Lehman’s Baseball Update

After years of neglect I have finally taken the time to organize this site and make it more manageable for anyone who wants to read these nerdy exercise science/baseball articles that I’ve accumulated over the last 4 years. At the top of the page you’ll find a menu that has organized most of my posts into nice and neat categories.  These topics represent what I’ve spend the most time studying and might want one day research so more than anything I needed to restructure the site for myself to try to keep most of my thoughts organized in one place.

Mechanics & Velocity: This page is where I’ve organized all of my articles about throwing hard.  Most of the articles are related to research papers that I try to translate into “Lehman’s Terms” so that coaches and players can understand and benefit from this great information.

Baseball Athletic Testing: I’ve added another page at the top dedicated to the testing of baseball players.  I’ve had a ton of interest on this subject ranging from MLB teams and Division I NCAA school’s to high school. It’s by far my most popular subject and I’m evening thinking of trying to clean it up (by this I mean adding in some more references) and try to get it published and sent out to more coaches since I think that this information is important and needs to get out there. I’d like to thank those that have sent back some of their testing numbers

PAP (Post Activation Potentiation): While I’ve only written one article about this subject I have studied it a lot.  When I originally started my master’s program I had the idea of doing some research about how this exercise physiology phenomenon could help baseball players improve their performance.  I even went so far as to write a literature review which I’ve posted up on this page so if you are really keen on the geekier side of exercise science you might want to check it out.

Rotator Cuff:The largest series of posts on this site explored the rotator cuff.  It goes into a lot of detail about this group of muscles that every baseball player has heard of but very few know and understand how it works.

I’ve got another topic in the works but it is a topic that I have only recently started to study so the articles are coming but I am very excited to jump into this rabbit whole because I think it has the most potential to help young players get better and benefit from the type of information that you can find on this site.

I hope that you enjoy the new user friendly layout of the site and I am looking forward to contributing more material in the near future.

Sincerely,

Graeme Lehman, MSc, CSCS,

 

Wanna Get Drafted Out of High School? Here are the physical stats of players that did. How do you compare??

The purpose of this article is to give young baseball players an idea of just how athletic they need to be in order to play professional baseball.  While you might of heard about how big and strong major league players are you don’t often hear how strong they were when they got drafted as teenagers.  Use these numbers as a goal to work towards in the weight room and on the field.

scouts

How Fast and Strong do you need to be to grab their attention?

Below you will see how athletic profile of players of all between the ages of 16 and 19 in either Cincinnati Reds, Detroit Tigers, New York Mets or Texas Rangers between 2005-2010.  Its even broken down into position players and pitchers.  See below for the actual reference.

So perform these same tests and see how your performance ranks compared to these athletes that have reached the same goal you are trying to achieve.

Athletic Profile of Professional Position Players – Ages (16-19)

jurikson

The very young and very athletic Jurickson Profar

Atheltic   Profile of Professional Position Players Ages 16-19
Weight (lbs) Weight (kg) Lean Body Mass (kg) %Body Fat
Body Weight & Fat 196.7 89.4 79.3 10.8
Jump (inches) Jump (cm) Peak Power (watts) Mean Avg (Watts)
Vertical Jump 27.2 69.0 10410.0 2128.0
Time (sec) Speed (m/s) Kinetic Energy (J)
Pro-Agility 4.45 4.11 754.3
Time (sec) Speed (m/s) Kinetic Energy (J)
10 Yard Dash 1.65 5.54 13171.6
Strength (kg) Time
Grip Strength 50.6 300 Yard Shuttle 51.7

Athletic Profile of Professional Pitchers Ages 16-19

homer

The Powerful Homer Bailey – Drafted out of High School

Atheltic   Profile of Professional Pitchers Ages 16-19
Weight (lbs) Weight (kg) Lean Body Mass (kg) %Body Fat
Body Weight & Fat 201.3 91.5 80.6 11.7
Jump (inches) Jump (cm) Peak Power (watts) Mean Avg (Watts)
Vertical Jump 26.3 66.8 10342.0 2129.0
Time (sec) Speed (m/s) Kinetic Energy (J)
Pro-Agility 4.68 3.91 698.0
Strength (kg) Time
Grip Strength 50.5 300 Yard Shuttle 51.6

Below you will find out how to complete all of these tests to get your own numbers.  Again us these numbers as a starting point and the numbers you see in these charts can serve as your goal.

