Exercise For Weight Loss
The key to weight/fat loss is a calorie deficit diet.
Exercise as a means of increasing weight/fat loss is a distant second.
The benefit of exercise is that it increase Insulin Sensitivity, as well as preserving muscle mass or increasing muscle mass.
With that said an increase in muscle mass doesn't increase you metabolic rate that much. Research show that the net increase in metabolism from gaining a pound of muscle means you end up burning around 80 kcal more a day; which is still good.
Walking For An Hour
1) Walking for an hour does not burn that many calories but it does help.
2) Walking (low intensity activities) do not increase your metabolic rate that much.
The longest, lowest level "activity" is sleeping. As we know, the longer and lower the intensity of a activity, the greater percentage of body that that is utilized and burned.
3) There are plenty of obese individual who work but never lose weight.
To paraphrase, "You can't walk off (out train) a bad diet.
4) Walking may burn more initially burn more calories that swings. However, the amount is minimal.
Excess Post Oxygen Consumption
1) Walking, any low level activity, dose produce an increase in you post metabolic rate.
2) High Intensity Interval Training or High Intensity Resistance Training increase your post metabolic rate.
Forget the Fat-Burn Zone
"...The total energy cost of the ET (like your Walking) program was substantially greater than the HIIT program. The researchers calculated that the ET group burned more than twice as many calories while exercising than the HIIT program. But (surprise, surprise) skinfold measurements showed that the HIIT group lost more subcutaneous fat. "Moreover," reported the researchers, "when the difference in the total energy cost of the program was taken into account..., the subcutaneous fat loss was
ninefold greater in the HIIT program than in the ET program." In short, the HIIT group got 9 times more fat-loss benefit for every calorie burned exercising." Source: (
Metabolism (1994) Volume 43, pp.814-818), Angelo Tremblay, Ph.D., Physical Activities Sciences Laboratory, Laval University, Quebec, Canada
P90X, Insanity, CrossFit, Orange Theory Gyms
One of the primary reasons of the weight/fat loss with the above program and organization is they utilized some type of High Intensity Interval Training Protocol.
The Downside of High Intensity Interval Training
1) It mentally demanding; hard to push yourself to the limit.
2) It can be hard to write it into your program if that program is already fairly highly intensive. It can burn you out physically and mentally.
Walking Suggestion
1) Use a form of moderately intensive walking to nudge you post metabolic rate up.
2) Alternate your walking speed/intensity. Walk fast until you get tired, the walk slow or at a moderate speed, whatever you are comfortable with. Repeat that protocol during your hour of walking.
Kenny Croxdale