Velocity Plus Kit

$119.00 $59.99

This is a must-have for pitchers who are serious about getting the most out of their performance level and more velocity from their delivery. Developed after years of study and research by Tom House and the NPA staff, it is the easiest way to add durability to your arm and dramatically reduce your injury risk while increasing velocity.


  • Safely add Velocity
  • Safely add Durability to your arm
  • Dramatically reduce injury risk
  • Best way to build both arm SPEED and arm STRENGTH!

Two of the most common questions in pitching are “how can I increase my velocity safely and keep myself healthy long term at the same time?” Well, in order to do this we have to first understand how a pitchers arm works. A pitchers’ shoulder has muscle groups that either accelerate or decelerate the arm. Our bodies will only let us accelerate the arm as fast as our brakes, or decelerators, can handle. Which means a pitcher can throw harder than they do right now, but if the brakes can’t match the acceleration, our brain slows the arm speed down to a level it can manage. With the NPA weighted ball program we focus on building these decelerators to match our accelerators, known as strength parity. In this method we accomplish much more than a “increase velocity now” program. This program will safely add velocity and durability, while reducing risk of injury!

“But there are dozens of weighted ball and velocity programs. How do I know which one to choose or, most importantly, trust?”

Shoulder injuries (one of the most mobile joints in the body) are statistically harder to come back from than elbow injuries (a stable joint). Less than 30% of throwing athletes with significant shoulder issues return to preinjury levels of performance while more than 70% of throwing athletes with elbow issues return to preinjury performance levels. The NPA is, therefore, a “shoulder-centric” organization, dedicated to the belief that you can only accelerate what you can safely decelerate. Parity between accelerators and decelerators is a prerequisite for a player’s long-term health. 
Our weighted ball program was derived from a study conducted at the University of Southern California, in compliance with an Institutional Review Board [an independent committee established to review and approve research involving human subjects, to protect the rights and welfare of the human subjects]. The NPA conducted an 18 week study using professional pitchers. The purpose of the study was to complement traditional shoulder diagnosis and prescription protocols (specifically for GIRD). The results of the study indicate not only do our protocols improve GIRD, but throwing arm health and velocity both improve.

Team discounts are available on request. Please contact us for more information.

Additional information

Weight 6 lbs
Dimensions 20 x 12 x 12 in


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