Hi there,
For past few years I have been cycling outside on max elevation 14m for 25-50km almost daily doing avg 25km/h in summer/spring/autumn, also I work out 2-3 times a week for past few years, so I would not consider myself as a couch potato.
I have decided to buy a smart trainer and start zwifting when the weather is bad, however I have hard time to even finish a 5km ride. My thighs are just burning during warmup which requires me to do around 200w for 2/5 intensity.
In short, zwifts warmup is almost my peak performance.
Is there any training program for weaklings like me? Or should I just go for it and to more short but hard sessions not finishing the workout until my body gets used to it?