“I want to track 'recovery' metrics”

Several wearables provide “recovery” metrics based on combinations of other metrics (e.g., sleep, heart rate, heart rate variability). These are hard to validate, given that they are based on private algorithms made by each wearable company. If you would like to track recovery metrics, consider the following:

1. If there are sustained changes in your recovery, refer to the raw metrics (i.e., sleep, HRV) to see if any changes coincide.
2. Several of these metrics provide a score out of 100, indicating how recovered your body may be. Lower scores do not mean that you will not be able to perform that day. Pay attention to recovery practices that have positive impacts on next-day recovery scores, rather than worrying about performance impacts.