Let me propose a different volume model. It already exists and ready to use. It's call Skiba Swim Score. It's computed using power data. Power data can more easily be compared, or even translated into energy expenditure data. Even the good ol' trimp model does that. But it will fail in giving enough weight to short and intense segments (intervals). That is because HR (which is used as a base for calculating trimp) is too slow to respond to fast but short bouts.
As for aerobic capacity ideal sets, not sure we are talking about the same thing here. Just read page 429 of Maglischo's bible (since I know you own it). Read the guide lines in building En3 (Overload) sets.
Let me propose a different volume model. It already exists and ready to use. It's call Skiba Swim Score. It's computed using power data. Power data can more easily be compared, or even translated into energy expenditure data. Even the good ol' trimp model does that. But it will fail in giving enough weight to short and intense segments (intervals). That is because HR (which is used as a base for calculating trimp) is too slow to respond to fast but short bouts.
As for aerobic capacity ideal sets, not sure we are talking about the same thing here. Just read page 429 of Maglischo's bible (since I know you own it). Read the guide lines in building En3 (Overload) sets.