Introduction
Seventeen million.
That’s the variety of youngsters – roughly – which have stopped enjoying baseball between when my son began enjoying and immediately. Because of the efforts of the Aspen Institute’s Venture Play initiative, we all know that yearly youth baseball loses someplace between 1.6 and 1.8 million gamers per 12 months within the transition from the 6-12 12 months previous cohort to the 13-17 cohort. So from 2014, when my son suited up for his first official T-ball sport, to immediately going into his sophomore HS season, if we simply break up the distinction between these tough numbers that provides as much as round seventeen million gamers which have stopped enjoying baseball earlier than they bought to the 90’ subject.
I’m very grateful that my son didn’t make that quantity seventeen million and one.
To be clear, I don’t want him to play baseball simply because I’m the Director of Youth Baseball at Driveline and he’s my son. The longer that he has stayed within the sport, the extra I’ve made constantly positive he understands that is solely his journey. He nonetheless needs to play the sport and enhance his capability on his personal accord, which is the factor that I really care about most – whether or not it pertains to baseball, world historical past, structure or anything that sparks his curiosity as he will get nearer to maturity. I broadly need him to be intrinsically motivated to comply with his passions and execute them to the perfect of his capability, and proper now his ardour is aimed toward baseball.
All of that mentioned, I can’t ignore the chance that his desirous to play the sport, and his aggressive capability inside the sport, has been influenced by a few of the decisions that I made as a mum or dad and what his youth baseball expertise was to be optimized for by these decisions. At this level I can clearly say that the moments that I optimized for well being and improvement had been those after I bought it proper. And the momentary moments after I strayed from that optimization is after I bought it mistaken.
So, what does it really imply to optimize for well being and improvement? To grasp get – and keep – on that individual path now we have to first outline what it really means to optimize for well being & improvement, then outline a few of the decisions that should be answered alongside the way in which to maintain us there. Partially 1 of this 2 half collection we’ll focus particularly on what it means to optimize for well being.
Optimizing for Well being & The Youth Throwing Harm Panorama
Once we are speaking about optimizing for well being, we’re speaking about conserving gamers in a state the place they’re able to compete, in coaching and in video games. To do that it’s crucial that we perceive the idea of workload.
(need a full understanding of those workload ideas and coaching applications for apply them? Try our guide Abilities That Scale: The Full Youth Baseball Coaching Guide)
Once we are discussing the idea of workload, what we are attempting to do is put some definition round what the precise physiological results of throwing are. It’s necessary that now we have this understanding of the consequences of throwing, as a result of all throwing has value:
- Catch play
- Plyocare drills
- Pitching
- “Contact & Really feel” bullpens
- Lengthy toss
- Place play throwing
- Towel drills
- Low intent throwing
- Excessive intent throwing
- Fastballs
- Breaking balls
At totally different cut-off dates a few of the above throwing modalities had been thought-about to have little to no physiological impact on the thrower, and had been prescribed in coaching due to this perception. Because of newer analysis we perceive that that is definitively not the case, as a result of if the towel drill has prices then it’s logical to extrapolate that each one throwing has prices we have to account for.
Now, it’s nonetheless true that these prices may be variable. For instance, an off-the-cuff throw early in catch play would have decrease value than a 3-2 fastball thrown within the final inning of a championship sport, however crucial idea we have to perceive is that each one of those throws, of all types of intensities, with all types of ball weights and totally different quantities of quantity are going to incur some form of bodily impact on the thrower.
If we’re hooked up to the necessity to hold gamers in youth baseball wholesome then it’s essential that we monitor the prices of all throwing, particularly due to what we perceive about the most typical mechanisms of harm in youth baseball: gamers throwing whereas fatigued.
Analysis performed by the American Sports activities Medication Institute and the Andrews Analysis and Training Institute paints a really stark image: if a younger baseball participant throws with fatigue there’s a 36 to 1 elevated probability that they’ll injure their throwing shoulder and/or elbow. This maps to different analysis on the subject of throwing whereas fatigued and harm threat. Whereas all the image will not be completely clear, what we do perceive is a really primary relationship between throwing with fatigue, kinematic / kinetic adjustments, and finally elevated threat of harm:


The “value” of throwing is basically going to be outlined by variations to the inputs – the depth of throws together with the quantity of those self same throws.Throws at larger depth are going to typically have the next value than these at decrease intensities, however the quantity of each excessive and low depth throws goes to outline the precise workload.
