I love this description of pushing beneath with Z2 and pulling from above with HIIT.
I'm doing this currently, though not strict Z2 or HIIT. I 've switched my primary training for a 6 month period, Apr - Sept this year, to cycling first, and weightlifting second. For the past 4 years it's been weightlifting first, and cycling second. I'm 5 weeks in now and feeling strong on the bike. I'm not worrying too much about zones right now -- just trying to do a long ride, an easy ride, and a hard ride once a week, with total moving cycling time currently around 5 hours per week (up from 2-3 hrs/wk previously) and I'm aiming to increase that by 30 min per week towards September, 12-15 hrs per week to prepare for
an endurance event at the end of September. I feel like the easy and long rides are pushing from below, and the hard ride is pulling from above. However it works, I am definitely improving back towards my previous cycling ability, and it feels great! Meanwhile I'm maintaining fast twitch fiber in the lower body with power training and overhead strength and lifting ability with barbell and kettlebells with 2-4 lighter and less volume lifting sessions thanks to my genius coach
@randyh.