Cabled-Resistance Machine Tension Sensing for Passive Rep Tracking
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Solution Overview
Problem
Existing strength training exercise machines lack accurate and automated methods for tracking user performance metrics such as repetitions and sets, leading to inconsistent exercise programs and inaccurate record-keeping.
Innovation Solution
A tension measurement device is installed along the tension linkage path of cabled-resistance strength training machines to passively measure changes in tension, automatically counting repetitions and sets, and providing performance metrics without user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual record-keeping is used by users, then no additional device complexity is required, but measurement precision and reliability of performance tracking deteriorate due to human error and distraction
Solution Approach 1:
The exercise machine automatically tracks and records performance metrics without requiring user intervention. The tension sensor and controller autonomously monitor exercise parameters, count repetitions, and store data, allowing the system to serve itself rather than relying on manual user input.
Solution Approach 2:
The patent replaces manual mechanical record-keeping with an electronic sensing and control system. Tension sensors, microprocessors, and digital storage systems substitute for human memory and paper records, enabling automated, accurate tracking of exercise performance.
2Extent of automation
If automated measurement devices are added to exercise machines, then measurement precision and automation extent improve, but device complexity increases
Solution Approach 1:
The tension sensor and controller system serves multiple functions simultaneously: it measures tension force, counts repetitions, determines sets, calculates exercise metrics, and stores performance data. This multi-functionality reduces the need for separate dedicated components for each measurement task.
Solution Approach 2:
The controller acts as an intermediary between the tension sensor and the user interface/display system. It processes raw tension data, interprets exercise patterns, and generates meaningful performance metrics, simplifying the overall system architecture by centralizing data processing functions.
3Measurement precision
If tension sensors and measurement devices are installed, then measurement precision improves, but manufacturing complexity and ease of manufacture worsen
Solution Approach 1:
The measurement system is segmented into modular components: tension sensors, controllers, user interfaces, and storage systems. This segmentation allows each component to be manufactured and tested independently, then integrated into the exercise machine, simplifying the overall manufacturing process despite the added complexity of precise measurement capabilities.
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 and automated tracking of user performance, facilitating consistent exercise programs and providing valuable data for athletes and trainers, while also offering branding and resource monitoring benefits for health clubs.
Implementation Method 1
a tension sensor, positioned within a tension linkage path of a cabled-resistance exercise machine, the tension sensor adapted to automatically measure tension along the tension linkage path
Data Source
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AI summary
An apparatus may include a tension measurement device installed at some location along the tension linkage path of a cabled-resistance strength training exercise machine, to passively measure changes in tension along the linkage path. By detecting and interpreting such changes, the apparatus facilitates tracking of personal performance data without the need for the user to perform any record-keeping actions. Rather, such tracking can take place passively, without user action or involvement. Various performance metrics of weight, reps, and sets, may be automatically produced, and may be further automatically augmented as desired. The apparatus may also provide branding, marketing, and physical resource monitoring advantages for the health club/gym. In at least one embodiment, the apparatus described herein may be designed to retrofit legacy cabled-weight and air-resistive strength training exercise machines.