When a participant throws a “low intent” mound session of 50-60 pitches mid-week main right into a event weekend they nonetheless must accommodate for the workload that session created, low depth or not. Equally, a participant who throws a mid-week 20 pitch bullpen at competitors ranges of intent can also be going to need to accommodate for the workload that session created. Each gamers are in danger for having to take care of pre-event fatigue if there may be an insufficient period of time to relaxation and get better from these throwing classes earlier than they start enjoying video games on the weekend. And once more, we all know that throwing with fatigue is essentially the most essential factor we wish to keep away from as a way to hold gamers optimized for well being.
We are able to additionally take some sign from this relationship between fatigue, kinetic & kinematic adjustments in throwing mechanics and finally elevated harm threat to additional perceive the panorama of youth throwing accidents at current. MLB just lately launched a paper that summarizes their findings on this difficulty, and takes perception and opinion from a wide range of sources each on the skilled and novice degree for the sources of those points. Whereas opinions might range on all the components concerned, the one factor that everybody agrees on is the best difficulty is overuse. On this framework of understanding workload and the physiological impact of throwing on the physique, overuse is the first variable we have to management for as a result of overuse inhibits gamers capability to keep away from throwing in a fatigued state.
This graph exhibiting the proportion of Tommy John surgical procedures on youth gamers carried out by the Andrews Sports activities Medication facility was offered by MLB’s John D’Angelo on the MIT Sloan Sports activities Analytics Convention in 2017:


And this up to date chart was revealed as a part of MLB’s Pitching Harm Report that was launched in late 2024:


these two charts we will see that since 2017 what was already an alarming development has largely solely gotten worse. Whereas some uninformed individuals would counsel that Driveline and different purveyors of specialised youth baseball coaching are to be blamed for the present harm points in youth baseball, it’s value noting that the proportion of UCL surgical procedures they attributed to youth was already round 30% in 2009, the 12 months that Driveline was based. What’s the one factor that has stayed fixed all through this whole time period? A rise within the complete quantity of video games performed, which is the conduit for overuse.
Past this minor clarification on the “supply” of the harm epidemic in youth baseball, the broad development right here needs to be alarming. Anytime that youth and adolescent sufferers signify greater than 50% of the surgical inhabitants at a spot just like the Andrews facility all of us needs to be justifiably involved about why that is occurring. The sign that we wish to extract from this trendline nonetheless ought to largely revolve round not the speed of youth UCL surgical procedures themselves, however the habits and underlying traits that results in surgical procedure being a mandatory step for some gamers. Once more, we don’t but have a 1:1 causal relationship between any particular quantity of throws – or a selected workload – that results in a participant needing UCL restore. However what we do perceive is the overall path of habits that results in that surgical procedure: throwing with fatigue can result in harm, and persevering with to throw with a minor harm can result in a serious one which will require surgical intervention.
Making use of Workload Ideas For Wholesome Recreation Preparation
In terms of the time durations that we wish to monitor throwing workload, the first intervals we’ll monitor for the consequences of throwing are:
- Acute Workload: Throwing quantity and depth from a single day
- Power Workload: Throwing quantity and depth over an extended time period
- Rolling common over the previous 28 days
Because of instruments like Driveline PULSE, we will definitively measure the impact of those throws – their quantity and their depth. You may learn extra in regards to the operate of Driveline PULSE right here, and in case you are dedicated to getting essentially the most actionable info on hold your gamers protected the PULSE sensor is essentially the most useful device you should use to watch the consequences of their throwing. For the sake of this text nonetheless we’ll simply concentrate on the variables at hand we will perceive with no PULSE sensor and the straightforward decisions we will make to average them to maintain youngsters wholesome.
