I did HV SSB last year at 50 …no problems. High volume build with those 108% intervals in a 2 hour ride. Lasted 2 weeks until I got ill and my weight crashed down. That said the 12 weeks of base HV increased my TR FTP from 236W to 280W so it works. MV is ok because using o/u etc I got from 280W to 298W this winter just gone - so multiple methods work.
1 Like