Data as a Fitness Tool

Recently, I’ve been focusing on improving my life by becoming more fit and eating healthy.  I’ve read somewhere that those who record what they eat and dedicate at least 4-5 hours of time in the gym tend to lose more weight and maintain weight for longer periods of time.  I think it’s more about changing your attitude to it and realizing that being healthy is a life style.

Since I am a data nerd of sorts, I’ve come to the conclusion that it would be fun to approach this as a data management problem.  The first thing I did was get an app called myFitnessPal, which you can download on both Android and IPhone (I have IPhone).  It then provides a relatively simple interface to log food as well as a database/search utility to look up food.  The app also has the ability to monitor exercise and water intake.  I decided to keep track of everything I consumed since mid-November and have kept it up for around 50 some odd days now.

To make this more interesting, I also produced a google spreadsheet containing projections (a technique I learned as a fraud analyst) and used this to project weight in the future.  The good news the amount of calories I’ve lost around 40,000 kcal translates to a loss that is significantly lower then the 17 lb that I’ve lost so far (11 lb projection).  The bad news is the projections I built are definitely off, typically by about 1-2 weeks.

The way I built the projections is to use BMR calculation to get a base burn rate (before exercise of any sort).  I then added food and exercise calculations to this.  I take an average (of a few days) that updates every day to get a general sense of net loss rates and then apply that to the future based on the last weight measurement.  It’s been off by one week and one pound, which isn’t too bad.

Of course, like any good business or goal, good quality data matters and so I have extra motivation to as my nutritionist states treat the matter like an accountant.  That motivation ends up translating into more accountability.

I act liberal with food measurements and conservative with exercise calories.  It’s better to be safe then sorry when considering margins of error.  One thing I try not to compromise on is getting to the gym or some physically intense event (like Salsa dancing) 3 times a week for about 1-1.5 hours.  I force myself to do the activity even if I end up just walking for the duration.

Right now, I’m hoping to keep up this habit and see the results in a few months.  I’ve already changed how I view exercise and am looking at potential programs or new ways to exercise (in a more social manner) to reduce things like fatigue (too much cardio in between two days).  It seems that by making exercise a habit I’m forced to deal with new problems, which require new solutions and experiences.  Definitely seeing benefits from doing this.



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