Jan 14th VO2 Test @ Casa del McCrannThey say a picture is worth a thousand words. During this test, I think I only got three words out: "Thirty....more....seconds!" This was my first VO2 Max test, and I will never go back.
Testing is important; real testing is really important. A VO2 Max test captures the cardiovascular system's ability to utilize oxygen by measuring the volume of oxygen consumed while exercising at maximum capacity. Simply put, VO2 max is
the maximum amount of oxygen in milliliters, one can use in one minute per kilogram of body weight. So you get a cool number, right? Well, you also get
very specific heart rate zones as the equipment can determine the point at which your body relies
less on fat as the primary energy source and
begins to use carbohydrates as the key energy source. This point of exertion is called the anaerobic threshold (AT) and corresponds to the lactate threshold (LT).
Lot's of big words, right? Well, to make it simple, you can see the
results of my run test here. (Note: This is a large PDF file, so it may take a while). You can also see the
power zones as derived from my bike test here. As I use a
PowerTap to measure my power output, I don't need to use my HRM alone to measure intensity any longer...this is a much more reliable,
real-time source of data on my effort level.
My ZonesBased on AT testing from 2004, I though my run AT was 176 and my bike AT was 162. Thanks to this test, I discovered that my run AT is actually 164 and my bike AT is 151. In other words, all the time I thought I was in Zone 2, building my endurance, I was in that evil Zone 3 area for waaaaaaaaaaaaaaaaaaay to long...reducing my ability to recover and reap the benefits of teaching my system to burn fat (instead of switching right to carbs). This explains why, when last year I went to training at a super low HR for my run (135-ish), that I say such phenomenal results (b/c it WAS my real Zone One!). There is something for subjectivity after all!
So class, what have we learned??? :-) Get Yourself Tested! Know your zones! Don't rely on
old data for your
new season! If you want the whole enchilada, contact Doug at
Endurance Factor for info on VO2 testing, or
contact me for an AT test. Either way, don't miss the boat...you season could be on board!!!
Happy Training,
Coach P