I follow Xert AI pretty closely in preparation for a recreational gran fondo on a hilly terrain. I perform the presets (generated by AI) on flat terrain.
However, isn’t it necessary to train in a hilly terrain as well?
2)Performing the workouts do not yet lead to a breakthrough. Is this a problem? The workouts do feel good and improvement in fitness seems ok to me.
The workouts will typically not give a breakthrough. Xert will slowly adjust your fitness signature based on changes in the training volume. There are some dedicated breakthrough workouts designed to update your signature. Look for “Xert Fitness test”.
If you are training for a hilly gran-fondo, then I would certainly be training on hills… I am not expert but I know from feel muscle recruitment works rather differently trying to put 300W on the flat compared with 300W on a 10% slope. You need to experiment a bit with the terrain you have around you, but overall I would say its better to utilise the terrain in a productive way (i.e. making your own workouts that fit around the terrain) rather than trying to follow prescribed workouts. For me I have plenty of short sharp hills around, so I can easily do 3-5 min VO2 Max intervals:
Here you see see its still lumpy so I am effectively doing over-unders in the 1st/3rd set.
For sure whatever computer you are using I would make sure you have the ability to pause in between intervals or for example if using Garmin, use a “end interval on lap button” for the rest periods