Exactly - well put. There might be some confusion with the terminology. We have to differentiate between:Aelian wrote:Green doesn't require you to run fast, Green allows for tempo & speed-work in your protocol. Green also allows you to run slower without staying under 150 beats per minute. That's it.
HR-Restricted LSS = 130-150bpm which helps with ventricular hypertrophy etc. A specific type of slow run or activity but not the only kind. Can be used during Base, Green, and Black when E sessions are called for.
E sessions = runs or activities that don't necessarily fall within the 130-150bpm - but they're still lower intensity. Fun-Runs, or heading out for a hilly 10k trail run. You won't remain within 130-150bpm. Not a good choice for Base, perfect choice for Green. Can be used for Black.
Tempo/Speed-work - sprints, intervals, going at a harder clip for a period of time. Higher intensity.
HR-restricted LSS runs are always slow runs. But not all slow runs are HR-Restricted LSS.
HR-restricted LSS is always E. E is not always HR-restricted LSS.