Exercise Device with Load Sensors for Real-Time Weight Tracking
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Solution Overview
Problem
Current strength training methods, such as free weights and elastic resistance bands, are inadequate in tracking and measuring incremental gains in weight lifted during exercises, as they lack the ability to provide real-time feedback on applied weight and time-under-tension, leading to potential injuries and ineffective rehabilitation routines.
Innovation Solution
An exercise device equipped with load sensors, a display, and user feedback that tracks applied weight, exercise set statistics, and rate of force development (RFD), allowing for wireless communication of data to an external computing device, and includes features like a rotatable display and haptic feedback to facilitate proper exercise form and calibration of resistance levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If free weights are used to track incremental strength training improvements, then weight tracking is possible, but the device becomes cumbersome and causes injury due to inertia
Solution Approach 1:
The patent replaces the mechanical free-weight system with an electronic resistance generation system. Instead of using physical weights that create inertia, the system uses an electronic controller to generate resistance through a motorized mechanism, eliminating the harmful inertial effects while maintaining the ability to track and measure resistance levels precisely through load sensors and control algorithms
Solution Approach 2:
The patent introduces an electronic control system as an intermediary between the user and the resistance mechanism. This intermediary layer (comprising the electronic controller, load sensors, and feedback system) enables precise measurement and tracking of resistance levels without requiring direct manipulation of heavy physical weights, thereby reducing injury risk while maintaining measurement capability
2Object-affected harmful factors
If elastic resistance bands are used for exercise, then portability and safety are improved, but the ability to measure and track applied weight is lost
Solution Approach 1:
The patent implements a feedback system using load sensors that continuously measure the force applied during exercise and provide real-time feedback to both the user (via display or haptic feedback) and the electronic controller. This feedback mechanism enables precise tracking of applied weight while maintaining the safety benefits of elastic resistance bands, as the system can monitor and alert users to proper form and resistance levels
3Measurement precision
If conventional free weights are used, then incremental weight tracking is possible, but real-time feedback on hold time and exercise metrics is unavailable
Solution Approach 1:
The patent implements comprehensive feedback mechanisms including load sensors for weight measurement, timers for hold time tracking, and display interfaces that provide real-time feedback on multiple exercise metrics simultaneously. This feedback system eliminates the information loss by continuously presenting users with data on weight, time under tension, repetitions, and other performance metrics
Solution Approach 2:
The patent creates a multi-functional exercise system that combines weight measurement, time tracking, repetition counting, and performance analysis into a single integrated device. This universal system replaces multiple separate tracking methods with one comprehensive solution that monitors all exercise metrics simultaneously through sensors, processors, and display interfaces
Data Source
AI summary
An exercise device in accordance with the present disclosure may include a body having a first end and a second end, wherein a first end is configured to receive a handle attachment. The exercise device may also include a first connection component disposed at the second end of the body and configured to attach the exercise device to a first resistance component. A sensor may be coupled to the first connection component. Additionally, a processing circuit may be disposed in the body of the exercise device communicatively coupled to the sensor. The exercise device may include a rotatable display configured to be visible to a user as a user performs movements with the exercise device.