If you are short on time try this 20 minute cardio workout. This workout contains two exercises that will give you an intense workout in a short time. First you will use a stationary bike followed by the treadmill.
1. Stationary Bike
Time: 5 minutes
Procedure:
1.) Warm up for 1 minute riding at 50 rpms at level 1.
2.) After 1 minute, speed up to 65 rpms at level 3.
3.) Ride 2 minutes at 75 rpms at level 4
4.) Ride 1 minute at 55 rpms at level 1
2. Treadmill
Procedure:
1.) Warm up for 1 minute walking briskly.
2.) After 1 minute, jog at 5.5mph for 5 minutes.
3.) Walk briskly for 1 minute to recover.
4.) After 1 minute, jog the remainder of the 1 minutes at 5.5mph.