Kinematic System Light Line Projection for Motion Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Human movement patterns often become disordered due to injury or other causes, making it difficult for physical therapists and coaches to effectively communicate and teach proper movement and balance adjustments.
Innovation Solution
A kinematic system that visualizes, evaluates, and modifies human motion by projecting light lines onto a surface, providing visual feedback to help correct balance, posture, and motion, which can be applied to various activities including rehabilitation and sports training.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If physical therapists or coaches verbally explain proper movement to patients or athletes, then communication of movement concepts is attempted, but the subject has difficulty understanding how their movement and balance should be altered
Solution Approach 1:
The system provides real-time visual feedback by projecting light lines that move in response to the subject's actual movement, allowing them to see their own movement patterns and compare them to the desired pattern. This visual feedback loop enables immediate understanding and correction without relying on verbal explanation.
Solution Approach 2:
The system creates a visual copy or representation of the subject's movement through projected light lines that mirror their body position and motion. This visual copy makes abstract movement concepts concrete and observable, allowing subjects to understand their movement patterns through direct visual perception rather than verbal description.
2Loss of information
If visual feedback systems are implemented to show movement patterns, then understanding of proper motion is improved, but device complexity increases
Solution Approach 1:
The system uses a simple intermediary mechanism - a movable mirror or prism assembly - that translates body movement into visual displacement of light lines. This intermediary converts complex three-dimensional movement into simple two-dimensional visual cues on a wall or screen, providing rich visual information while maintaining mechanical simplicity.
Solution Approach 2:
The system replaces complex electronic sensors, processors, and display systems with a purely mechanical optical linkage. The movement of body parts directly drives the orientation of mirrors or prisms, which in turn directs light lines to the projection surface, eliminating the need for electronic measurement and processing while providing immediate visual feedback.
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
Enables effective teaching and correction of human motion by providing clear visual feedback, facilitating neuromuscular recruitment strategies, optimal motor control, and balance improvement, applicable to both rehabilitation and sports training.
Implementation Method 1
output a visual indication... The visual feedback, provided by movement of the line pair on an adjacent surface
Data Source
AI summary
A kinematic system is described. The kinematic system includes a kinematic device for attachment to a subject's body part. The kinematic device projects a light line, and a movement of the light line is used to evaluate a movement, posture, or balance of the subject.