The Kinetic Arm

The Kinetic Arm is bringing dynamic, dual-joint support into the youth baseball arm health conversation.

UCL injuries and Tommy John surgery are a growing concern for young throwing athletes — and Kinetic Arm founder Jason Colleran believes parents and coaches should be asking a bigger question: why has throwing-arm support historically focused on individual joints when the shoulder and elbow work together during every throw?

Throwing is not an elbow-only movement. The shoulder and elbow work together throughout the throwing motion, transferring force across the arm with every throw. Yet when we talk about supporting throwing athletes, those two joints are often treated separately.
The Kinetic Arm was designed to address both.

Powered by patented MuscleWeb® technology, the Kinetic Arm provides movement-responsive, dual-joint support for the shoulder and elbow together without rigidly restricting the athlete's natural throwing motion.

Biomechanical research in adult baseball pitchers found that wearing the Kinetic Arm was associated with:
▶️Significantly reduced elbow varus torque
▶️Lower shoulder distraction force throughout the throw
▶️No decrease in ball velocity
▶️No change in maximum shoulder external rotation

The study measured biomechanical loads — not injury outcomes. But those findings give parents, coaches and throwing athletes another reason to think differently about how the shoulder and elbow are supported during repetitive throwing.

Baseball parents: if the shoulder and elbow work together, should support work that way too?

"It helps keep my elbow and shoulder stable when I'm going to throw."

That's Falmouth Commodores pitcher Gavin Gregor, walking teammate Pearson Riebock through the Kinetic Arm. Playing together in the Cape Cod Baseball League, the two talk through its adjustable fit and the dynamic dual-joint support it provides for baseball players:

▶️Shoulder and elbow support in one system
▶️Adjustable to the athlete
▶️Designed to move without rigid restriction
▶️Built for training and competition

And one of Pearson's questions is a good one: can you actually wear it during games?

Yes — the Kinetic Arm is built for both practice and game day. 🦾

Coaches: what do your players ask you about arm support? 👇

While you'll often see the Kinetic Arm on baseball and softball fields, throwing athletes extend well beyond the diamond.

Javelin is a full throwing-arm motion — which is why supporting only one joint tells only part of the story.

For javelin and other overhead athletes, the Kinetic Arm provides movement-responsive support across both the shoulder and elbow while allowing the arm to move freely through the throwing motion.

One throwing arm. Two major joints. Dual-joint support designed for both. 🦾

What sport should we feature next? 👇

Quarterback target practice in the Kinetic Arm: call out the target and watch him hit it.🎯

He's wearing the Kinetic Arm on his throwing arm — dual-joint support with MuscleWeb® technology — for dynamic shoulder and elbow support while he works through QB throwing drills. No range of motion interference.

Three targets. Different calls. Same challenge: hit your target. 🦾

Football coaches: which target are you calling first?

Does the Kinetic Arm help with softball pitching? 🥎

Yes — the Kinetic Arm provides dual-joint support throughout the pitching motion while athletes keep their natural range of motion..

Fastpitch pitching moves the shoulder and elbow through a fast, continuous delivery. That means pitchers need arm support that works with their movement rather than limiting it.

Watch the breakdown to see how the Kinetic Arm moves with a pitcher from the start of the pitch through release — and it supports softball players at every position, infield to outfield.

Trusted by 100,000+ athletes.

🗣️ Softball parents and coaches: how do you manage pitching workload during tournament weekends?

This quarterback’s dad saw something between throws that led them to Kinetic Arm.🏈

He was shrugging his shoulder to “get loose” and grabbing at his triceps. His dad noticed—and started looking for a way to give his throwing arm more support through training, practices, and games.

Now his 11-year-old quarterback uses the Kinetic Arm during football training, practices and games for dynamic elbow and shoulder support on his throwing arm. 🦾

Here's why: The shoulder and elbow work together throughout the throwing motion. The Kinetic Arm is designed around that relationship, providing movement-responsive support across both joints without restricting natural movement.⛓️

For young quarterbacks taking rep after rep, it’s dynamic arm support designed for the demands of repetitive throwing.

🗣️Football parents and coaches—what signs do you pay attention to as a young athlete’s throwing workload increases?

Anthony Johnson Jr. Little League World Series highlights in the Kinetic Arm

Anthony showed up for Iowa at the 2026 Little League World Series:

⚾ 15 strikeouts
🔥 A three-run home run
💪 Helped Iowa complete a no-hitter
🦾 Kinetic Arm on his throwing arm – dual-joint support for the elbow and shoulder, powered by MuscleWeb® technology

We're proud to see the Kinetic Arm on a young athlete delivering this kind of performance on the mound and at the plate.

Give Anthony a round of applause in the comments! 👏

Parents: what's your pitcher doing for elbow and shoulder support?👇

Kinetic Arm is HSA/FSA Eligible

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Watch Athletes Across Sports Use The Kinetic Arm in Action 🦾

No matter what ball, javelin, or racquet you’re holding, dynamic arm stress is universal. From baseball pitchers and fastpitch players to world-class throwers and volleyball hitters, seeing athletes across every sport back up their shoulders and elbows without losing their natural motion is incredible. Taking care of your arm isn’t just for one discipline—it’s for anyone who throws, swings, or serves at max effort.

What sport are you using your Kinetic Arm for this season? Drop it below! 👇

THE ONLY BALL PUT IN PLAY. THE DEFENSE WAS READY. 🦾🔥

California put just one ball in play against Iowa pitcher Cooper Thissen—a sharp grounder to shortstop in the third inning.

Iowa’s Xavier Ludtke ( #14), wearing The Kinetic Arm, made the backhand stop and completed the play at first—helping protect the combined no-hitter on the Little League World Series stage.

Because a no-hitter takes more than pitching. It takes a complete team. ⚾️