Thread:
Here are 2 high school arms who made big jumps this offseason. Both these guys went from ~85 mph this summer
to sitting 88-90mph over past weeks.
These are two different types of throwers — #1 is more “loose” & #2 is more “physical/tight”
Now let’s compare...
Here are 2 high school arms who made big jumps this offseason. Both these guys went from ~85 mph this summer

These are two different types of throwers — #1 is more “loose” & #2 is more “physical/tight”
Now let’s compare...
For this post we will stay focused on scap retraction (
line - shoulder horizontal) on the graph
Key in on:
-timing of when they create their max value
- # value at Foot Plant (FP)
- their respective movement strategy of getting IN & OUT (load/unload)
What does it tell you?

Key in on:
-timing of when they create their max value
- # value at Foot Plant (FP)
- their respective movement strategy of getting IN & OUT (load/unload)
What does it tell you?
Athlete 1:
-Creates 80% of max scap load @ FP
-Then struggles to unload the scaps quickly w/ force as he drives elbow extension
We see looser & less physically developed athletes tend to create higher scap load earlier —in order to find “tension” to throw against & create velo
-Creates 80% of max scap load @ FP
-Then struggles to unload the scaps quickly w/ force as he drives elbow extension
We see looser & less physically developed athletes tend to create higher scap load earlier —in order to find “tension” to throw against & create velo
Athlete 2:
-creates ~25% of max scap load @ FP
-torso rotation & arm moving into ER create his max load. Then unloads scap quickly as he drives elbow extension.
We see this w/ more physical & tighter athletes — maximizing their ability to use strength to “close gaps” fast!
-creates ~25% of max scap load @ FP
-torso rotation & arm moving into ER create his max load. Then unloads scap quickly as he drives elbow extension.
We see this w/ more physical & tighter athletes — maximizing their ability to use strength to “close gaps” fast!
At the end of the day both throw 90mph— BUT we treat these athletes much differently in terms of their throwing & strength programming. They will go about achieving higher velocities & their overall development goals in a very different way.
AKA - All aspects of training matter!
AKA - All aspects of training matter!