(source: http://flickr.com/photos/kowax09/121290185/)The last couple of days I was not feeling 100% but I did manage to squeeze in an hour of yoga, a monofin clinic by Enker, some dry empty lung statics and two fitness sessions.
The later were interesting because I started working on my legs, back and abdominal muscles. I had never done that in my life but I think it will help my monofin technique. It's hard work which I did not do too much of these times, but I (kind of) liked it and am curious if it will actually help.
On the bicycle and glide machines I was doing about 65% whilst holding my breath (30 sec. apnea, 15 sec. breathing). I took the intensity down a notch or two because this feels so much harder than regular cardio fitness. My heartrate normally goes up to 160-165 but while doing this it stayed around 110-115. This should train the muscles in my legs to perform much better in anearobic situations like depth diving or the part of a dynamic swim after the dive reflex fully kicked in. I must admit I have no clue if it will improve my cardiovascular system as much or maybe even more compared to regular exercises.
Good stuff Eric! These apnea exercises are indeed extra hard as opposed to normal cardio, but they will help you just like the dry-walks.
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