[cdavis]

Hi Wes,

I've got the same reservations about apnea walking. The ground around here is hard. I do some but don't push it as much as it should be pushed.

Tried your idea and got up to 1:40, after a one minute pause, but it was a stretch. I was alternating between 1 minute holds and 1:30-1:40 holds. I don't have an 02 meter, so go on feeling. It felt not so extreme as apnea walking. I get a funny tingle and tremble in my hands, strong lactate burn in the legs, and a shaky feeling when I push it apnea walking. I got some of that after 1:05 with your idea. Seemed like the C02 level got me before the 02 level dropped extremely low. Could also be the lower exertion level and sitting position makes the symptoms different. I'm not sure. I'm going to play with this some more, seems like it has potential.

On the cycle time, logically a shorter recovery time with fast breathing should result in lower 02 levels, I think. That works apnea walking with just taking 2-3 fast breaths and keep walking. You can achieve a fairly low 02 level on a continuous basis by blowing off the C02 before 02 levls can be restored.

I'm curious, could my 02 level be dropping as low as yours? That would be a bit scary.

Did your 02 readings get progressively lower as the excercise continued?

Connor