Print these charts out and put them up in your gym to remind yourself of how hard you need to train in order to improve your physical tools in order to improve your chances of getting drafted as a teenager.

The Tests

Body Weight and Body Fat: stepping on a scale to see how heavy you are is easy enough but it would be nice to know how much of that weight is fat and how much of it is lean muscle mass.   Having a lot of body weight is a good thing because it allows you to generate more energy which you can transfer into the ball when you throw or hit.  But if that body weight is high because of fat you can’t generate the kind of speed needed to succeed in the game of baseball.

Try to find someone who is skilled using body fat calipers.  You can get them to measure your thigh, stomach and chest for body fat then plug into in the Jackson-Pollack 3 body fat formula which is the formula used in the study where I got these numbers.

10 Yard Dash: Due to the short amount of time and distance is does make it a bite harder to accurately time the 10 yard dash.  If you have access to laser gate timers then go for it.  If not use a stop watch.  If coaches can accurately measure a catcher’s pop time they can get a 10 yard dash time.  If your wondering why a 10 yard dash and not a 60 yard dash then click here to read about why acceleration is so important. http://lehmansbaseball.wordpress.com/2012/06/17/accelerate-your-game-how-to-improve-your-game-speed/

By looking at the combination of your 10 yard dash time and your body weight we can easily figure out how much energy you are creating.  Remember how I mentioned above how important body weight was in creating momentum?  If you are big and can run well then you create a lot of energy that can be used with a either a bat or ball in your hand.  Pitchers for whatever reason didn’t perform the 10 yard dash.

To calculate your speed and the amount of energy you create follow the these calculations

  1. To get Speed in terms of meters per second take the number 9.41 and divide by your 10 yard dash time.  (10 yards = 9.41 meters)
  2. Divide your body weight by 2.
  3. Take your speed number (step 1) and square it.
  4. Multiply the numbers you got from step 2 and 3 together to get your final kinetic energy factor number in Joules.

To learn more about importance of kinetic energy check out this article: http://lehmansbaseball.wordpress.com/2013/08/06/the-big-league-athlete-combine-how-to-better-test-for-baseball-playing-ability/

Pro-Agility: Again this test places an emphasis on short burst of acceleration, 3 of them to be exact.  The athlete must also show how well they can decelerate which takes a lot of strength and coordination.  If we apply the same the equation that we did for the ten yard dash then we can get reading on how much power is being produced with the momentum that each athete creates based on their speed and mass.  The only difference is that take the number 18.82 and have to divided the number of seconds it took you to complete the test.

pro agility

Vertical Jump: Once you get your vertical jump score in centimeters we can plug that into a formula along with your body weight in kilograms to calculate the amount of power you produce.  You will get two different scores both of which are measured in Watts which is a unit of power.  The “Peak Power” score tells you how much power you created during the take off while the “Average Mean” score is how much power you averaged for the entire jump.  They are different but both important because they have been shown to predict power numbers for hitters such as home runs and slugging percentage.

To learn more about the importance of jumping power in baseball read this article: http://lehmansbaseball.wordpress.com/2012/06/05/why-jumping-is-important-for-baseball-players/

Peak Power Equation = (61.9*cm)+(36*kg)+1822

Mean Average Power = (21.2*cm)+(23*kg)-1393

300 yard shuttle: Pretty easy to set up but not much fun to do.  Set up two cones 25 yards apart.  Run to one cone and then back to the first cone to complete one round of 50 yards.  Repeat that five more times for a total of 6 in order to run 300 yards.  Rest for 5 minutes then run it again.  Take the average of the two as your score.

Hand Grip:  For this test you need to get your hands on a hand grip dynamometer.  Pun intended.  Ideally it is made from the good people at Jamar because that is the brand they used in this study.

