Reply To: Detriment of mixed workouts (ME, Z3, etc. in longer Z1 workout) April 10, 2024 at 10:34 pm #134258 karimirakParticipant Awesome thank you for the help! If doing Z3 intervals at end of a workout, would it make sense to fuel right before the Z3? Or would that remove any possible endurance benefits of doing Z3 at the end?