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Originally Posted by TKR Try 10 x 100's on the 2 mins and time each 100. Total time under 11 mins seems good and under 12 mins seems acceptable. |
I'm going to assume that you allow breathing at the endwalls between lengths. We do this and call it an FU. Despite the obvious meaning, the actual meaning is Four Under. Idea is to go 4 as fast as you can on whatever interval you're doing. Breathe as many or as few times as you like on the endwalls, no breathing in the middle of a length. Obviously the longer the interval is the faster you should go. We do yards so it's a bit easier on the body, unfortunately. If you are just starting out with this sort of training it is better to start with a long interval and just make the set. In the early stages, the main thing this trains is the mental part of your fitness. And rather than only make 3 and then give up or fail, make all 10 and work on getting them faster on a faster interval. Success on these helps a lot.
I start those new to underwater training with a set of 10 FUs with the only goal to make all the lengths underwater. They do the first one with 10 breaths at each end, if they make it they do the next one with 9 and so on. Say you are down to 4 breaths and you don't make it within the breaths allowed, then you would go back to 5 and continue. When you have finished all 10 you are probably at a comfortable number of breaths at each wall for you to do a hard set. Use that as your guide and be sure that if you only get to 3 breaths that you don't go out on the first one and do a 1-breath turn-and-go. You will pay for it later.
I've known one who has done a set of 8 on 1:30 so they are doing 32 x 25 yards on :22.5. And I am sure that isn't the limit. I would suspect that going on 1:20 isn't out of reach, it will just take someone putting in the time to get there.
For the non-metrically challenged that would be like doing 25 meters on :25 or 8 FUs on 1:40 But given that you have a bit further to go underwater I would guess that adding 5 seconds to the interval would make it more realistic.