video: “You don’t want to get a mismatch between those training modalities.”
The value of eccentric and isometric “power” can be exemplified by using the long jump as a prime example of where this braking absorbent before energy return muscular power is needed in abundance. Much research indicates that for the long jump take-off that eccentric power is key.
You only need so much maximal strength
Much contemporary coaching thought has it that you only need a certain albeit high level of basic (concentric) strength. Once this level is attained then it’s argued that going beyond this will have limited if any further benefit to enhancement of performance. It’s at this stage in particular where optimising eccentric and isometric power could really pay dividends.
Eccentric muscular actions target fast twitch muscle fibre
Research indicates that eccentric actions can target greater numbers of fast twitch muscle fibres and this in itself may be another further benefit of eccentric training.
Adaptation and time spent training a particular way…
The body needs time to adapt to a training stimulus - although perhaps not as much as may have been previously suggested. Doing the same type of training constantly will at the least slow adaptation and at worse create the wrong type of adaptation. Adaptation that is actually contrary to what you may desire.
So, a long block of concentric emphasis weight training without a carefully constructed training programme nor the introduction of other muscular adaptation training and concerted speed work may result in poor/stunted training adaptation as far as a long jumper is concerned, for example.
Compromising muscular adaptation – rest and recovery
The other crucial factor when it comes to deriving positive and optimal transference from your training (whether weights or anything else) is rest and recovery. You need to ensure that you provide both mind and muscle with enough time to adapt physically and neurally to all training stimuli. There’s a growing debate in coaching and sports science circles about how the body adapts to training. The older GAS method of Hans Selye may if not discredited be seen to not apply to sports specific adaptation. More on that in another video/article.
This article accompany a video that will be on my YouTube channel shortly (13th March 2021)
I have been working with CoachTube to provide some coaching resources for long and triple and track coaches. My first long-form course is now available on the site (link below). It's a two video offering which goes into detail about How to plan training and How to construct a training phase (early season focus).
I explain why undulating periodisation and a specific highly focussed and detail specific approach works. Many coaches can waste time with unnecessary general volume. Why de-train your jumpers and spend months getting their sharpness back? Many of the world's top coaches employ a similar rationale as I do and what you will learn about on the course. For many it's a case of "Not what training you do but what training you don't do". The hardest part of constructing a training plan can often be about what you leave out. Hopefully, I'll simplify this process.
Specific is the way to go
Many years back I realised that specific is the way to go. Long and triple jump requires high-power outputs and copious amounts of speed. You won't get that from 300m repeats. Specific "volume" can be created by other means. For me it's all about drills and maximising their usage to develop all the required components of the long and triple jump.
You'll see first hand how I do this on in this two video 30min plus course. There are also associated notes to go with the videos which will help to further explain what you are seeing and hearing. And there are also links to other resources which will aid your learning on how to coach the long and triple jump.
Look out for more courses from me on Coach Tube.
HOW TO PLAN A TRAINING CYCLE – EARLY SEASON
Suitable for long and triple jumpers and short sprinters
This is the transcript from the second Coach-Athlete member videos on my YouTube channel. Every month I produce a video exclusively for members. Video 4 has just gone live. So far we have covered:
Video 1: How to plan training
Video 2: How to plan a training phase - early season
Video 3; How to use your coach's eye to adapt training and get the most from your athletes
Video 4: How to seamlessly transition to a competition phase.
To become a better coach and improve your coach knowledge check out what's on offer at this LINK
Many fellow jumps coaches from around the world have signed up and are benefitting from the more directed and specific content.
In the first video in this series for Coach-Athlete channel members' "Training Planning Getting Started” we considered just that. I identified three key areas which I believe long and triple jump coaches especially should focus on – these being:
1: Developing Specific Physical Capacity 2:
Developing Optimum Technical Ability
3: Developing the Ability to express Specific Speed and Power
I also considered in brief my planning method – undulating periodisation and my “jigsaw of drills” approach to gluing a plan together.
In this follow-on video we now consider how you can plan a training unit at the beginning of the training year. The process will work for all levels of athletes – indeed I train younger athletes more or less the same as older ones in terms of the training framework that I use. I’ll say more about specific differences when it comes to training younger athletes (circa u14) in another video. And of course, I'll adapt some of the drills and the volume to younger athletes.
Talking you through my Training Plan
As you’ll have seen and heard in the video, I use my own plan as an example of how to plan long and triple jump training against the undulating periodisation model. By doing this I hope that you will be able to see how you can use this model or consider it. You may of course have your preferred planning model. Note undulating periodisation or block periodisation models can work for most power/technical events.
