What do you mean by isometric holds 30–60s, then progress to 10→3 RM?

Hello and hope you’re all set into your program and how to follow your weekend link. If you already well into the program, please let me know how day 1 and day 2 went. Some of you have already reached out for individual feedback. Please don’t hesitate If you’re still not sure where to start, send me a message and let’s get you on the right track 🔥