V tach, Semi Vtach, Pre Vtach?
Almost 60 year old now, When younger , did commute year round 4 years never missed a day. Also did 4 long distance rides with loaded bike, biggest one was 8000 miles Alaska to Boston. Also did Ironman triathlon, marathons, Mt Washington hillclimb, etc. Total lifetime bicycle miles is approx 55,000, with a few years/periods totally off the bike due to marriage/work/kids/etc. When I am riding, I stack the miles on.
For the past 23 years have been riding hardboot race/carve snowboards, very intense, good core training. This is where my situation starts, My first day snowboarding for season, after 3 warm up/go gentle runs, the last run I was going in for a break, and when I got the bottom, I was out of breath, this is normal, but this did not slow down as usual , soI went into the 1st Aid door, 50 feet away. I had a blocked left marginal, was ballooned and 2mm stent. I now feel great, and after 10 days of cardio rehab, am double stepping stairs again, with ease.
On the 10th day at rehab,On the arm spin machine, flywheel, after 8 minute warm up of 60 watts, I got it going to 100 watts, ok fine, I am good I went to 160 watts in a burst, held it there, and all is fine. After checking the data afterwards, I got a few Vtach 4 beat, for 2 seconds (if that), starting at 130 bpm. Ok, I have found my limits, and something to stay away from.
Sinced then, no more arm spin machine, I am holding a steady enrgy flow, on the leg push machine, aero spin bike, and treadmill, with no Vtach at all. However , I do push it a small amount , when at 8 minutes out of 10 minutes, all warmed up, so hard not to. At this point in time, the head instructor is saying he is seeing, a small amount of "pre Vtach", "semi Vtach", which he describes to me as he some how is seeing it "about to go" Vtach" , I need/want him to explain to me , show me exactly what he is seeing.
Can any one else here , please explain this , or have had similiar incidents?
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