Throwing Trainer Forearm Connector Limits Separation
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Solution Overview
Problem
Injuries to the shoulder and elbow joints, particularly among youth baseball and softball players, are prevalent due to incorrect throwing mechanics that lead to scapular loading, resulting in high rates of Tommy John Surgery.
Innovation Solution
A throwing trainer comprising adjustable bands and a flexible connector that limits forearm separation distance during the wind-up, promoting proper throwing technique by preventing scapular loading and guiding correct arm path through muscle memory development.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a player throws a ball at full force using conventional technique, then the ball can be thrown at high speed, but tremendous pressure is generated on the shoulder and elbow joints causing injury
Solution Approach 1:
The connector acts as an intermediary device between the player's forearms that enforces proper arm separation distance during the throwing motion. This mediator prevents the arms from crossing the midline, thereby preventing scapular loading and reducing pressure on the shoulder and elbow joints while still allowing high-speed throwing
2Productivity
If a player leads with the elbow and snaps the arm through the throwing motion, then the throwing action is completed quickly, but the elbow drops and creates the greatest risk of injury
Solution Approach 1:
The connector pre-establishes the correct arm positioning and separation distance before the throwing motion begins. By maintaining proper arm separation throughout the wind-up and delivery, the device prevents the elbow from dropping and leading the throw, thereby eliminating the harmful mechanics that cause injury while preserving throwing effectiveness
3Power
If scapular loading occurs when shoulder blades are clamped together, then the throwing motion can be generated, but strain builds up in the elbow/forearm area leading to UCL surgery
Solution Approach 1:
The connector serves as a mechanical intermediary that physically prevents the forearms from crossing the midline during the throwing motion. This enforcement of proper arm separation eliminates scapular loading mechanics, allowing the player to generate throwing power through correct biomechanics without building harmful strain in the elbow and forearm areas
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The throwing trainer reduces strain on the shoulder and elbow, prevents injuries by enforcing proper leverage and muscle memory, and minimizes effort required to throw at maximum speed, thereby reducing the need for surgeries related to incorrect pitching form.
Implementation Method 1
The device includes a first band configured to be fastened about a first forearm of the user and a second band configured to be fastened about a second forearm of the user
Data Source
AI summary
Disclosed herein is a throwing trainer comprising first and second bands configured to be removably attached to right and left forearms of a user, and an elongated, flexible, adjustable-length connector mounted to the first and second bands, the length of the connector being configured to limit the separation distance between the forearms of the user during wind-up for an overhand throw. A device assembly including a measuring tool and a method of practicing throwing also are disclosed.