Workout Analytics Platform

An all-in-one solution for analyzing swim, bike, and run workouts with performance insights, personalized workout planning, and metrics tracking.

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Features

Calendar View

• Activity Overview: View all completed and planned workouts in one place.
• Detailed Activity Metrics: Click on activities to see an in-depth look at workout details, including planned workouts with pacing goals.
  

Analytics

• Workout Details: View detailed metrics for each workout, including metrics per lap and time spent in training zones.
• Graphs: Visualize pace and heart rate trends, as well as lap-based average pace.

Workout Planner

• Custom Workouts: Create workouts with configurable warm-up, cooldown, and intervals. Each workout must include a warm-up and cooldown, and users can add sets with active and rest periods.
• Export for Garmin: After creating a workout, download it for use with a Garmin watch (requires connecting the watch to a computer for upload).

View Plan

• Planned Workout Details: Click on a planned workout in the calendar to see pacing or power targets per lap.

Upload

• Upload Activities: Upload a .fit file to log a workout, which will then appear in the calendar and update home page metrics.

Threshold Update

• Set Training Thresholds: Set thresholds to personalize training zones, which are then used for future calculations. Update thresholds at any time to keep metrics aligned with current fitness levels.

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Roadmap

Here’s the current roadmap for the project:

• Q4 2024 - Initial Release

  • Fix issues with planned workouts for cycling (support multiple sets)
  • Enable activity rating and feedback based on RPE (Rate of Perceived Exertion)
  • Complete CI/CD pipeline setup
  • Fixing known bugs.

• Q1 2025 - Workout Generation and Improvements

  • Generate a workout based on past activities.
    • Generate running workout
    • Generate cycling workout
  • Migrate endpoint to GO server.
    • Comment
    • RPE
    • Activities
  • Implement load balancer
  • Track intra-workout calorie consumption
  • Set and select equipement per activity
  • Improve overall user experience (UX)

• 2025 - Switching front framework.

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Key Metrics

Training Stress Score (TSS)

TSS quantifies the training load of a workout based on its intensity and duration.

Formula:

$$\text{TSS} = \frac{\text{Duration} \times \text{IF}^2 \times 100}{\text{FTP}}$$

• Duration: The time spent on the workout in minutes.
• IF (Intensity Factor): The ratio of the normalized power (or pace) to the athlete’s functional threshold power (FTP) or pace.
• FTP (Functional Threshold Power): The highest power output (or pace) that an athlete can maintain in a quasi-steady state for approximately 1 hour.

Chronic Training Load (CTL)

CTL represents the long-term training load, often referred to as "fitness." It is calculated as the exponentially weighted moving average (EWMA) of TSS over a 42-day period.

Formula:

$$\text{CTL}_\text{today} = \text{CTL}_\text{yesterday} + \frac{\text{TSS}_\text{today} - \text{CTL}_\text{yesterday}}{42}$$

Acute Training Load (ATL)

ATL represents the short-term training load, often referred to as "fatigue." It is calculated as the exponentially weighted moving average of TSS over a 7-day period.

Formula:

$$\text{ATL}_\text{today} = \text{ATL}_\text{yesterday} + \frac{\text{TSS}_\text{today} - \text{ATL}_\text{yesterday}}{7}$$

Training Stress Balance (TSB)

TSB is the difference between CTL and ATL, often referred to as "form." It indicates an athlete's readiness to perform.

Formula:

$$\text{TSB} = \text{CTL} - \text{ATL}$$