The Study: 

Mangine GT, Hoffman JR, Frangala MS, Vazquez J, Krause MC, GillettJ and Pichardo N.  Effects of age on anthropometric and physical performance measures in professional baseball players.  Strength Cond Res. 2013 Feb; 27(2); 375-81

Sincerely,

Graeme Lehman, MSc, CSCS

Part 2 – Arm Slot and Trunk Tilt

Quick recap of Part 1 since I wrote it 3+ months ago.  This article talked about a study which reported that pitchers who threw with excessive contralateral tilt could produce more velocity than those who didn’t tilt as much.  This extra velocity came with a price which was more joint forces at the elbow and shoulder which could lead to an injury.  The amount that each pitcher tilt’s is going to dictate which arm slot they use since the arm should always be at 90100 degree angle from the trunk in order to maximize force and minimize injuries.

Part 2 will look at tilit, arm slots and postures but before we get started on part 2 I wanted to give you my top 4 excuses that it took me so longer to write this piece:

  1. Took a two week vacation with my wife to Peru
  2. The off-season is my busy time of year working with baseball players
  3. I moved to Kelowna from Vancouver (about 400km/250 miles apart) – started a new job as a strength coach and I am starting to work with some local baseball teams.  Both of which I am very excited about.
  4. The more I thought about this subject I started to think of more topics to discuss which is why this will turn into a three part series.

Picking Your Arm Slot

Based on the information from Part 1 it looks like throwing with more of an over the top arm slot which requires excessive contralateral tilt allows you to throw harder.  Even with the extra stress on the elbow and shoulder I think that most pitchers would be willing to take that risk in order to throw harder.

However each pitcher must select the arm slot that allows for the best chance at success since there is more to pitching than throwing velocity. Velocity is VERY VERY VERY important but it is still a only one piece of the pitching puzzle.

Some pitchers select their arm slot because it allows for more accuracy and/or movement even if it doesn’t allow for optimal velocity.  This a choice each pitcher and pitching coach has to make.  A lot of MLB organizations will take some of their pitchers and get them to throw with different arm slots that aren’t as common in order to increase their effectiveness and become a specialist out of the bullpen.  These are pitchers that have enough ability to play professional baseball but are maybe lacking a bit of velocity or skill to make it as a “normal” thrower.

images

Lefty Specialist with No Trunk Tilt

Considerations when Measuring Tilt

The authors of the study determined the amount of tilt each pitcher had based on the position of their head in relation to the landing foot at the point of maximum external rotation.  I loved that the researchers provided us with an easy to use tool that just about anybody can use.  Simple and non-complicated tools are great but I wanted to bring up a couple of points that we should consider before we start to classify our pitcher and their tilt.

Landing Foot Placement

If we measure tilt based on the head position in relation to the landing foot then we should look at where the foot is landing. If you land with either an “open” or “closed” position this is going to change the amount of tilt that you display since the foot is the reference point from which measure.  A righty that lands in an “open” position towards first base and still display’s tilt is going to be different than a pitch you lands with their foot in a straight towards their target.  Landing position is a topic for another article all together but just be sure to make note of it as well as tilt.

images (1)

Where’s this Tilt coming from? 

Knowing how much tilt a pitcher has is great but the term “trunk tilt” is a little too general.  The term “trunk” here refers to our spine which runs all the way from the base of our skull to our hips.  Because this structure is so long we need to figure out where exactly the tilt is coming from.  

spine

The parts of the spine that we really need to consider are the cervical, thoracic and lumbar spine.  The other regions of the spine (sacral and coccygeal) don’t provide any movement so we know that we aren’t getting tilt from here and if you are you’ve got bigger problems.

The reason that I am getting into more detail is that some portions of our spine are made to move and tilt more than others.  This steams from a concept I’ve come to learn and appreciate from my job as a strength and conditioning coach.  The concept is called the Join-by-Joint theory and it stresses how each joint in the body is designed primarily for either mobility or stability.  In reality each joint has some mobility and some stability but the amount of each is definitely not 50/50,  if a joint has a lot of mobility it will lack stability and vice versa. Look at the shoulder joint for example.  It is probably the most mobile joint in the body but because of that it is very unstable which is why we spend so much time working on shoulder stability exercises. 

joint by joint

Lumbar Region

If you look at the picture above you’ll see that the lumbar spine in red is labelled as a “stability” joint which means that we shouldn’t be getting much of our tilt from this area.  If you look at the muscles associated with the lumbar area you would find the “core” muscles and their role during the throwing motion is to transfer energy created from the lower body and funnel it towards the upper body.  Higher levels of stability here will allow a more efficient energy transfer which leads to higher throwing velocity.

