Gas station without pumps

2015 March 31

Third weight-loss progress report

Filed under: Uncategorized — gasstationwithoutpumps @ 20:22
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In 2015 New Year’s resolution , I said that I want to lose 10–15 pounds by June 2015. In Weight-loss progress report and Second weight-loss progress report, I provided a monthly updates.

For March, I continued the same diet and exercise as in January and February, except for March 20–29, when I had Spring “break” (a huge pile of grading, rewriting the book for my applied electronics class, and other administrative and course preparation tasks).  I wasn’t cycling up to campus everyday, so my average exercise dropped to 4.31 miles/day of bicycling. Also, my son, a freshman at UCSB, had his Spring break at the same time, and so came home for the break.  Because he is very thin (as I was at a corresponding age), his mother served a number of comfort foods while he was here, to encourage hearty eating.  So I put on a little weight and am trying to lose it again.

A simple linear extrapolation would have me reaching the upper end of my target range by 2015 Apr 23, but an exponential decay predicts that I won't reach it until June 13.

A simple linear extrapolation would have me reaching the upper end of my target range by 2015 Apr 23, but an exponential decay predicts that I won’t reach it until June 13.

I am at the lowest weight I’ve been since I bought the scale in 2011 and started recording my weight.  Although I was losing 1.24 lbs/week in January and 0.74 lbs/week in February, I only lost 0.52 lbs/week in March.  Because of this progressive slowdown, I fit an exponential decay to my weight loss, as well as the simpler linear fit.  The exponential predicts an eventual minimum weight of 157 lbs with a decay time constant of 89 days. This asymptotic weight is comfortably within my target range—but if the exponential holds up, then it will take me longer than I had originally expected even to get within my target range.

During break I had a checkup with my physician, who thinks my target weight range is fine, but she’d be happy even if I just managed to maintain my current weight. Interestingly, my cholesterol was at the lowest level since I’ve had it measured (starting in 1989), and the desirable HDL was actually up.  Unfortunately, I did not check the cholesterol levels before starting my diet, so I don’t know whether the low levels are due to the diet or to the rather high levels of atorvastatin (60mg/day) that I’ve been taking for the past 2 years.  In any case, I’m cutting back to 40mg of atorvastatin a day, and I will check my cholesterol levels again over the summer.

 

5 Comments »

  1. Congrats!

    You got pretty quick results, but mirror my own experience that diet was more important than exercise. (I started running many months before I changed my diet with blood work in between.) I finally went after carbs, especially sugar, because I didn’t want to start on statins or other drugs usually prescribed for borderline A1C and lipids. I hope you find that you can get back to where your body does it without drugs.

    Comment by CCPhysicist — 2015 April 5 @ 09:29 | Reply

  2. […] pounds by June 2015. In Weight-loss progress report, Second weight-loss progress report, and Third weight-loss progress report I provided monthly […]

    Pingback by Fourth weight-loss progress report | Gas station without pumps — 2015 May 2 @ 08:52 | Reply

  3. […] 10–15 pounds by June 2015. In Weight-loss progress report, Second weight-loss progress report,  Third weight-loss progress report , and Fourth eight-loss progress report, I provided monthly […]

    Pingback by Fifth weight-loss progress report | Gas station without pumps — 2015 May 31 @ 21:00 | Reply

  4. […] 10–15 pounds by June 2015. In Weight-loss progress report, Second weight-loss progress report,  Third weight-loss progress report , Fourth weight-loss progress report, and Fifth weight-loss progress report I provided monthly […]

    Pingback by Sixth weight-loss progress report | Gas station without pumps — 2015 June 30 @ 11:20 | Reply

  5. […] 10–15 pounds by June 2015. In Weight-loss progress report, Second weight-loss progress report,  Third weight-loss progress report , Fourth weight-loss progress report, Fifth weight-loss progress report, and Sixth weight-loss […]

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