Isokinetic Rotational Training System with Dynamic Resistance and Sensor Feedback
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Solution Overview
Problem
Existing exercise machines lack a comprehensive isokinetic rotational testing, evaluation, and training system that can effectively start with low resistance for rehabilitation and sports training, particularly for athletes and the elderly, and fail to provide adequate support and data analysis for muscle strength and compensation patterns.
Innovation Solution
An isokinetic rotational testing, evaluation, and training system with an improved foot restraint system, knee support system, and integrated sensors and monitor for data collection and display, allowing for adjustable resistance and user-specific training protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If exercise machines provide high resistance from the start, then strength training effectiveness is improved, but rehabilitation suitability and accessibility for weak users deteriorates
Solution Approach 1:
The resistance mechanism is designed to be dynamic rather than static, allowing the resistance level to change based on user needs. The machine enables progression from 1 pound resistance for rehabilitation to 90 pounds for athletic training through adjustable resistance levels and progressive overload capabilities
Solution Approach 2:
The system allows changing the resistance parameter across a wide range (1-90 pounds) to accommodate different user groups. This includes adjusting resistance levels based on user strength, rehabilitation stage, and training goals, making the same machine suitable for both rehabilitation and high-performance athletic training
2Measurement precision
If exercise machines lack integrated data collection systems, then device complexity is reduced, but training precision and performance analysis capability deteriorates
Solution Approach 1:
The monitor serves multiple functions: it displays resistance levels, tracks rotational angle, provides real-time feedback on muscle activation, and records training data. This multi-functionality integrates data collection and analysis capabilities into a single device without significantly increasing overall system complexity
Solution Approach 2:
The system incorporates sensors that detect rotational angle and resistance applied, with this data fed back to the monitor in real-time. This feedback mechanism enables precise measurement of training parameters and provides immediate information to users and therapists for optimizing training protocols
3Ease of operation
If support structures are added to improve user stability, then safety and ease of operation are improved, but device complexity increases
Solution Approach 1:
The handrail acts as an intermediary support structure that provides stability to users during exercise. It serves as a mediator between the user and the machine, allowing users to maintain balance and proper form without requiring complex integrated support systems throughout the entire device
Data Source
AI summary
An isokinetic rotational exercise device provides for training and collection of information of a knee joint as it rotates. The isokinetic rotational exercise device includes vertical supports attached to a base frame that provides for an inclusion of rotational foot plates. The rotational foot plates are connected to cables of a pulley system that allows for an ability to add resistance of free weights and resistance tubing. Bottoms of the rotational foot plates include sensors to measure rotational degree, and the corresponding information is sent to a processor for display on a monitor on the isokinetic rotational exercise device or to an external device. A degree of force used to turn the rotational foot plates when the resistance is added is data collectable through force sensors in the cables of the pulley system.