Yesterday evening, I took Zyrtec with dinner. Not because I’ve been having any allergies, but because it seems to enhance staying asleep. I’d had several days in a row of waking up too early and had been accumulating excess sleep debt.
The Zyrtec worked and instead of sleeping from 4 to 6 hours, I slept almost 10 hours. All caught up on sleep, with some to spare. But I felt sluggish and slow, as an after-effect of Zyrtec, which I rarely take and therefore am not used to.
Today’s indoor rowing session was 30 minutes done online with a few other guys. My goal was the same as for the past few days: to adjust the effort throughout the session, so as to keep heart rate near the target heart rate of 130. If you read the recent blog post about choosing that HR target, you know that I used a modification of Dr. Philip Maffetone’s “The 180 Formula,” to arrive at the aerobic target of 130. Upper boundary is 140 and lower boundary is probably around 114 to 120.
When it came time to row, it seemed that I had to row with greater effort at a significantly faster pace, to raise heart rate to the 130 BPM target zone. Afterwards, I used the RowPro 5 for the Mac analysis feature, to compare today’s 30 minutes to yesterday’s. The results of the analysis are the last two screenshots below.
Happy rowing to you, at whatever heart rate.