is only zone 2 training gonna improve my running, swimming and cycling?
i am relatively new to training, and i have decided to train for an ironman in 3 years.
i currently train 6 things:
personal hobbies:
- kickboxing 2x/week
- gym 4x/week
- climbing 1x/week
ironman training:
4. running 2x/week
5. cycling 2x/week
6. swimming 2x/week
i did some research and landed on keeping the kickboxing, gym, and climbing sessions high intensity (zone 4/5) (i cannot lower the intensity for those), and the running, swimming and cycling lower intensity (zone 1/2) so that i dont burn out or over train
after trying this out i feel conflicted, the training that i do for the ironman is all low intensity, and i feel like its not enough to be getting good at them, but i am only one week in.
my question is: is only zone 2 training gonna improve my running, swimming and cycling? and if not what should i do?