I begin by showing you what I include in the training plan i.e. the types of drills units that I incorporate. These range from basic drills, such as marching and lunges, to jump drills (take-off and penultimate step), to technique work and sprints, as well as strength and conditioning (weights and plyos).
Some practical considerations
You, like I, will need to construct your training plan and phases around: 1: What facilities are available 2: The training maturity of the athletes you coach 3: The time in the training year 4: How much time the athlete (and you as their coach) have
How I Plan: Planning a Session at the Beginning of the Training Year
I take the drills I use (and these are denoted on the left of my plan as shown in the video) and place them into units on the week to week part of the plan or more practically for the days when the athletes train. There are three main group sessions when I am normally present and one designed weights/conditioning day, which the athletes do on their own.
There may be an additional session but generally the athletes train four days a week in terms of major sessions.
Within a session there may be 4-6 drill units. And as I note the inflection of these as well as the intensity and volume is varied across the training year. This as I explain reflects the notion of always training specifically and within a very narrow bandwidth of being able to perform at a high level i.e. close to sprint PB’s. The idea is to build, for example, speed on speed on speed and not – as the case could be with linear periodisation, take steps back away from specific condition and therefore lose potential specific condition before regaining it. Ideally you want a constant specific adaptation – one that targets fast twitch muscle fibre and the motor units which switch them on and the technical progression and solidification against relevant conditioning and speed inputs.
You must consider the objectives of the training phase and the sessions when making your programme content inclusions.
I take you through specific sessions and you’ll see some of the drills that were performed. I also talk about how you can, using this method, develop basic background fitness for long and triple, for example, but in a specific way.
Planning a Week or short Training Phase at the Beginning of the Training Year
The graphic How to Plan a Training Phase hopefully makes the notion of undulating periodisation and how it works easier to grasp. The redline represents the undulation of desired peak performance and you can see how it ebbs and flows around an optimum performance baseline across the training year with the objective being that it increases peak performance more or less continuously.
We go through the other sessions that my group did on its first week back of training. I show you what I intend to do by placing specific drills into a specific day.
Rest Recovery and Regeneration
I also show you how you can include weights and plyos into a session with sprint drills also included (why not?), as we do on a typical Monday session. I explain that this could enable the athlete to have a rest day the following day and therefore maximise/optimise adaptation. Remember that it’s in the times when an athlete is not training when their body and neural system will adapt.
Also consider that work, study and life stress also affect an athlete’s training, training status and adaptation.
More on Combining Weights and Plyos into a Workout (with or without other units)
Many of the world’s top jumps’ coaches such as Nelio Moura (coach to both long jump gold medallists at the 2008 Olympics) complex their weights and plyometric training. This is seen to be advantageous in terms of potentiation and fast twitch motor unit recruitment and neural activation. More on this in a future video. As noted this is what I usually do.
A look at the Third Training Session in the First Week
This session is at a slightly lower level of intensity than the ones from the Saturday and Monday. Being mid-week working and studying athletes can be more fatigued in general. However, again I will consider some of the options for the session once it is taking place. Not all your athletes will have recovered the same and some will be having better or worse days. You as coach have to try and make judgement calls on the day as to how to apply the basics of your session to your athletes in real-time.
Overview of Session Content for a Typical Early Season Week
Unit 1: Jog to hills area (5-6min)
Unit 2: Basic drills balance
Unit 3: Basic drills fitness
Unit 4: Foot-strike and take-off drills
Unit 5: Various jumps and sprint drills options up bridge steps
Unit 6: 6x60m hill easy efforts – walk back recovery. Ran at whatever pace athlete wants to
Unit 1: Bar drills and runs 10-13 efforts, over 20m-30m
Unit 2: Weights and plyos contrast session – mixture of different muscular actions. 3 main exercises in weights room, e.g. eccentric split squats, step back lunge, isometric leg press
Unit 1: Barefoot drills and runs
Unit 2: Partial hops and bounds 8-10 combinations over 30m
Unit 3: Eccentric emphasis block jumps travelling forward 3x30m
Unit 4: Med ball work triple extension focus 2x8 reps each exercises (3 exercises)
Unit 5:8x60m easy runs with walk back recovery
Thursday Unit 1:
Resistance session concentric emphasis (3 main exercises e.g. squats, cleans) I hope these notes add some clarity to the video and if you have any queries do get back to me.
We all wanted 2020 to end and for 2021 to be a truly "new" New Year. The global pandemic has been a disaster for us all and it has tested our sanity, perseverance, purpose and faith. Track is just a very small part of what goes on in the world and yet, for those of us who are coaches, athletes, fans, judges and so on it's a lot more. Not being able to coach and train properly has been a perpetual test since March of last year for me in the UK, and it's going to continue well into 2021.
