Ratings & Reviews performance provides an overview of what users think of your app. Here are the key metrics to help you identify how your app is rated by users and how successful is your review management strategy.
Select your preparation time to get ready for the training session. A good value is 2 - 3 minutes to do pranayama breathing, reduce your heart-rate and mentally prepare for the training. Choose a breathhold time where you can comfortably hold your breath: A good value is 60-70% of your maximum breathhold time. Choose a recovery time that allows you to hold your breath for the same time as you did before. 1 minute is a good starting value. Set either an increase for your breathhold time (start with 10 seconds) for O2 Training or set a decrease of your recovery time (start with 15 seconds) for CO2 tolerance training. Select 8-10 rounds. Tap "start" to begin your training session. Never hold your breath under water without a qualified person supervising you and without proper freediving training/certification!