Sustained build part 2 - no FTP gain

Morning all

Completed the second 4 week of sustained build low volume. It was absolutely brutal but only failed on a couple of workouts. Have added a 4th 30 minute HIIT workout mid week when I stay away from home and a very uncomfortable hotel gym bike is my only option.

Did the ramp test yesterday and I maintained my exact ftp. Felt ok in myself (maybe a little tired but nothing unusual for a Monday) and I’m confident I pushed as hard as I could as I found a new max HR.

My plan was to go onto century low volume next but with no gain for so much pain, should I repeat this second block, continue with the century plan or try something different altogether? First goal this year is a 100 miler in mid-May.

Thanks in advance for any advice.

I am just wrapping up SPB part 2 myself and you are right - it is a brutal series of workouts. In a week I may well find I am in your shoes. Curious, did you get a nice bump at the halfway mark? I did and still feel like I am adjusting to the new intensity. Less on threshold but for sure on V02.

You added a 4th hard workout on what would have been a recovery day. 4 HIIT sessions a week may be leaving you depleted and without sufficient recovery to build back up. That is where I would look first.

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Thanks. Maybe just a steady spin might be better for the mid week session.

Felt like I was just hanging on for most of the sessions but absolutely chuffed to finish them. Felt like a real achievement.

I went from 266 to 271 during the first phase. Not a massive bump but still an improvement.

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