Hard workout - almost like a stress test
Monday, May 21, 2012
I've been eating low-carb for a while now with just a few exceptions (usually consuming sugar and/or a few non-gluten grains). So I thought it was time to see how my body's ability to exercise has changed.
Unfortunately I forgot my heart rate monitor so was not able to know exactly how high my heart rate went.
I did this test on the treadmill at our local gym. I started walking at 3 mph and increased the speed by 0.1 mph every minute for as long as I could.
The first part, going from 3mph to 4 mph served as a warm-up.
It may have helped to not wear a heart rate monitor because I was not distracted by the numbers.
I ended up running for 31 minutes, covering 2.3 miles and going up to 6 mph.
My usual running speed (aerobic) had been around 4.1-4.2 mph with a target heart rate of about 132 but I really did not have time for regular runs since my last half-marathon in early March.
Today 18 minutes of my workout were over that and 10 minutes were above 5 mph, a speed that I have never exceeded for more than a few minutes before.
My pulse was back to 132 about 2 minutes after I finished and went back to walking at 3 mph.
I may repeat this test about every two weeks and see if there is improvement.