Because I am a mental weakling I like smart trainers - they ensure that if your interval is 20 minutes at 280 watts then that's what you are going to do, not the first three minutes at 300, then 10 minutes at 280 and the final seven minutes varying between (I can do this!) 320 and (fuck this hurts!) 250.
Plot the session, hit go, turbo inflicts suffering on you, fin.
Because I am a mental weakling I like smart trainers - they ensure that if your interval is 20 minutes at 280 watts then that's what you are going to do, not the first three minutes at 300, then 10 minutes at 280 and the final seven minutes varying between (I can do this!) 320 and (fuck this hurts!) 250.
Plot the session, hit go, turbo inflicts suffering on you, fin.