found this website, and thought i would share. might answer questions, might be total bs, i don't know, but here it is.

Bodybuilding.com - Wannabebig.com - Tips For Outsmarting Your Fat Cells Part Two!

Tips for Outsmarting Your Fat Cells

An active cell is a fat-burning cell. That's why cardiovascular exercise has been touted as a fast and efficient way of losing excess body fat.

The question of the superiority of low intensity/extended duration over high intensity/short duration exercise has been Vigorously debated. Current exercise literature uses the questionable term "intensity." "High density/low density" or high/low work rate would be more suitable terms. To keep things simple, I'll be using the term "high/low density" throughout this article.

On one side of the debate you have aerobic instructors and the so-called exercise 'gurus' of our times spewing forth propaganda which claims that jumping up-and-down for 30-60 minutes to the sound of Richard Simmons is more efficient than leaving that small reservoir of perspiration on the floor and equipment following a high density work-out.

To understand the difference between the two methods we must first distinguish between the way they work.

Low Density/Long Duration (LD/LD) workouts are typically performed in the range of 50-65% of one's max heart rate ( 220-age = Max Heart Rate).

Part of the reason fat is used as a primary source of fuel during LD/LD is because fat molecules contain large quantities of energy per unit of weight.

High Density/Short Duration (HD/SD) workouts are usually performed in the range of 70-90% of one's max heart rate, so they can also be labeled as interval and anaerobic training methods. The HD/SD method derives its source of energy primarily from the phosphagen and glycolitic systems.

So, the verdict is in. It has been proven that LD/LD exercise metabolizes fat more efficiently than HD/SD exercise. On the other hand, HD/SD exercise has, over an extended period of time, shown a greater decreases in fat stores. Each method is useful depending upon individual circumstances, and factors such as time, current fitness level and the presence of potential cardiovascular problems
SensiGirl Reviewed by SensiGirl on . Exercise, how much, and how often? found this website, and thought i would share. might answer questions, might be total bs, i don't know, but here it is. Bodybuilding.com - Wannabebig.com - Tips For Outsmarting Your Fat Cells Part Two! Tips for Outsmarting Your Fat Cells An active cell is a fat-burning cell. That's why cardiovascular exercise has been touted as a fast and efficient way of losing excess body fat. The question of the superiority of low intensity/extended duration over high intensity/short duration Rating: 5