Whether or not a participant is wholesome and able to compete in a weekend event is basically going to be decided by their throwing within the week and weeks that lead as much as the occasion. A really cheap two week throwing program designed to get gamers able to compete in a wholesome state may look one thing like this:


It’s value noting that it is a very abbreviated schedule for throwing, and that what’s actually going to have an effect on a participant’s throwing readiness going right into a weekend value of competitors will not be solely these two weeks, however all the weeks earlier. That mentioned, there may be nonetheless some sign that may be extracted about average workload main into competitors in a approach that units gamers up for achievement by avoiding pre-event fatigue.
In Week 1 we’re executing what we might name a really primary periodization method to increase depth over the course of a single week. The week’s first coaching day – Monday – is what we might name a Restoration day within the Abilities That Scale Coaching Guide. What does that imply outdoors of a Driveline throwing program? Merely that we’re going to scale back the participant’s acute workload on this particular day of coaching by decreasing their throwing quantity and throwing depth. Any such exercise is strictly what a participant coming off of a weekend’s value of competitors wants. We would like them to throw as a part of an energetic restoration exercise protocol, however we wish the depth and quantity of these throws to be low such that the participant has an opportunity to get better from the Acute workload that was presumably created through the week or weekend earlier.
The week’s second coaching day – Wednesday – acts as a bridge towards the third day of coaching on Friday. After the low quantity low and depth throwing on Monday we wish to progressively improve workload on Wednesday such that the participant is primed and prepared for the next degree of workload on the third day of coaching on Friday. Not in a approach that between Monday and Wednesday we might see a spike of their workload, however in a progressive and nearly linear vogue if we had been to have a look at a day-to-day development to the workload we’ve created with every day’s value of coaching.
Having progressively constructed up workload from our first two day’s value of coaching, on Friday we’re prepared for the participant to get again to the next workload. That is an extremely nuanced level, however an necessary one. If gamers are going to be throwing with excessive intent in competitors it stands to cause that the primary time that they’re going to expertise the stress and the workload that competitors will deliver shouldn’t be within the competitors itself. The sport calls for intent, and we wish gamers ready for the physiological results of that demand.
So, on Friday we wish to create a coaching atmosphere for gamers that will get them as much as the extent of stress they’re going to expertise in competitors forward of the sport itself. This manner we will put together them for the workload that’s to return, and we can also accomplish that in a approach that we’re monitoring their outputs – velocity – and their mechanics alongside the way in which for any indicators of fatigue. If we discover any indicators of fatigue alongside the way in which we will minimize the exercise brief, and by doing so we additionally acquire the information of the place the participant began to indicate indicators of fatigue when it comes to their throwing quantity, which is effective info we wish to have on our gamers going into competitors.
Transferring into the second week, we’re typically working the identical playbook. Monday is a low quantity and low depth coaching day to get better from the workload that was created by the excessive depth exercise the earlier Friday. Wednesday is a average degree of quantity and throwing depth to begin constructing again up, however on the Friday main into competitors we’re going to introduce one other low quantity and low depth workload as a substitute of doing something resembling excessive intent previous to the onset of video games. Once more, we don’t wish to introduce fatigue earlier than the occasion even begins. What we wish as a substitute is a participant going into competitors with a workload and readiness degree that’s designed to tolerate and settle for each the quantity and depth of throwing a weekend’s value of video games goes to demand.
Moderating Throwing Workload In Competitors
We are able to apply these identical ideas round workload moderation when gamers are in competitors. In a standard event format, gamers are sometimes requested to compete in a major quantity of video games in a compressed period of time. How can we do that safely? By avoiding as greatest we will the doubtless injurious configuration – gamers throwing and competing whereas fatigued.
If throwing in a fatigued state is essentially the most essential factor we wish gamers to keep away from, then a few of the normal behaviors relating to participant pitching assignments throughout a event weekend are instantly known as into query. Issues like pitching twice in the identical day, or closing out a Saturday sport and beginning on the mound on a Sunday, throw up speedy crimson flags due to how they have an effect on a participant’s workload. The insufficient quantity of relaxation and restoration from the primary to the second occasion of pitching goes to extend fatigue. As fatigue goes up, so does harm threat. So we have to keep away from some of these circumstances.