Tilting from the lumbar would compromise its stability due to the fact that you are asking it to be mobile and not only will it decrease the amount of energy you can transfer (energy leak) but you’ll be placing yourself at a higher risk of injury when you ask a joint to do something that it isn’t designed to do.

Thoracic Region

Moving up the chain to the thoracic spine we find that it is labelled as a mobile joint.  The term mobile here is relative because their isn’t a ton of movement between the vertebra of the thoracic spine but in comparison to the other segments of the spine they are mobile.  The importance of T-Spine mobility is a topic that has been covered before however it’s importance is usually stressed in either the sagittal and transverse plane and not so much the frontal plane.

Sagittal mobility is important because most of our daily activities have us sitting down which increases the likelihood of you hunching forward which compromises our ability to extend. This ability to extend helps amplify the amount of external rotation you get at the shoulder joint which can lead to faster fastball’s. Transverse mobility through the t-spine can buy you some extra degrees of hip and shoulder separation which can also lead to, you guessed it, harder throwing ability.

When we look at tilt however we are looking at frontal plane mobility which looks to be important as well if you want to throw with a high arm slot.

download

Great Tri-Planar T-Spine Mobility Drill for those how lack it.
Be sure to not to move through your lumbar spine here – keep those hips steady!!!

Cervical Region

Moving further up the spine we find the region called the cervical which is labelled as a stable joint.  While our neck can move quite a bit (think of nodding your head in a “yes” fashion up and down as well as a “no” fashion going side to side) all of this mobility is coming from 2 of the 7 cervical vertebra.  These two vertebra are called atlas and axis and are specifically designed for these movements.  The remaining five don’t provide much mobility at all and are thus designed for stability. We don’t end up using this stability to transfer energy like we did with the lumbar stability because we have transferred that energy out towards our shoulder and elbow joints ultimately ending with the wrist and finally the baseball.

This lack of mobility means that the cervical spine is going follow the thoracic spine so if your trunk is tilted there’s a good chance that your head will be tilted too.  The implications of this are that if your head is tilted this means that your eyes are going to be tilted too.  This non-level eye sight line might make hitting your target a little tougher but with a lot of practice talented pitchers can make this adjustment. Especially if it means more velocity.

bauer tilt

Tilted Trunk = Tilted Head = Tilted Eye Sight

Part Three will dive it the rotation vs linear power talk and discuss what type of tilt might be best for you.

Graeme Lehman, MSc, CSCS

 

Throwing with an Over the Top Arm Slot is Faster But More Dangerous!!!!

This was the main finding in a recent study that said pitchers who threw with a more overhand arm slot (they call it “excessive contralateral tilit”) could throw on average 3.3 mph harder but experienced 10% more force to their throwing arm (shoulder and elbow)  More velocity is great but is it worth the added stress from more force being applied to the elbow and shoulder?  

Let’s discuss the following four questions, based on the study:

  1. What is contralatreral tilt?
  2. How do I measure my own tilt to see if it is “excessive” or not?
  3. How does it make me throw harder?
  4. Why is it more dangerous?

In Part 2 of this article I will go on some rants about the information in this study with some more practical and thought provoking ideas.

The study that I am talking about came from the research lab at the University of North Carolina and I got it ahead of its actual publishing date in the American Journal of Sports Medicine. Thanks Peter!!!  Mike Reinold tweeted this study a couple of weeks ago as well.tar heels

The Effect of Excessive Contralateral Trunk Tilt on Pitching Biomechanics and Performance in High School Baseball Pitchers. 

Authors: Sakiko Oyama, Bing Yu, Troy Blackburn, Darin Padua and Joseph Myers from the University of North Carolina.

 

Question #1 – What’s “Excessive Contralateral Tilt” ?

