Closed-Trajectory Training Device with Location-Based Resistance
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Solution Overview
Problem
Existing fitness training devices lack the ability to adjust resistance based on the objective physiological conditions of the user, leading to insufficient customization for diverse user conditions and fitness goals.
Innovation Solution
A training device equipped with a force receiving component, location detector, resistance generator, and controller that adjusts resistance based on the location of the force receiving component, providing different resistances at different points in a closed trajectory to target specific muscle groups or extremities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed resistance is provided in training devices, then device structure is simple, but it cannot meet diversified user conditions and fitness goals
Solution Approach 1:
The patent applies dynamics by making the resistance adjustable rather than fixed. The resistance generator can dynamically change resistance levels based on detected muscle activation signals, allowing the device to adapt to different user conditions and fitness goals while maintaining a relatively simple base structure.
Solution Approach 2:
The patent changes the resistance parameter dynamically during exercise based on detected physiological conditions. By monitoring muscle activation levels and adjusting resistance accordingly, the system provides personalized training without requiring multiple different devices or complex mechanical configurations.
2Measurement precision
If resistance is adjusted according to subjective cognition, then adjustment is simple, but it does not reflect objective physiological conditions
Solution Approach 1:
The patent implements feedback by using sensors to detect muscle activation levels and feeding this information back to the resistance generator. This closed-loop system automatically adjusts resistance based on objective physiological measurements rather than subjective user perception, improving measurement precision while using standard sensor technologies.
Solution Approach 2:
The system performs self-adjustment of resistance based on detected physiological conditions without requiring constant manual intervention. The controller automatically processes sensor data and modifies resistance levels, reducing the need for complex manual control mechanisms while achieving precise physiological-based adjustment.
3Adaptability or versatility
If uniform resistance is applied throughout the closed trajectory, then device structure is simple, but it cannot perform intensive training on specific muscle groups
Solution Approach 1:
The patent applies local quality by adjusting resistance at specific points in the closed trajectory rather than uniformly throughout. The system detects muscle activation levels at different positions and applies targeted resistance increases when specific muscle groups are actively engaged, enabling intensive training on particular muscles while keeping the overall device structure simple.
Data Source
Figure 1
Figure 2A~2B
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AI summary
A training device (3) includes a force receiving component (31), a location detector (32), a resistance generator (33), and a controller (34). The force receiving component (31) moves along a closed trajectory. The location detector (32) is configured to detect a location of the force receiving component (31) in the closed trajectory and to output a location signal. The resistance generator (33) is configured to exert a resistance on the force receiving component (31). The controller (34) controls the resistance generator (33) to adjust the resistance based on the location signal.