Isokinetic Exercise Machine User Interface with Force Display
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Solution Overview
Problem
Conventional weight-based resistance exercise and isokinetic systems face challenges in accurately tracking progress due to varying force throughout the exercise range, requiring multiple readouts and complex monitoring, especially with isokinetic systems that continuously change resistance.
Innovation Solution
A user interface with force measuring devices and a logic system that calculates and displays force differences, using strain gauges to measure force in multiple directions, applying correctional factors via the Pythagorean Theorem for accurate force display, and providing dynamic metrics like maximum and average force, work, and muscle balance indicators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If isokinetic resistance system continuously varies the load to accommodate the user, then the exercise effectiveness is improved, but the complexity of tracking progress and measuring force increases
Solution Approach 1:
The patent combines multiple force measuring devices into a single integrated measurement system that captures force data from both pushing and pulling directions simultaneously. The user interface merges multiple force readings into unified visual displays showing total force, directional force distribution, and workout progress on a single screen, eliminating the need for multiple separate readouts and simplifying progress tracking despite continuous load variation.
2Measurement precision
If multiple force measuring devices are used in isokinetic system, then the measurement accuracy is improved, but the number of readouts and interface complexity increases
Solution Approach 1:
The user interface is designed as a multi-functional display system that simultaneously performs multiple measurement and visualization functions. It displays total force magnitude, directional force breakdown (pushing vs. pulling), real-time force curves, workout progress tracking, and muscle balance analysis all through a single unified interface, eliminating the need for multiple separate readouts while maintaining comprehensive measurement capabilities.
3Device complexity
If weight based resistance exercise uses fixed load, then the device simplicity is maintained, but the exercise effectiveness throughout range of motion is reduced
Solution Approach 1:
The isokinetic resistance mechanism dynamically adjusts the load throughout the exercise range of motion while maintaining a controlled speed. The system varies the resistance force based on the user's instantaneous force output, ensuring optimal challenge across all positions. This dynamic adaptation maintains exercise effectiveness without requiring complex variable resistance mechanisms, as the motorized system automatically modulates force delivery.
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 precise measurement and display of force and work done, improving user tracking and muscle balance awareness, with features like automatic scaling and visual feedback to prevent overload, facilitating effective workout monitoring and progression tracking.
Implementation Method 1
two force measuring devices. The force measuring devices are each capable of measuring force in one direction
Data Source
AI summary
An exercise device consisting of two or more flexible elements originating from different locations and connected to a common handle capable of being moved in a variety of directions. Each element also connected to a resistance mechanism and a force measuring device whereby a user interface and microcomputer determine force and direction and enable creation of customized workouts.