42 Minute, 4.75 Mile Treadmill Routine:

Time Speed
0-1 4.0
1-4 6.5
4-6 7.5
6-7 8.5
7-31 Repeat minutes 1-7, four more times
31-36 6.5
36-41 6.0
41-42 4.0
Total: 4.75 Miles