******* levels
Custom Field Creation: Enable users to create custom fields in their activity logs. These fields would be specifically designed to record ******* levels at different heart rates. This customization allows for more precise tracking of an athlete's physiological responses to training.
Data Input Options: Athletes or coaches can manually input ******* levels, measured through blood ******* testing during or after workouts, alongside the corresponding heart rate at the time of the test.
Graphical Data Representation: Integrate these custom fields into the platform's existing data visualization tools. For instance, a graph could plot heart rate (BPM) against ******* levels over time, providing a clear visual representation of how ******* threshold evolves with training.
Threshold Analysis: Use this data to help athletes and coaches identify and track changes in ******* threshold. This is crucial for endurance sports, as it can guide training intensity zones and indicate improvements in aerobic capacity and endurance.
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      Mykola Bartosh commented Feature Request: ******* Analysis Tracking Feature Description: 
 We propose adding a new feature to TrainingPeaks that allows athletes to manually input and track their ******* levels for all workouts. This feature will include the ability to visualize ******* data in graphs over time, providing valuable insights into an athlete's endurance and performance capacity.Purpose: 
 The primary goal of this feature is to provide athletes with a deeper understanding of their physiological responses to training. By tracking ******* levels, athletes can optimize their training intensity and recovery strategies, enhancing their overall performance and endurance.User Impact: 
 - Athletes will be able to manually input their ******* levels after each workout.
 - Visualization tools will display ******* levels in graphs over time, helping athletes to identify trends and patterns in their performance.
 - This data will enable athletes to make informed decisions about their training intensity and recovery needs.Functionality: 
 1. Manual Input:
 - Athletes can manually enter their ******* levels after completing each workout.
 - An easy-to-use input form will be available within the TrainingPeaks platform.2. Graphical Visualization: 
 - ******* levels will be displayed in interactive graphs, showing trends over days, weeks, and months.
 - Athletes can customize the time range and granularity of the data displayed in the graphs.3. Trend Analysis: 
 - The feature will include tools for analyzing trends in ******* levels, such as moving averages and rate of change.
 - Athletes can correlate ******* levels with other performance metrics to gain comprehensive insights.User Stories: 
 1. Manual ******* Input:
 - As an athlete, I want to manually input my ******* levels after each workout, so I can track my physiological responses to training.
 - Example: "After today's workout, I entered my ******* level of 4 mmol/L into TrainingPeaks."2. ******* Level Graphs: 
 - As an athlete, I want to see my ******* levels displayed in a graph over time, so I can identify trends and patterns in my performance.
 - Example: "The graph shows my ******* levels decreasing over the past month, indicating improved endurance."3. Trend Analysis: 
 - As an athlete, I want to analyze trends in my ******* levels alongside other performance metrics, so I can make informed decisions about my training intensity and recovery.
 - Example: "By analyzing the trend in my ******* levels and training intensity, I can optimize my training plan for better performance."By implementing this feature, TrainingPeaks can provide athletes with a powerful tool to monitor and optimize their training based on ******* levels, leading to improved endurance and performance. 
