We did 5 miles along the beach again today-beautiful run! It was not as humid as our run on Monday, and we finished in 44:40. We ran the first mile in 9:20 and got to the halfway point at 22:28, so we picked up some speed to about 8:50. We ran the second half in 22:10, and our pace varied a bit, from 8:28 to 8:50, according to my Garmin. Our average pace was 8:56 with my heart rate around 160.
Our marathon training plan is based on heart rate and time spent running, rather than mileage, for some of the runs. So, we have to figure out our max heart rates before we start. I know that the 220 minus your age won't be accurate for me, because my heart rate can go up to about 200, and I'm almost 30. I found some articles on the subject, so we'll be doing some scientific tests when we get back to AZ! |