1. Home
  2. Health
  3. Exercise

Cardio Gym Workouts: 30-Minute Treadmill Intervals

This cardio workout will help you bust boredom and burn more calories by changing your speed, resistance and/or incline throughout the workout.  You'll alternate intensity intervals where you'll work at a high intensity along with recovery intervals. Increase or decrease the speed and/or duration of each interval according to your fitness level and use the Perceived Exertion Scale to determine how hard you're working.  The speeds and inclines listed are only suggestions...please modify as needed.

Time Intensity/Speed Incline Perceived Exertion
5 min. 3.0 mph - warm-up 1% Level 2-3
5 min. 3.5 - 4.5 - walk/slow jog 1% Level 4
1 min 5.0 - 5.5 - speed walk/run 2% Level 6
2 min 4.0 - 5.0 - walk/slow jog 0% Level 4
1 min 5.0 - 5.5 - speed walk/ run 2% Level 6-7
2 min 4.0 - 5.0 - walk/slow jog 0% Level 4
1 min 5.3 - 5.7 - speed walk/run 1-2% Level 7
2 min 4.0 - 5.0 - walk/ slow jog 0% Level 4
1 min Walk or run as fast as you can 1-2% Level 7-8
2 min 4.0 - 5.0 - walk/ slow jog 0% Level 4
5 min 3.0 - 4.0 0% Level 3
Explore Exercise
About.com Special Features

Learn how you can reduce your your numbers with these nutrition and exercise tips. More >

Keep yourself, and your family, happy and healthy this fall with these tips. More >

We comply with the HONcode standard for trustworthy health information: verify here.
  1. Home
  2. Health
  3. Exercise

©2009 About.com, a part of The New York Times Company.

All rights reserved.