I'm no where near the level of diver you are, or the other posters, but here is some food for thought. Consider the source.
Your results look very much like your DR isn't as strong as it should be or maybe used to be, combined with learned samba behavior. I would try to find something that kicks in your DR much stronger. I suspect that will get you beyond the learned behavior issue.
In my case, when I first started doing full exhale, reverse pac, negatives in the pool, I got an extremely strong DR. Today the exact same effort is not nearly so effective. It looks very much like my body is adapting to the stress in a way I don't want. The same thing, or similar, may be happening to you.
I'm now diving frc, using Will's extremely shallow diaphramic breathing, practicing in the pool with a heart monitor, hoping to use it to find the "sweet spot" that will give me the best DR and longest comfortable dive. What I'm finding is that Will's approach can give me the lowest starting heart rate and greatest feeling of relaxation. That seems to yield the best DR and longest dive. The shallow breathing results in a very different feeling to the dive. Instead of a relatively long initial period of complete absence of the urge to breath followed by a strong urge, I get a very low level urge starting very early (which may or may not fade as the dive continues), but the length of the dive before a strong urge appears is much longer (50%+) and the urge builds much more slowly than with other types of breathup. I think what is happening is that the relatively high c02 level resulting from shallow breathing is kicking in the DR earlier and stronger.
Hope this helps.
Connor
Your results look very much like your DR isn't as strong as it should be or maybe used to be, combined with learned samba behavior. I would try to find something that kicks in your DR much stronger. I suspect that will get you beyond the learned behavior issue.
In my case, when I first started doing full exhale, reverse pac, negatives in the pool, I got an extremely strong DR. Today the exact same effort is not nearly so effective. It looks very much like my body is adapting to the stress in a way I don't want. The same thing, or similar, may be happening to you.
I'm now diving frc, using Will's extremely shallow diaphramic breathing, practicing in the pool with a heart monitor, hoping to use it to find the "sweet spot" that will give me the best DR and longest comfortable dive. What I'm finding is that Will's approach can give me the lowest starting heart rate and greatest feeling of relaxation. That seems to yield the best DR and longest dive. The shallow breathing results in a very different feeling to the dive. Instead of a relatively long initial period of complete absence of the urge to breath followed by a strong urge, I get a very low level urge starting very early (which may or may not fade as the dive continues), but the length of the dive before a strong urge appears is much longer (50%+) and the urge builds much more slowly than with other types of breathup. I think what is happening is that the relatively high c02 level resulting from shallow breathing is kicking in the DR earlier and stronger.
Hope this helps.
Connor
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