July 01, 2005

a JHC maneuver

Awright, time for a little clarification here.

First, I have lived in this body for thirty-eight years. I know it well. I know what it can do, what it doesn't want to do, and what it should be. I'm moderately fond of it, but there's no denying that it does have some annoying flaws. (IBS and a natural lack of endurance are two examples.) And I know how it can and should look, and how it should perform. Unless you have seen me naked and had extensive discussions about my athletic performance, you don't. I am not the fittest person you know, just possibly the one who talks most about training. It's not the same thing.

Possibly I was misleading when I used the word "overweight". What I meant to say is that I weigh a lot for me. Some of that is good because it's muscle from weightlifting. Some of it is not good, because it comes from not doing enough cardio.I would like to remove the latter weight but not the former; I could happily weigh ten pounds more if it were all functional weight.

Further, I have seen my body change since l I deemphazized training to work on my flying. Not only am I more jiggly, but a year ago I could sit down on any given day and erg a half-marathon. Last year I rowed a full marathon. I don't think I could do either of those right now. Also, I know women who are much fitter who weigh twenty or even fifty pounds more. However, I am not only 5'2" but also small-boned, so as LA commented, a little bit of weight makes a big difference on me. Also, I have a fairly rectangular shape: no defined waist, relatively small bust and hips. Women with an hourglass shape can put weight on and just exaggerate the hourglass effect, but When I put weight on it goes straight to the gut, which is just not an attractive look.

I am trying to get back to where I was last fall, more or less; I'm not trying hard, because training is still not a priority, but I am trying to work out a little harder when I do work out, not to eat when I'm not hungry, and to go easy on the soda and fried foods. I don't think those steps qualify as "obsessive". I may sound obsessive when I write here, but that's mostly because this is the place where I talk about myself and I often work things out for myself as I talk or write. Believe me, I do not go around thinking, "OMG I'm hyoooge!" But I do really hate when clothes that fit well last year are tight.

Second: yes, I am being judgemental. I try not to judge individuals, but I do still judge people in the aggregate. I would prefer more people not to be fat because there are some associated health risks; I want people I like not to have health risks so they'll be around longer and I want everyone else not to send up insurance rates. For similar reasons I'm not thrilled when my friends smoke. Several of them do; I don't bother them about it because they have a perfect right to make their own decisions, but I don't have to be happy about it.

Now, I'm not assuming fat people are stupider or lazier or less sexy or of less worth as human beings. However, what they do have in common is that they weigh more. Ignore for a moment the studies that say that weighing more contributes to heart disease, diabetes, cancer and all that. People argue with all of those, and it's true that weighing too little can also strain some body systems. As an engineer and an athlete (more or less) I tend to look at things from a functional viewpoint. If I'm fat, I have more weight to haul around. That's OK if it's tissue that helps do the hauling (i.e. muscle) but not otherwise. More weight per muscle amount means more to haul over distance when you're walking or runing or cycling or rowing, and it means a lot more impact on land. Force on joints is mass times acceleration. Further, it's an impact force, so the time in question is very small - F = m * dv/dt. dv is the change in velocity - when I walk, my leg goes from whatever speed it's moving at to zero in a fraction of a section, so it's a noticeable change in velocity divided by a very small change in time. It's a lot of force on leg and feet joints, is what I'm saying. Also, if you're fat, you are bigger. There's more tissue to keep oxygenated, so your heart and lungs have to do more work for the same level of activity. Therefore, fat people are likely not to be able to do as much stuff, or to have the stuff they do take a bigger toll of their body. This is why I tend to think it's a bad thing that so many people are fat in the US.

On the other hand, some fat is needed to provide energy to keep the body running and to provide a little padding on the sharp edges. A little reserve seems to help the immunity system, as well - when my weight was too low (the summer I was a camp counselor, some parts of college) I got sick a lot more. This is why overcompensating with strenuous diet or excessive exercise is also bad.

Finally, that 77% weight percentile I mentioned yesterday is by age and height, so it takes by the droopiness of age and my height into account. If it weren't by height, I would expect to have an even lower percentile just because I'm short. If I thought most other American women worked out, I could figure that many of the ones who are heavier are just more muscular. In fact, it's almost certainly true that some of them are in this category, but from general observations, probably not most.

In my specific case, extra weight gained has to be hauled along in a race. It slows me down. Also, I have flat feet and weak knees, so I don't want to increase the imapct on them. I don't plan ever to be a runner, but I have a lot of sightseeing left to do, and walking is a good way to do it. I want my clothes to continue to fit so I don't have to spend lots of money on new ones. I need to retain enough fat to supply energy for long or strenuous workouts and so I get sick less often. I need to be able to work out a lot both for the feeling that I can do anything I want, physically - lift heavy things ro go on for long distances or run fast when I want to - and also because it seems to help a lot with the IBS. I know my operating parameters, is what I'm saying.

Posted by dichroic at July 1, 2005 11:22 AM
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