Contralateral tilt is when you lean your body towards your left if you throw right handed.  Check out the Martinez brothers, Ramon and Pedro, demonstrating different amounts of trunk tilt.  Ramon on the left is demonstrating contralateral tilt while Pedro has a very upright trunk with no tilt.

ramon  trunk tilt

Very Little Tilt

If you leaned the other way you would demonstrate what’s known as ipsilateral tilt like Chad Bradford.

ipys tilt

The tilt is required to keep the arm at roughly a 90 degree angle from the body. It’s this 90 degree angle Plus or Minus 5-10 degrees in either direction that is thought of as being safest and most powerful.

Here is a great picture that has three different pitchers all with their shoulders in and around that 90-100 degree angle from their torso yet their “arm slots” are very different.   Since this shoulder to torso angle is fairly similar with most healthy pitchers we should really use trunk tilt to describe where they release the ball rather than arm slot.

different tilts

Question #2 – How do I measure my own tilt to see if it’s “excessive” or not?

What I really like about this study is how they gave us a tool that we can use to determine how much trunk tilt our pitchers exhibit when they throw, using nothing more than a standard camera or two.

They used two synchronized cameras to film each player’s delivery from the side and from straight on.  They used the side view to look for the point when each pitcher reached the point of maximum shoulder external rotation.  Some people call it the “layback” position and it is followed with the explosive internal rotation of the baseball so it’s a pretty important point of the delivery.

cliff lee max er side

Maximum Shoulder External Rotation – Side View

When the pitcher reached this “layback” position they looked at the synchronized camera from the front and took a picture of this particular point in the delivery.

cliff lee max er

From this front view they drew a vertical line straight up from the middle of the landing foot.  If the middle of your head is more than a “head width” outside of this vertical line you demonstrate what these researchers call “excessive contralateral tilt”.  Here is the reason that the researchers used for picking head width as the “ruler” to determine excessive contralateral lean:

“the head width can be easily observed from the frontal view video and is roughly related to the body size, which provides normalized cutoff criteria for each pitcher.

In this picture we can’t see Cliff Lee’s front foot but his head does look a little outside of his knee so he might be a boarder line “excessive contralateral tilter”.

Below you’ll see Maddux on the right WITHOUT excessive tilt and Linsecum on the right WITH excessive tilt.

linsecum

maddux release

These researchers did all the heavy lifting by analyzing each pitcher with their fancy and expensive motion capture system (7 high speed camera system with 40 reflective markers) to see exactly what kind of forces were being produced at the shoulder and elbow joints.

Question 3 – Why Does an Excessive Tilt Increase Velocity?

The reason(s) why the 31 pitchers WITH excessive tilt threw an average of 3.3 mph harder than the 41 pitchers WITHOUT excessive tilt could come from a lot of different factors that weren’t recorded or reported.  While both groups were statistically the same in regards to their age, height, weight and years of pitching experience (all of which can contribute positively to throwing velocity) we don’t know for example how much power they can produce with their legs.  In fact the lower body mechanics were not reported in this study and we all know how important their role is in throwing gas.

In regards to their recorded upper body mechanics the researchers stated:

pitchers with excessive tilt demonstrated less forward flexion of the upper torso at stride foot contact and utilized more trunk movement in the frontal plane and less movement in the transverse plane during the arm-cocking and acceleration phases of pitching.

This statement opens up a whole can of worms because its implying that in the upper body, linear power in the frontal plane is more important in the creation of velocity than rotational power.

johnson

Johnson with No Tilt but A Lot of Rotation

Most pitchers use both linear and rotational power but certain pitching deliveries can stress one of these power sources more than the other.  I have talked about this linear vs. rotational power topic before when I discussed what pitchers can learn from shot putters – check it out here and scroll towards the end of the article to read my thoughts.

http://lehmansbaseball.wordpress.com/2013/07/03/throwing-hard-what-we-can-learn-from-track-and-field-throwers/

The authors of this study also attributed some of the increased velocity to the gravitational forces that can assist between the arm cocking and acceleration phase.  The pitchers without an excessive tilt rely more on the muscles of the hip and trunk to create power.

Question 4 – Why does an Excessive Tilt Produce More Elbow Joint Forces?

It’s pretty simple to understand that guys who throw harder have to deal with more joint forces, it takes a lot more force to both accelerate and decelerate an 90 mph fastball compared to a 80 mph fastball.   This increased risk comes with the territory of throwing hard.  Its when there’s increased levels of force without elevations in throwing velocity that we have to start worrying.  There’s more risk without any reward.