We're back to lock-down as of yesterday like the one as we had in March and this means only localised exercise with no sports facilities open at all (except for those on elite programmes - more of which later).
This is a necessity for our health now as the spread of COVID is highly dangerous. however, It means that I, like many coaches, will have to dig deep and summon up the energy to try to motivate our athletes to keep in shape and to train as best as they can.
Last time around I posted and created lockdown workouts which can be done at home or in parks and on the roads (if it safe to do so). You can check these out on the channel at:
I may well create a couple more this time around again too.
I've been able to coach relatively normally since the autumn - albeit with some changes in venues and the need to train outdoors, but we were getting there. Now, for many of the group (like many others everywhere else) that end destination has been changed. Well it's actually no longer in existence - and it's unlikely that normal training will resume for months. Plus, the excitement and drive of competing indoors has vanished. You can always sense that it's in the air at the time of the year. It's going to be a tough time.
As I said last time around athletes have to try to enjoy what training they can do and to not think too much about competing ... it's a case of ticking over and training for health and mental well-being as well as performance.
I'll be trying to keep my guys on that path.
However, I do have three athletes who are deemed to be elite and they can still train if facilities are willing to remain open. So, I'll be coaching "normally" a couple of times a week. I'll also do some 121 sessions with them where allowed in outdoor spaces too. You'll see a pic of Jahisha below working out in a local park.
There's a lot you can still do and hopefully we will all do what we can within the realms of what our country's regulations are.
Perhaps now, instead of seeing training sessions as a means to a PB, see them now as part of your well-being, as a way to feel better about what's going on, as something that you have relative control over, and as something to do that will make you feel better after having trained.
Find that different motivation. And make sure to look out for your fellow athletes and coaches and all in the track family and beyond. Stay-safe everyone.
It's taken a while but I finally pulled together the third issue of The Jumper. It's packed full of articles that should appeal to jumpers coaches and fans of these events alike. We've articles from top coaches such as Nick Newman, who's based in the US at USC as jumps and coach - Nick talks about his approach to jumps coaching. You can get his book from Amazon.
Then we have an article from Nelio Moura who has coached two Olympic long jump champions ... yes two. Nelio shares with us his tips on how to coach the long jump take-off. Top sprint coach Jonas Dodoo shares with us his tactics and technical tips for developing speed. Speed is something that all long jumpers and triple jumpers crave so this is a must read. Jonas's' article is part of a larger speed special, where we delve into numerous aspects of speed development, such as acceleration.
The issue includes it's usual mix and there's our social media watch, where we single out great pages and channels and podcasts for you to scroll to.
This issue was supported by Neuff - athletic equipment suppliers, so do check them out. There are some great offers from them (and other brands in the magazine). From Neuff you can get a Power Pack which includes sled, stretch bands and med balls and was part selected by your truly. It's a great combination of items that are actually really useful and applicable to sprinters and jumpers.
To get hold of the issue for FREE, all you need to do is click on the image. It will download from the web and from there - should you want - you can download it as a PDF. Links to the various media will work in both formats
Weight training seems to be one of the most popular topics on the channel. Whenever I produce a video on the subject I get lots of comments. Most - which is good - agree more or less with what I'm saying. You'll see what I mean if you look at one of the latest weight training videos - The Pros and Cons of Weight Training and its associated comments - SEE VIDEO BELOW.
However, a different type of question on weight training was asked on another video's comments section:
Q: Can weight training stunt your growth?
It's an unusual question so I thought I would provide my answer here, so more may be able to see.
A: Well, not if you train appropriately and at a mature enough age. Research indicates that weight training does not slow growth ... we also need to consider that plyometrics, sprinting and jumping are more intense exercise forms of exercise (more so than weights in terms of overload on the body), so if a young athlete can sprint they will be able to handle weight training (obviously sensibly set). Any exercise at any age will also have a hormonal effect. This can be positive and actually stimulate growth (in muscles, ligaments, tendons and bones, for example).
I generally introduce light weights at around 14-15 years of age for a jumper. They would be used for developing injury prevention rather that directly enhancing performance. And as I say in my videos I would be making sure that speed, plyometric ability and technical ability were the prime areas of focus. Weights can specifically improve performance, however, it takes time and a specific type of weight training to achieve this. If you were to emphasise the wrong type of weight training at too early an age this could be detrimental to your jumping. There are far better ways to improve performance.
Adding a little more.
Having said that some athletes may need to develop their specific weights strength earlier than others. It will be up to the coach to identify what they think a particular athlete needs to do in order to improve their performance. I'll say more about this in a future video on the channel and will give some specific examples using some of my athletes.