Training Load is a metric that measures the intensity of your workouts and reflects your physical fitness level. It is calculated based on the amount of time you spend in different personalised heart rate zones during a single workout, combined with fixed weighting factors, resulting in a comprehensive score that represents your overall exercise effort. Specifically, Training Load helps track changes in your fitness under the same workout conditions. A decreasing Training Load indicates improved efficiency – your body completes the same exercise with a lower heart rate, suggesting better recovery and adaptation. Conversely, an increasing Training Load may mean your body requires a higher heart rate to perform the same workout, which could be due to fatigue or poor recovery. By continuously monitoring your Training Load, you can better adjust workout intensity, avoid overtraining or undertraining, and improve your overall fitness more effectively.