More Risk & More Reward = Good

Higher amounts of proximal force at the elbow and shoulder for example were seenCentripetalForce with pitchers that threw harder regardless of the amount of tilt they used.  In pitching, proximal force (which means towards the middle) at the elbow and shoulder is needed to keep those joints together. Every time you throw, the bones of your arm have been accelerated towards the plate creating what they call a distraction force which means that these bones are literally being pulled away from one another.  So, the more we accelerate our arm, the more centripetal or proximal force we need to decelerate that arm in a circular motion to keep our throwing arm intact.

More Risk & No Reward = Bad

Here’s the bad news for the excessive tilt group – the researchers stated:  

ball speed was significantly correlated to joint moments for the pitchers without excessive tilt but not for the pitchers with excessive tilt.  These results indicate that greater joint moments experienced by the pitchers with excessive tilt are not related to the greater ball speed they produced.

This means that higher throwing speeds resulted in higher amounts of joint moment/torque for pitchers without an excessive amount of tilt.  The excessive tilt group had higher levels of torque at the elbow (varus moment) and shoulder (internal rotation moment) without any increase in throwing velocity.  The added risk wasn’t worth the reward.

Since the tilt group is throwing more over the top, the elbow and shoulder have to deal with stress in a superior direction.  If you look at Nomo in the picture below you can see that he is about to accelerate his arm towards the plate, this is a physical stress that anyone who throws a baseball has to deal with.  But, since he has a great deal of tilt, his shoulder and elbow are going to be accelerated in superior direction as well.  Superior here means towards the sky.

nomo nomo release

Whereas Pedro is only going to have to deal with the stress of accelerating his arm horizontally.

pedro at max ER

pedro release

In Part 2 of this article I will go into some more detail about what this information means and how we can use it to make ourselves and our pitchers better.

Stay Tuned

Graeme Lehman, MSc, CSCS

Wanna Get Drafted Out of High School? Here are the physical stats of players that did. How do you compare??

The purpose of this article is to give young baseball players an idea of just how athletic they need to be in order to play professional baseball.  While you might of heard about how big and strong major league players are you don’t often hear how strong they were when they got drafted as teenagers.  Use these numbers as a goal to work towards in the weight room and on the field.

scouts

How Fast and Strong do you need to be to grab their attention?

Below you will see how athletic profile of players of all between the ages of 16 and 19 in either Cincinnati Reds, Detroit Tigers, New York Mets or Texas Rangers between 2005-2010.  Its even broken down into position players and pitchers.  See below for the actual reference.

So perform these same tests and see how your performance ranks compared to these athletes that have reached the same goal you are trying to achieve.

Athletic Profile of Professional Position Players – Ages (16-19)

jurikson

The very young and very athletic Jurickson Profar

Atheltic   Profile of Professional Position Players Ages 16-19
Weight (lbs) Weight (kg) Lean Body Mass (kg) %Body Fat
Body Weight & Fat 196.7 89.4 79.3 10.8
Jump (inches) Jump (cm) Peak Power (watts) Mean Avg (Watts)
Vertical Jump 27.2 69.0 10410.0 2128.0
Time (sec) Speed (m/s) Kinetic Energy (J)
Pro-Agility 4.45 4.11 754.3
Time (sec) Speed (m/s) Kinetic Energy (J)
10 Yard Dash 1.65 5.54 13171.6
Strength (kg) Time
Grip Strength 50.6 300 Yard Shuttle 51.7

Athletic Profile of Professional Pitchers Ages 16-19

homer

The Powerful Homer Bailey – Drafted out of High School

Atheltic   Profile of Professional Pitchers Ages 16-19
Weight (lbs) Weight (kg) Lean Body Mass (kg) %Body Fat
Body Weight & Fat 201.3 91.5 80.6 11.7
Jump (inches) Jump (cm) Peak Power (watts) Mean Avg (Watts)
Vertical Jump 26.3 66.8 10342.0 2129.0
Time (sec) Speed (m/s) Kinetic Energy (J)
Pro-Agility 4.68 3.91 698.0
Strength (kg) Time
Grip Strength 50.5 300 Yard Shuttle 51.6

Below you will find out how to complete all of these tests to get your own numbers.  Again us these numbers as a starting point and the numbers you see in these charts can serve as your goal.

