FAQ
Questions about periodization.app
How the free builder, starter programs and share links work.
Is periodization.app free?
Yes. The builder, the starter programs and sharing are free, with no account. periodization.app is one of the free tools by iTrain.
How long should a powerbuilding program be?
Most starter blocks here run 4 weeks with a clear change each week. Research on resistance training supports 2 or more sessions a week per muscle group; see the 2016 frequency meta-analysis and the ACSM physical activity guidelines.
How do I share a program?
Press Share in the builder. It saves a snapshot and returns a short link. Anyone with the link can open the program and save their own version.
Can an AI assistant write a program for me?
Yes. ChatGPT, Claude and other assistants can follow the agent guide to submit a complete program and hand you a short link that opens here.
Should I use percentages or RPE?
Both work. Percentages of a one-rep max, such as 70–85%, fix the load in advance. RPE sets the effort, where RPE 8 leaves about 2 reps in reserve. The builder accepts either on every row.
Do I need an account to save my work?
No. Your program saves in your browser as you edit, and Share creates a permanent snapshot link. Accounts on iTrain add a saved library across every tool.
Can I use kilograms or pounds?
Either. Choose the unit in the builder. Loads and maxes convert when you switch.
What the research says
"Its general idea proposes the sequencing of specialized training cycles, i.e. blocks, which contain highly concentrated workloads directed to a minimal number of targeted abilities."
Vladimir Issurin, New horizons for the methodology and physiology of training periodization, Sports Medicine, 2010