The Energy category includes three programs that target cardiovascular development through high-intensity activities.
The Sprint Interval program targets cardiovascular development using speed intervals at a constant slope.
Time
20 minutes
30 minutes
40 minutes
Speed (mph)
From 4.5 to 7.0
From 5.8 to 8.5
From 6.8 to 9.5
Incline
0%
1%
2%
Intensity
4 steps
4 steps
4 steps