Print these charts out and put them up in your gym to remind yourself of how hard you need to train in order to improve your physical tools in order to improve your chances of getting drafted as a teenager.

The Tests

Body Weight and Body Fat: stepping on a scale to see how heavy you are is easy enough but it would be nice to know how much of that weight is fat and how much of it is lean muscle mass.   Having a lot of body weight is a good thing because it allows you to generate more energy which you can transfer into the ball when you throw or hit.  But if that body weight is high because of fat you can’t generate the kind of speed needed to succeed in the game of baseball.

Try to find someone who is skilled using body fat calipers.  You can get them to measure your thigh, stomach and chest for body fat then plug into in the Jackson-Pollack 3 body fat formula which is the formula used in the study where I got these numbers.

10 Yard Dash: Due to the short amount of time and distance is does make it a bite harder to accurately time the 10 yard dash.  If you have access to laser gate timers then go for it.  If not use a stop watch.  If coaches can accurately measure a catcher’s pop time they can get a 10 yard dash time.  If your wondering why a 10 yard dash and not a 60 yard dash then click here to read about why acceleration is so important. http://lehmansbaseball.wordpress.com/2012/06/17/accelerate-your-game-how-to-improve-your-game-speed/

By looking at the combination of your 10 yard dash time and your body weight we can easily figure out how much energy you are creating.  Remember how I mentioned above how important body weight was in creating momentum?  If you are big and can run well then you create a lot of energy that can be used with a either a bat or ball in your hand.  Pitchers for whatever reason didn’t perform the 10 yard dash.

To calculate your speed and the amount of energy you create follow the these calculations

  1. To get Speed in terms of meters per second take the number 9.41 and divide by your 10 yard dash time.  (10 yards = 9.41 meters)
  2. Divide your body weight by 2.
  3. Take your speed number (step 1) and square it.
  4. Multiply the numbers you got from step 2 and 3 together to get your final kinetic energy factor number in Joules.

To learn more about importance of kinetic energy check out this article: http://lehmansbaseball.wordpress.com/2013/08/06/the-big-league-athlete-combine-how-to-better-test-for-baseball-playing-ability/

Pro-Agility: Again this test places an emphasis on short burst of acceleration, 3 of them to be exact.  The athlete must also show how well they can decelerate which takes a lot of strength and coordination.  If we apply the same the equation that we did for the ten yard dash then we can get reading on how much power is being produced with the momentum that each athete creates based on their speed and mass.  The only difference is that take the number 18.82 and have to divided the number of seconds it took you to complete the test.

pro agility

Vertical Jump: Once you get your vertical jump score in centimeters we can plug that into a formula along with your body weight in kilograms to calculate the amount of power you produce.  You will get two different scores both of which are measured in Watts which is a unit of power.  The “Peak Power” score tells you how much power you created during the take off while the “Average Mean” score is how much power you averaged for the entire jump.  They are different but both important because they have been shown to predict power numbers for hitters such as home runs and slugging percentage.

To learn more about the importance of jumping power in baseball read this article: http://lehmansbaseball.wordpress.com/2012/06/05/why-jumping-is-important-for-baseball-players/

Peak Power Equation = (61.9*cm)+(36*kg)+1822

Mean Average Power = (21.2*cm)+(23*kg)-1393

300 yard shuttle: Pretty easy to set up but not much fun to do.  Set up two cones 25 yards apart.  Run to one cone and then back to the first cone to complete one round of 50 yards.  Repeat that five more times for a total of 6 in order to run 300 yards.  Rest for 5 minutes then run it again.  Take the average of the two as your score.

Hand Grip:  For this test you need to get your hands on a hand grip dynamometer.  Pun intended.  Ideally it is made from the good people at Jamar because that is the brand they used in this study.

The Study: 

Mangine GT, Hoffman JR, Frangala MS, Vazquez J, Krause MC, GillettJ and Pichardo N.  Effects of age on anthropometric and physical performance measures in professional baseball players.  Strength Cond Res. 2013 Feb; 27(2); 375-81

Sincerely,

Graeme Lehman, MSc, CSCS

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