This is a six week program designed to increase your FTP. Link 1 below is a post about the scientific rationale behind this program. If you haven't set a baseline FTP in a while I would suggest at least performing the FTP test in this power profile plan from link 2. It is important to have accurate training zones. Feel free to send me an email with any questions.
Link 1 - https://www.joshlipkacycling.com/trainingforeveryone/functionalthresholdpowertraining
Link 2 - https://www.trainingpeaks.com/training-plans/cycling/tp-410053/power-tests
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