Notes
Temp 65 Winds Calm.
Working (self) diagnosis has been lower back issue and minor left calf strain that occurred while running with numbness in foot. Over the last several days, have noted that when any symptoms present during normal day-to-day activities, they are becoming more lower back related and less calf related. Both less severe. Overall, good progress. Plan today is to walk to the track and run/walk intervals for as long as I can symptom free. Running straights, walking turns. Twelve lap max.
Cautious start to running intervals until comfortable with strictness. Once settled in, was moving mostly at an 8:30-8:00 pace. Only signs of symptoms were intermittent "taps" when transitioning from run to walk. First signs of "grabbing" in my calf mid-way through 16th run interval. Feel the hand, but never clinched down. Finished last 30-40 meters of straight, stopped, immediately turned around and walked back home. Was a very, very good and productive day...not taking first stride in an attempt to squeeze out one more rep and risk screwing it up.
First four laps at 12:22 average. Second four laps at 11:48. Onward.