There are so many p90x reviews online that it can be hard to find the exact information workout hopefuls are looking for. This review focuses on the heart of the 60-day intense Insanity Workout – interval training. The 10 DVDs in the set for $119.85 were created by Shaun T. an experienced fitness trainer and former athlete.

Shaun T. spent much time crafting the workouts in this program. He uses a different technique then his competitors and has dubbed it “Max Interval Training.” This method of interval training differs from traditional methods. Traditional methods include intense spurts of training followed by longer periods of relaxing. Max training incorporates pushing the limits and working out for longer periods of time, then using short stretches of time for resting.

All 10 DVDs have a common trend. Workouts are intensified for 4 minute stretches with a 30 second water break in between, then it’s back to pushing the limits. The purpose behind Shaun’s technique is to force your body into the anaerobic zone during workouts. In turn, a large amount of calories is burned in a short time span.

The body is no longer able to supply enough oxygen to the muscles. The body then takes energy from other areas and as a direct result, the metabolism shoots up. Some people work themselves into this zone at such intense rates that they are capable of burning up to 1000 calories in one workout. This is why this program is successful. People burn high amounts of calories, lose weight, and gain muscle definition.

The exercise program includes an intense amount of cardio used to build strength and endurance. Defined abs and six packs are a definite possibility as well as walking away with increased endurance power. The workouts do vary which helps to stave off boredom from doing the same routine day in and day out. Fat burning, muscle toning, slight muscle gain, and flexibility are all included in the results.

This workout comes complete with 10 DVDs. Each DVD runs for a different time span and focuses on a specific area of Max Interval Training. The average duration of each workout, which must be performed six days a week for 60 days, is about 45 minutes. If that is not enough, the program comes with a workout calendar, fitness guide and worksheet, and a nutrition guide.

Shaun T. believes in his product and the workout regimen he created. A 30-day money back guarantee is given to all who purchase the program. Some find the program is just too intense for them. There is no need to buy extra equipment to follow this program, though many benefit from using a heart rate monitor and Plyometric mat.