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At age 18, Jamie Grosong realized a dream that many young athletes have pursued for years. He was a three-time all-conference player, a Division I college prospect, and a player who lived for game. But one night on the Fourth of July 2023, everything changed. Fireworks exploded in his hand. In a matter of seconds, Jamie lost his pitch, his season, and what seemed like his entire baseball future. The path he had followed since childhood had disappeared. For a while, Jamie accepted this reality. Baseball, the sport that shaped his personality, was over.
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AI-powered bat tracking could give baseball players an edge
Jamie Grosong throws a baseball with a bionic prosthetic arm after losing his pitching arm in a fireworks accident. His return shows how technology can help athletes reclaim what they love. (Kurt “CyberGuy” Knutsson)
When technology opens a closed door again
Two years later, Jamie returned to the baseball field wearing clothes he never expected to use. A bionic prosthetic known as the “Ability Arm”.
“The fact that I can sense and sense everything down to the smallest detail opened up the possibility of everything that could actually be done,” he told CyberGuy.
The goal was not to recreate the past. The goal was to find out what else was possible.
Engineers who build the advanced prosthetic hands saw Jamie's story and asked a simple question. What if he didn't have to give up the game completely? This question began an extraordinary journey that combined persistence, patience and cutting-edge technology.
“When creating Hand of Ability, we prioritized real-life use,” Dr. Adil Akhtar, founder and CEO of PSYONIC, told CyberGuy. “Even though we've already subjected the arm to a significant amount of stress testing, baseball is a completely different ball game.”
Baseball is certainly a brutal test for any equipment. The throw requires precise timing of release. Hitting requires strength, stability and follow through. At first nothing came easy.
Learning to quit again
Throwing a baseball with a bionic arm isn't just about power. It's about timing and acumen. The Ability Hand uses muscle sensors that detect subtle hand movements. During a throw, many muscles are activated simultaneously, which can cause the arm to open too early. Early shots slipped away. Some felt right. Others didn't.
Instead of forcing the hand to squeeze harder, the PSYONIC team adjusted the technique. Jamie learned to hold the ball lightly and allow the momentum to release it naturally. Small changes to the handle made a real difference. Gradually the throws began to land. Then they became repeatable. For Jamie, every clean throw brought back confidence that had been missing for two years.
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Former baseball shortstop Jamie Grohsong returns to the field with a bionic arm, redefining what's possible after life-changing injuries. (Kurt “CyberGuy” Knutsson)
An unexpected moment at Oracle Park
Just as Jamie started throwing again, another door opened. He received an invitation to throw out the ceremonial first pitch at Oracle Park for the San Francisco Giants. This was the team he grew up watching. The deadlines were tight. He had a little over a week to prepare.
The field wasn't perfect. It never mattered. standing on Major League Baseball field using a bionic arm, Jamie proved more than just precision. He showed that the game was still a part of him. He later said that the experience taught him that life does not require perfection to be meaningful.
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Two years after a devastating accident, Jamie Grosong, sporting a multi-membered bionic arm, proves baseball is still part of his identity. (Kurt “CyberGuy” Knutsson)
Can you really hit with a bionic hand?
The throw was only part of the test. The blow raised an even bigger question.
“Swinging a bat was a feeling I didn’t think I’d experience again,” Jamie said.
Engineers have discovered that the position of the bat matters more with prosthetics than with natural arms. When the bionic hand serves as the bottom hand on the bat, the impact is distributed to the fingers. When it is on top, the load is concentrated on the thumb. Jamie throws with his left hand, which puts the prosthetic in a safer position. He told CyberGuy: “I can definitely handle this thing.”
Then came the first swing. The feeling was unfamiliar. The contact was strange. However, the bat met the ball. One hesitation gave way to another. Soon the balls began to fly deep into the field. Then it happened. Jamie sent one over the fence.
World's first moment
These swings marked what many believe to be the first documented home run using a multi-hinge. bionic hand. For Jamie, this was more than a technical milestone. It was emotional closure and a new beginning at the same time. He wasn't trying to prove that prosthetics make athletes better. He argued that they could help people reconnect with the things they love. The bionic arm did not replace his personality. It gave him a new way to express it.
SMART MUSCLES CAN CHANGE THE WAY WE MOVE
Jamie Grosong learns to throw and hit again with the help of a bionic prosthetic, combining determination with advanced technology. (Kurt “CyberGuy” Knutsson)
What does this story say about sustainability and design?
Jamie's return highlights a larger truth about modern assistive technology. At best, the design is focused on real-world use rather than laboratory conditions. Despite this, modern prosthetics remain expensive and imperfect and can break under stress. For this reason, users need time, training, and patience to adapt. But stories like these show how powerful clever engineering can be when it works alongside human determination. Ultimately, it's not about superhero moments, but about access, persistence, and refusing to let one moment define your entire life.
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Kurt's key takeaways
Jamie Grosong's return to baseball is not a story of overcoming adversity. This is a story about their redefinition. Through support, innovation and tireless effort, he found a way to return to the field on his own terms. Technology has not given him back his old life. This helped him create a new version that still includes the game he loves.
Has technology ever helped you reconnect with something you thought you had lost? Let us know by writing to us at Cyberguy.com.
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