I increased my mileage to 8.7 miles. I felt fine, but I was tired coming back. During the past week I haven't gotten enough sleep, due to making a DVD video of my visit on
Grandfathers Day to the school attended by my granddaughter. Lack of sleep is a quick way for me to be tired :) My wakeup HR was 48, which surprised me due to the lack of sleep. On the way back, I had a muscle near my knee tighten up. It was the area where the hamstrings connect near the knee. I stopped and walked a hundred feet or so each time it tightened. When I got home I stretched the hamstrings.
The water-level in the canal is back up, so they haven't turned it off yet.