Thanks for the responses, yes that was my understanding too @kurt.braeckel my current 5 minute power record is from a 20 minute test. It’s just hard to take myself there and even harder to do the 20 minute effort after. One benefit I guess is I get to assess both capabilities.
Yes it is my hope that this is possible to get my FTP in line with my other capabilities. I have just finished sweet spot base mid volume 2 with no improvement unfortunately. I am close to peak fitness but it’s my first plateau and 2 tests in a row with no improvement hence I my question today.
Next I have sustained build and 40 ktt specialty planned. I time trial so it’s definetly a limiter. My specialism is hill climb TTS though so the short power is useful too (many uk hills are short 3-12 minute efforts). I do the hill climbs later Sep- Oct and focus on regular TTS earlier in the year. This years national hill climb will be a 20 minute climb for the women’s field so I need to work on longer efforts.
My aim is to close the gap and improve my 20 minute and hour power. Yes muscular endurance is probably the issue, I agree, that’s probably why I feel so destroyed afterwards. Last year I followed sustained power and 40 k tt plans too. But when I got to the 40 k tt I did an 8 minute test got an all time best ftp result and then failed to complete the workouts. I kept trying and burnt myself out and got ill. Ruined my progress for the year but I didn’t understand the issue at the time. I can and have followed criterium specialty plans off the 8 minute test result. But I have not actually held that ftp for longer than 12 minutes (at race pace).
Main difficulty, I find now is I feel I have to adjust workout intensity up for workouts above threshold so I don’t loose my strength and undertrain whilst making my sustained efforts possible and not burning out. The 20 minute test has allowed me to be more consistent but I have not improved. Difficult to be objective about yourself. I really wish I could just follow the plans as is but it doesn’t seem to work for me. I hope you are both right and I can get my actual ftp capabilities in line with 8 minute test. FTP would be above 4 watts per kg then, 4.3 I think. Great power to weight for a female. Any move in that direction would be great but I am hoping it shows potential for growth.