The Rewire fatigue assessment system is designed to provide you with a convenient way to assess your daily level of mental and physical fatigue. The system takes a holistic view, measuring your level of psychological, physiological and cognitive fatigue. This system includes a cognitive reaction time test called a Simple Reaction Time Task (SRT). The SRT is helpful for noticing even subtle declines in your focus and decision-making abilities due to mental fatigue. The system also includes biometric monitoring via a heart rate strap which measures your resting heart rate and HRV. If you enable the integration with Apple Health or Google Fit, the Rewire system will also incorporate your sleep data as an additional data point for your assessment. Apple Health and Google Fit integration can be found in the app settings section. Lastly, the fatigue assessment system will ask you a series of self-assessment questions. These subjective questions were developed by Nasa for testing the readiness of astronauts. The testing protocol is called the NASA Task Load Index (TLX).
Note this product is still in beta testing and is likely to evolve based on athlete feedback and additional research