I limit it similarly - occasional 8x25 yds @1:00 streamlined underwater dolphin kick with fins, I do not hyperventilate between reps, and come up if I need to. I think GO BEARS thankfully cautioned me a few years back about hyperventilating between reps and pushing too far. There's been a lot more published since then, but apparently the message hasn't reached everyone.
Glad you are cautious :) Always so sad to hear about a tragedy like this...
I limit it similarly - occasional 8x25 yds @1:00 streamlined underwater dolphin kick with fins, I do not hyperventilate between reps, and come up if I need to. I think GO BEARS thankfully cautioned me a few years back about hyperventilating between reps and pushing too far. There's been a lot more published since then, but apparently the message hasn't reached everyone.
Glad you are cautious :) Always so sad to hear about a tragedy like this...