I found a secret treadmill at the gym that goes 15 mph. I got up to 13.5 mph but I didn't want to push it for fear that I would ruin my hamstring. I always knew this but I never calculated the numbers. This obviously explains why it gets harder and harder to go faster. Going from 8 to11 mph you decrease 2 mins per mile but from 12 to 15 you only decrease by 1 min. Not only that but you expend exponentially more energy as the speed goes up.
MPH |
Pace |
15 |
4.00 |
14.5 |
4.08 |
14 |
4.17 |
13.5 |
4.27 |
13 |
4.37 |
12.5 |
4.48 |
12 |
5.00 |
11.5 |
5.13 |
11 |
5.27 |
10.5 |
5.43 |
10 |
6.00 |
9.5 |
6.19 |
9 |
6.40 |
8.5 |
7.04 |
8 |
7.30 |
|