We should always categorical comparable quantities of warning after we combine pitching with place play – if these positions on the sphere are ones that mix excessive volumes of throwing with excessive depth throwing. For instance, having a participant pitch and accrue a major quantity of throwing in workload in sport one, then having that very same participant begin at catcher in a 2nd sport performed on the identical day, is a worrisome mixture due to the excessive quantity of throwing catchers need to carry out, together with occasional excessive intent throws on runners attempting to advance. The identical may very well be mentioned about gamers pitching in a single sport after which being the beginning shortstop within the subsequent, as your shortstop is mostly doing nothing however making larger intent throws, as each throw they make is on a stopwatch with a runner attempting to advance.
There are all types of edge instances right here relating to this interaction between pitching and place play – so many who at current arising with a tough and quick rule to outline what’s and isn’t protected goes to be difficult. Once more, it should be mentioned that at current if you would like essentially the most and greatest info on what a participant’s throwing workloads are and the way they’re affected by all throws – on the mound, within the subject, within the heat up, and so on – then a device like Driveline PULSE is necessary. However even with out this device, if we merely perceive that:
- All throwing has value
- Fatigued gamers usually tend to be injured than non-fatigued gamers
then we put ourselves able to make decisions which are extra more likely to hold gamers wholesome than not. Typically which will imply merely making the least worst alternative out of the out there choices. I’ll offer you a selected instance of what this implies.
Sensible Instance – Making The Least Worst Decisions
My son’s 11 12 months previous Little League season was largely worn out resulting from COVID. Luckily we had began the Driveline Academy groups that 12 months, so he was nonetheless in a position to prepare and develop whereas the bigger leagues had been shut down. When issues bought again to regular my son was decided to take advantage of out of his 12 12 months previous season, and the Little League All Star Match that adopted.
We dropped the primary sport, which meant that we needed to win our 2nd sport or we’d be within the “2 and a barbeque” configuration of getting our All Star expertise finish prematurely. My son began that 2nd sport and went 4 1/third 0H 3R 2ER 4BB and 9K’s on 89 pitches. With him on the pitch restrict and our workforce needing to get 5 extra outs to win the sport – which might permit us to earn a third sport for the entire workforce – I made the choice to place him at Shortstop for the rest. I knew that by doing so I used to be including in some quantity of calculated threat, in that there have been going to be some quantity of excessive intent throws he must make from that place that may add on to the workload that he had already accrued pitching. However I additionally knew I may management the remaining he would get within the subsequent sport, ought to there be one.
First, we had a day of relaxation between this sport and after we would play subsequent, ought to we win this present sport. And in that subsequent sport he wouldn’t be pitching by rule, because of Little League’s necessary MLB Pitch Good compliance. Additionally I may place him within the subject someplace the place I might anticipate a decrease quantity or decrease frequency of intense throwing if I noticed (his velocity stayed or he reported any quantity of fatigue or soreness previous to this third All Star sport we had been attempting to make it to. Luckily, that was not the case. His velocity through the sport he pitched didn’t fluctuate or dip, and he reported no soreness going into our third sport after the remaining day.
Coming again to the sport we wanted to win, after my son got here out of the sport one in all our relievers gave up a few runs to tie it within the prime of the fifth. We then scratched a run throughout with 2 outs within the backside of the fifth and closed it out within the prime of the sixth, securing the win and our capability to play a third sport. In that third sport, with all of our extra aggressive pitchers exhausted by rule and unable to pitch, we simply bought beat plain and easy. And regardless of that not being the end result we needed, it’s okay.
I had 12 gamers on that All Star workforce. At present, solely 5 of these 12 gamers are nonetheless enjoying baseball so far as I’m conscious together with my son, and actually the quantity being that top is one thing I’m fairly completely satisfied about. For the time that I had that group of children I did the perfect job that I may to average their workloads, hold them wholesome and never let my conduct as their coach result in an harm that may power them out of the sport sooner or later now or sooner or later.
Within the subsequent installment of this collection we’ll speak about optimize for improvement and setting gamers up for efficiently making the transition from the small subject to the large subject. Keep tuned!