Go ARENA app utilizes advanced algorithms to calculate how much work your muscles need to do each week in order to see gains. Every Sunday you are given a weekly Optimal Training Dose (OTD) goal based on your performance data. You can hit your OTD goal by doing pre-programmed workouts or your own freestyle workouts on the ARENA Platform.
It takes about a week of consistent workouts for the ARENA Platform to learn and calibrate your performance and calculate your OTD goal.