OK - this might be controversial, but maybe educational, too.
Hypothesis: Exercise is a lousy way to lose weight
OK - fitness guys, jump in.
Exercise is vital to good health. It's great for the cardiovascular system, and a pound of muscle is sure better for us (and our appearance) than a pound of fat. So, nothing against being fit -- quite the opposite, we're strong believers in the value of exercise to maintain a healthy lifestyle.
But -- not to lose weight -- unless you plan to walk the Appalachian Trail or run a marathon every week. Look at facts: (from Mayo Clinic)
"The prevailing belief that since a pound of fat (when burned) gives off 3,500 calories and since running or walking a mile burns 100 calories, a person should lose a pound for every 35 miles. In other words, if a previously inactive person starts running or walking five miles a day, that person should lose a pound a week, all other things being equal.
Not so because this estimate fails to subtract the number of calories that a person’s body would have used had it just sat still for those hours. Rather, for a 154-pound person, the net caloric cost would be 54 calories per mile when walking up to 3.5 miles per hour, 97 calories speed-walking at 3.5 to 5 m.p.h., and 107 calories jogging or running."
Here's a chart from Mayo:
Activity and speed -- Body weight 160 pounds 200 pounds 240 pounds
Jogging, 5 mph -Calories burned/hr 584 -------728-------872
Walking, 3.5 mph ----------------------- 277------- 346-------414
So, how does one lose weight? Reduce your caloric intake
When you come home after that one hour of jogging, feeling smug and self-righteous, and 'treat' yourself to a breakfast of bacon, eggs, and toast (slathered with butter and jam) you've just blown the weight benefit of the exercise. Have a Big Mac meal for lunch, and you'll be jogging all afternoon and into the night to equalize those calories.
The previous post has great ideas, and all we'd add is don't expect the exercise to do the trick for you. If you want to win Roger's contest, we'd suggest you also do the following (from Mayo Clinic):
1. Eat sensible food portions (portion control) Portion control is often underestimated. In fact, the trend toward larger food portions gets much of the blame for the growing number of overweight people.
2. Discourage overeating by placing only the appropriate servings of food on dinner plates (preferably no larger than 8 in. diameter), rather than put serving bowls on the table.
3. Don't eat second helpings.
4. When eating out, ask for a takeout container. Save part of the meal for another time.
5. Split a meal with your spouse or friend.
6. Don't feel as if you have to clean your plate.
These are lifestyle changes for most of us.
The myth (to make some folks rich) is that you must go 'on a diet' -- and how many diets are there? Studies have proven that folks who 'diet' to lose weight, relax after reaching their goal and then proceed to add 10% to their original weight. Go on a diet twice and see what that does to the average person's weight. Follow the ideas above, change your life style, and cut those calories and you'll lose weight.
So, Roger, we applaud your 'contest' but have another suggestion: Double the prize for who keeps off the most weight one year after the end of this year's contest.
We have been taking a nutrition/cooking class from South Denver Cardiology Center (my cardio doc is the cooking instructor!) and it is great to get the scientific take on weight loss. We're not entering Roger's contest because, since staying strictly with a (life-style change) heart healthy diet (and exercise) since last spring, we have (as a side benefit) lost almost 10% of our weight.
This discussion is about weight loss, but perhaps there could be another (if folks are interested) in healthy diet -- and weight loss would probably be a result.