Hi all,
I'm here, but I am struggling a bit as of late. I am binging a bit (especially at night) and am generally down on myself about the whole losing-weight scenario right now. I realize I've lost nearly fifty pounds in only 9 weeks, but I have such a long way to go that it's hard to not get bummed when looking at the big picture... the reality is that even if I manage 15 pounds a month from here on, it'll still take me a year to lose the weight I want to lose.
I'm sure it's a struggle for everyone to go throught this lifestyle change, but for me to do it the way that I do, I have to immerse myself into it... it's pretty much a full-time project. I go to sleep thinking about my morning weigh-in and get up in the morning planning my meals and exercise. I make meals for everyone in the family, and THEN start my own meals preparation. I get tired. I'm worried whether I can do this, uninterrupted, for another year or more.
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OK, enough whining.

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WARNING!! I USED MATH IN THIS POST
I did a LOT of reading on the web yesterday, trying to educate myself a bit more on the whole interval training methodology. What I gathered about the theory behind HIIT (high intensity interval training) is that a workout is intended to cycle your body back and forth between High Levels of Exertion for Short Bursts and Moderate Levels of Exertion for Longer Periods, bracketed by a Warm Up and a Cool Down period. It appears that "High" and "Moderate" levels are defined by heart rate, primarily.
I couldn't find a single set of numbers that everyone agreed to, but it appears your heart rate should reach about 85-90% of your max heart rate during the High Exertion portion of the workout, then drop back to about 65-70% of your max heart rate during the Moderate Exertion portions.
I'm 46. Therefore, my
max heart rate (MHR) is equal to
220 - my age
or
220 - 46 =
174 Beats per Minute
So, during my High Exertion Bursts, my heart rate should be somewhere
between:
174 bpm X 0.85 or
148 beats per minute and
174 bpm X 0.90 or
156 beats per minute.
During my Moderate Exertion periods, my heart rate should come down to
between:
174 bpm X 0.65 or
113 beats per minute and
174 bpm X 0.70 or
122 beats per minute
To do this HIIT properly, it sounded like I needed a heart rate monitor, so I bought a wristwatch-style model for $40 from Big 5 Sporting Goods. I spent the day playing with it and discovered the following:
- My rest heart rate is around 65 bpm
- During Warm Ups (45-48 rpm) my heart rate goes to around 110-115 bpm
- At my Moderate Exertion speed (53-55 rpm) my heart rate climbs to around 130-135 bpm
- At my High Exertion Rate (58-60 rpm) my heart rate climbs to 150-155 bpm
- After dropping BACK to Moderate from High, my heart rate takes almost the whole 4 minutes to get back down to 130-135 bpm.
So what have I learned??
My rpms for the High Exertion portion are good.
My rpms for the Moderate Exertion part is too high still. I don't think I can comfortably go any slower, so I may have to try dropping the resistance a little... I use Level 5 normally, so maybe dropping a couple slots might help.
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Finally, I completed today's workout. 30 minutes total for 2.5 miles. I also did another 30 minutes this morning using my OLD method.
