Sorry, this is a cycling blog and I'm referring to my heart-rate. I first noticed it on Friday. Wednesday was time-trial practice and the fifth day in a row of pretty heavy riding. I took Thursday off to stretch and get in some strength training. Friday I did another time-trial practice, knowing full well the speed would be less. Well, my breathing was ragged and heart-rate about eight beats low. In the next two weeks I needed to improved two minutes over 20k based on the Wednesday time and instead added a minute and a half. Friday's practice did very little for my ego.
Rather than take another day off, I embarked on an early morning recovery ride, my standard Limmer Loop two-hour, twenty-nine mile mostly flat sojourn in the corn fields. With a stated goal of a low heart-rate, I used low gears, 80 rpms for the most part (average for the ride 74), and ended up with an average HR of 108. Interestingly enough, it ended up only a few minutes slower than my previous circuit. This morning I'll ride with a group and see if I can hang at the back and have another day keeping the HR down.
Sunday post-ride: yes, 25 miles with an average HR of 94. True, I rode with the beginners, but we still averaged 12.7 mph.