Related Experiment Video
Updated: Jul 12, 2026

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography
Published on: March 12, 2021
Adolescent baseball pitching technique: a detailed three-dimensional biomechanical analysis.
Carl W Nissen1, Melany Westwell, Sylvia Ounpuu
1Connecticut Children's Medical Center, Hartford, CT, USA. cnissen@ccmckids.org
This study documents the biomechanics of adolescent baseball pitching, revealing key kinematic and kinetic parameters. Understanding these factors is crucial for addressing the rising incidence of pitching-related injuries in young athletes.
Area of Science:
- Sports Medicine
- Biomechanics
- Orthopedics
Background:
- Adolescent baseball pitchers experience a high rate of injuries.
- Understanding pitching biomechanics is essential for injury prevention.
Purpose of the Study:
- To document the biomechanics of the pitching motion in adolescent baseball players.
- To provide insights into the etiology of common injuries in this population.
Main Methods:
- Utilized 3D computerized motion analysis techniques.
- Collected kinematic and kinetic data from 24 adolescent pitchers.
- Analyzed upper/lower extremities, thorax, and pelvis motion.
Main Results:
- Detailed forearm and wrist motion parameters (pronation/supination, flexion/extension, radial/ulnar deviation).
- Quantified shoulder (glenohumeral) motion, including internal rotation range and peak velocity.
- Identified timing of peak joint velocities and moments relative to the pitch cycle, noting lower values than some previous studies.
Conclusions:
- Established kinematic and kinetic parameters for adolescent baseball pitching.
- These parameters can help investigate causes of increased pitching injuries in adolescents.
- Highlights potential differences between adolescent and adult pitchers for injury research.
Related Concept Videos
Motion of a Projectile
Horizontal motion, governed by the initial kick, maintains a constant velocity throughout the flight of the soccer ball.
Absolute Motion Analysis- General Plane Motion
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the drone...
Relative Motion Analysis - Acceleration
Three-Dimensional Force System
Relative Motion Analysis - Velocity
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
Projectile Motion
When an object falls under gravity and has no horizontal...
