Mobile Physiological Stress Threshold Determination Using Respiratory Volume Summation
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Solution Overview
Problem
Existing methods for determining physiological stress threshold values are limited to laboratory settings, requiring complex equipment and restricting athletes' mobility during exercise.
Innovation Solution
A mobile apparatus comprising a sensor for measuring respired air volume and a processing unit that computes sum values to determine physiological stress threshold values, allowing for real-time data collection and analysis without the need for laboratory equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If laboratory equipment and complex measurement methods are used to determine physiological stress threshold values, then measurement precision is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent extracts the core measurement function from complex laboratory equipment to a simple wearable sensor that measures only respiratory volume. By taking out the essential measurement (respiratory volume changes) and eliminating unnecessary laboratory equipment (blood sampling devices, complex gas analyzers), the system achieves accurate stress threshold determination with minimal device complexity
Solution Approach 2:
The system enables athletes to independently determine their own physiological stress thresholds without requiring laboratory personnel or complex equipment operation. The wearable sensor automatically collects respiratory data, and the processing unit autonomously calculates stress threshold values, making the measurement process self-service and eliminating the need for specialized laboratory facilities
2Measurement precision
If laboratory-based measurement methods are used, then measurement precision is improved, but ease of operation and adaptability deteriorate due to restricted athlete mobility
Solution Approach 1:
The measurement system transitions from static laboratory conditions to dynamic real-world exercise scenarios. The wearable sensor continuously adapts to the athlete's movement and exercise intensity, capturing respiratory data during natural athletic activities rather than constrained laboratory exercises, thereby maintaining measurement precision while maximizing athlete mobility and adaptability
Solution Approach 2:
The simple wearable sensor serves multiple functions: it measures respiratory volume, tracks exercise intensity, and determines stress threshold values across various sports activities. This universal device replaces multiple specialized laboratory instruments and enables stress threshold determination in diverse exercise contexts (running, cycling, team sports), enhancing both adaptability and measurement versatility
3Measurement precision
If multiple physiological parameters are measured simultaneously, then measurement precision is improved, but device complexity and ease of operation worsen
Solution Approach 1:
The patent uses respiratory volume as an intermediary parameter that indirectly reflects multiple physiological states (aerobic/anaerobic metabolism, stress intensity, fatigue levels). Instead of directly measuring multiple complex parameters like blood lactate, oxygen consumption, and carbon dioxide production, the system uses respiratory volume changes as a mediator to infer these physiological conditions, simplifying the measurement process while maintaining comprehensive physiological assessment accuracy
Data Source
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AI summary
The present invention relates to an apparatus for the mobile determination of at least one physiological stress threshold value of an athlete, wherein the apparatus comprises a sensor for determining the respired air volume at each point in time of a plurality of points in time and a processing unit, which is configured to compute a sum value for each point in time of the plurality of points in time at least based on the respired air volume of a present point in time and a sum value of a previous point in time, to set the sum value to an initial value, if the previous point in time is not within the plurality of points in time and to determine the physiological stress threshold value based on the computed sum values.