getting buff

Wednesday, June 14, 2006

easy run

Really enjoyed tonight's run. A couple of running books have introduced me to the concept of "oxygen debt", where the body takes time to adjust to working efficiently at a higher rate. It is helpful because it explains why the first ten minutes or so of my runs lately have been pretty rough. This has been since I have switched from the walk/run to simply running. Once that period passes, I feel much better. Hopefully this will improve as time goes on.

Quick notes. Doctor's appointment yesterday identified a potential problem with high blood pressure. I am going back in three months to see whether the fitness weight loss program makes a significant difference. It certainly can't hurt, but it creates another goal for me to work towards. She is very happy about me losing weight and supportive of the run program. Want to be able to tell her in three months that I have lost a significant amount of weight.

Have scheduled the inaugural northern suburbs running group training session with some people from the ausrun forum on Saturday. Told Hub about the meeting and he said "how are you going to keep up with them?" Thanks for the confidence, buddy.


FYI - Oxygen debt usually refers to when your body is working at a rate too high for oxygen to be supplied fast enough. Running should in theory have you working aerobically (ie supply meets demand), but if you go anaerobic for whatever reason (sprinting or working outside of your training zone - will be characterised by an increase of lactic acid build up)the demand will exceed the supply and your body will need to supply energy via anaerobic means. This is not maintianable for very long and after you stop, your body will need to work aerobically to replace the energy used, clear any build up of lactic acid and return to it's resting state.

This is a very brief and prolly not very clear description but it is hard to go into without talking about the various energy systems used withing the body..... Basically when you are training aerobically, there should be only a small oxygen debt which is recovered quickly. The harder you work the less you are working aerobically and the greater the oxygen debt....hopefully this makes some kind of vague sense!


That doesn't sound exactly like what I was thinking about. Serves me right for being too lazy to get the book and check the reference before blogging about it. Will check it tonight.

The phenomenon I am thinking of was described in two of the books I have which suggests that when you begin serious exercise there is a point at which you change from using one type of energy to using another type. So probably not oxygen debt at all.
Without knowing exactly what you are reading, it's hard for me to say what they are talking about...hmmmmm, now you have me curious! When you initially start working out (for a session) you begin with anaerobic enery systems to get you going, this doesn't last for very long and you kick into aerobic pretty soon afterwards - the idea is that you then stay aerobic - does that sound a bit like what they are describing?

And I don't think you are being lazy - there are an awful lots of different names/descriptions for things and many of them turn out to be the same thing or sometimes the same names for different things depending on who you are talking to and where they have studied - lol :-) The important thing is that you are learning more about yourself and the way that your body works. This all helps you when you are training and experimenting to find what works or doesn't for you.

I'll email you some links for a few articles if you are interested.....but a bit later as I should really prolly be doing some work ;-)

Oh, and are you coming down to Conurg on Saturday arvo??? it'd be great to meet you :-)
It was definitely being lazy. I was sitting on the couch with a glass of red idly blogging and couldn't be bothered walking to the bedroom to get the book.

The book that mentioned it was the runner's world complete guide. Physiologically it was either a change in your aerobicness or a change in the source of energy (perhaps that you first use the glycogen in your muscles and then switch to another source of energy when that runs out).

Anyway, the upshot was that it suggested that the fitter you are, the more efficiently your body handles this, and elite runners never even notice a change. But for mere mortals it could be a noticeable difference and might even explain the phenomenon of getting a second wind. I will look up the reference tonight and post up the details for the sake of completeness.

From my perspective this half remembered tidbit just seemed to fit with the fact that my last couple of runs I have felt dreadful for the first half of the run and thought that it was going to be awful but in the second half have felt like I was kicking arse.

As for Coburg on Saturday, I don't think I will be able to get there due to some family stuff, but I do intend to come to the girls night out.
That would make sense, and also why the fitter you get, the quicker you feel better (or maybe not - I swear it takes me at least 5k to get warmed up these days!).

I actually have that book so will give it a scan when I get home tonight.....

Will be great to see you at the girls night out. And in answer to your hubby - of course you will be able to keep up! The group running thing will do wonders for you and you'll improve in leaps and bounds - trust me ;-)

Anyway - I seem to have taken over your blog here! Please accept my apologies!!!

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