Training for the 1500/1650: Suggestions?

Correlations between commonly used terminology and the semantic used by lab operators kind of fluctuates. It sometimes take few adjustments in order make sure we're talking about the same things. I am not too crazy about bugging people with OBLA/MAXLASS etc sort of terminology but like I said, it is sometimes handy to refer to these to clarify communication. The pay as you go expression you used very well depicts what's happening when training anywhere within the threshold spectrum (even at MAXLASS). The limiting factors however kind of varies. At lower end, the glycogen availability tends to be the primary cause of fatigue. At the other end though (MAXLASS), the same remains true but you add on top of that an increased accumulated o2 deficit along with drop in blood's PH along with more muscle tissue damage on top of fatigue of nervous system (central/peripheral). meaning that you are clearing the lactate as it accumulates. We now know that when training at threshold level, you allow your body to be more efficient in not only clearing lactate, but using it. It is (among other things) used as a metabolic fuel and to restore glycogen levels in the liver. Two weeks ago I did a set of 15 x 100 @ 1:30 (scm) holding 1:18-1:19, which would be my ideal 1500 race pace, but I don't think I could hold that same pace on a set of 200s in practice without more rest. Not at this point in the season, but later on I have very little doubt. I think you are probably on for a sub 20m 1500. Let us mutually hope this (it's my target over 1500 this year). If you're already worth it though (sub 20) then no doubt you can swim on a 2:45 per 200 interval assuming you are properly rested.

Correlations between commonly used terminology and the semantic used by lab operators kind of fluctuates. It sometimes take few adjustments in order make sure we're talking about the same things. I am not too crazy about bugging people with OBLA/MAXLASS etc sort of terminology but like I said, it is sometimes handy to refer to these to clarify communication. The pay as you go expression you used very well depicts what's happening when training anywhere within the threshold spectrum (even at MAXLASS). The limiting factors however kind of varies. At lower end, the glycogen availability tends to be the primary cause of fatigue. At the other end though (MAXLASS), the same remains true but you add on top of that an increased accumulated o2 deficit along with drop in blood's PH along with more muscle tissue damage on top of fatigue of nervous system (central/peripheral). meaning that you are clearing the lactate as it accumulates. We now know that when training at threshold level, you allow your body to be more efficient in not only clearing lactate, but using it. It is (among other things) used as a metabolic fuel and to restore glycogen levels in the liver. Two weeks ago I did a set of 15 x 100 @ 1:30 (scm) holding 1:18-1:19, which would be my ideal 1500 race pace, but I don't think I could hold that same pace on a set of 200s in practice without more rest. Not at this point in the season, but later on I have very little doubt. I think you are probably on for a sub 20m 1500. Let us mutually hope this (it's my target over 1500 this year). If you're already worth it though (sub 20) then no doubt you can swim on a 2:45 per 200 interval assuming you are properly rested.