Viva la difference: Messing with perfection

I've lost 24 pounds since the first of the year, and 12 of them at a very consistent pound-a-week since the middle of May when I took out a new membership at the pool and started swimming several times a week. My progress has all been based on the accountability that comes with posting regularly here at BMGS 2.0 and acting reasonably on the knowledge that I will lose a pound a week if I limit my calories to 2500 a day or fewer and get regular exercise. This is not rocket science.

But I suppose it has made an impression on my pal, and in the past couple of days she has kind of asked me if I would help her do the math so that she could get on track herself and maybe drop a pound or two by the time she celebrates what some might consider a big birthday in late December. Although I am not one to mess with perfection, I have agreed to help.

She is 5'8", and that is all you need to know. Although I have recorded other data in the table that follows, I am a wise man who understands the value of the little Google Docs gizmo that blacks out certain fields. If it worked for Bush and Cheney, it can work for me. Some information is best handled on a need-to-know basis.

As you can see from the table, life is not fair or gender-blind when it comes to the arithmetic of weight loss:


My pal's exercise program involves:

• a) a combination of walking and running for 30 to 60 minutes on the bike trail near our home,
• b) the 8-minutes-a-day workout program with weights, and
• c) situps
• c) some yoga.

Based on her numbers, my take is that, if she does (a) and (b) 4 times a week each and does (c) and (d) once a week, her BMR based on the "moderately active" calculation would be 2087 calories a day, or 14,609 calories a week. That is the rate of calorie intake that would keep her weight at its current level. In order to lose a pound a week, she would have to consume 3,500 calories less than 14,609 each week. In other words, her target rate for daily calorie intake is 1,587 calories.

Now that I am finished with the considerable exercise involved in moving and I am back to swimming with an occasional day of walking and jogging, my exercise program involves:

• a) swimming laps for 60 to 90 minutes without resting;
• b) walking and slow jogging for 20 minutes; and
• c) crunches, pushups, or weights.

Based on my numbers, if I do (a) three times a week and (b) and (c) once a week each, my BMR based on the "moderately active" calculation would be 3227 calories a day, or 22,589 calories a week. That is the rate of calorie intake that would keep my weight at its current level. In order to lose a pound a week, I have to consume 3,500 calories less than 22,589each week. In other words, my target rate for daily calorie intake is 2,727 calories.

It isn't fair that I can lose weight just as quickly as my pal while I consume 1,140 more calories a day, or about 8,000 more calories a week, but, well, viva la difference!

Sources: BMR Calculator, BMR Calculator2, Harris Benedict Equation Calculator.

Afterword: In my 12-step program, this draft post would be called 12th-stepping. But whether I post it will depend, of course, on whether my pal feels her anonymity is protected.