Aerobic fitness score ❤️

• We’ve introduced a new Aerobic fitness score to help runners better understand their endurance development. This makes it easier to track your running progress, monitor adaptations, and understand changes in long-term aerobic fitness development.

• Your score is calculated using long-term heart rate vs speed trends, analysing your rolling yearly weekly range, and the training patterns for the last 7-8 weeks. This provides a clearer picture of how efficiently your body performs over time.

• This feature is available under Overview for all runners (including on the free plan) 💸

• The score is displayed on a simple 0–5 scale. A higher score means your recent weekly aerobic fitness is stronger compared to your rolling one-year baseline. The % change indicates how the last 8-week score has changed compared to the 8 weeks before.

  • Base - up to 0.99

  • Moderate - 1 - 1.99

  • Good - 2 - 2.99

  • Great - 3 - 3.99

  • Excellent - 4 to 5

Other updates 🛠️

• Updated activity units: cycling now shows speed in km/h, while swimming distance is shown in metres and pace in min/100 m.

• Fixed an issue where AI insights did not correctly account for sleep hours from Garmin or Oura when some nights had missing data.

• Improved the logic of how KULG AI insights interpret HR vs speed trends.