Training Device Stress Calibration Without External Sensors
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Solution Overview
Problem
Existing training devices for rehabilitation face challenges in determining correct training intensity without external sensors, which are complex, costly, and pose liability risks due to non-medical approval of pulse monitors.
Innovation Solution
A training device with an integrated measuring system and control system that detects performance and stress using a Borg scale, allowing calibration for targeted training intensity adjustment without external sensors, and provides feedback through visual and acoustic signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If external sensors such as pulse monitors are used to monitor training intensity, then measurement precision of stress is improved, but device complexity and liability risks increase
Solution Approach 1:
The training device utilizes the user's own performance data (speed, power, cadence) to infer stress levels through the Borg scale relationship, eliminating the need for external sensors. The system serves itself by using already-collected performance measurements to determine training intensity without requiring additional monitoring equipment.
Solution Approach 2:
The Borg scale serves as an intermediary that connects performance measurements to stress levels. Instead of directly measuring stress with complex sensors, the system uses the Borg scale relationship to translate performance data into stress information, simplifying the measurement approach while maintaining accuracy.
2Reliability
If external sensors are used to detect training stress, then reliability of stress monitoring is improved, but ease of operation deteriorates due to additional equipment
Solution Approach 1:
The system merges the stress monitoring function with the existing performance measurement capabilities. By combining the Borg scale relationship with already-collected performance data, the system achieves reliable stress monitoring without requiring separate external sensors or additional user actions.
Solution Approach 2:
The performance measurement system serves multiple functions: it simultaneously measures training intensity and infers stress levels through the Borg scale relationship. This multi-functionality eliminates the need for dedicated stress monitoring equipment while maintaining reliability.
3Ease of operation
If the Borg scale method is used to determine training intensity, then ease of operation is improved, but measurement precision may be compromised without external validation
Solution Approach 1:
The system provides feedback by comparing the stress value derived from the Borg scale relationship with target stress values. The control system uses this feedback to adjust training parameters, ensuring that the simplified measurement approach achieves the desired training intensity with appropriate precision.
Solution Approach 2:
The system dynamically adjusts training parameters based on the Borg scale-derived stress values. By making the training intensity adaptive and responsive to real-time performance data, the system ensures measurement precision is maintained throughout the training session rather than relying on static pre-set values.
Data Source
AI summary
A training device having a measuring system for detecting the performance achieved by a person undergoing training, and having a control system with an input channel for detecting a stress value and with an output channel for specifying the performance to be achieved. The control system is configured to carry out a method comprising the steps: specifying an initial stress value, detecting the value of the achieved performance when the initial stress value is reached, transferring the value of the achieved performance via the input channel, calculating the performance to be achieved for a training stress value as a function of a scale for perceived physical exertion, and outputting same via the output channel.