blueollie

Overdoing it

Workout notes So far, 2500 yard swim (way slow), 3 miles plus of easy walking. I am trying to protect my left lower hamstring (again).

My problems: no sign of trouble, until yesterday when I ran 5 miles (more intensity than usual, for me), did yoga (and the dreaded reclinging hero pose),

then walked 5 hilly miles (middle 4 miles with a bit of intensity). Still, nothing, but when I was getting ready to bike (just putting on my shoes) I felt something like a cramp “back there” (behind the knee, lower hamstring insertion into the calf).

Bottom line: hero pose isn’t for me when I am doing any running or intense walking at all, and I really need EASY days between intense days, and I can’t have more than 1-2 intense days a week if I am in the 50 plus miles a week range (mixing running and walking). Live and learn. :)

More stuff

I mentioned Damon Lease, a friend who finished the Vermont 100 in 26 hours. There is an article about him here.

Good (and free) stuff on the web: go here; hat tip to Blackinformant.

Anthropology.net: genetic drift and natrual selection: which is more responsible for the difference between Neandertal’s and modern humans? (if either?)

First, a refresher for these terms:

t is an interesting question to ask because if you’ve ever spent some time looking at a Neandertal skull and compared it to a modern human’s skull, you probably asked yourself, why the hell are most features in the Neandertal skull so robust? What made it that way? And, if you haven’t had the pleasure of holding and comparing these two heads, no worries…

Click to the website to see an interesting photo which compares the skulls then:

But you maybe asking yourself what is the difference between genetic drift and natural selection? I sometimes confuse the definitions, so forgive me if I’m being redundant by sharing with you some common evolutionary theory.

Genetic drift, in the most basic definition is just the probability an allele shows up in a population. The effect of the drift may cause an allele and the biological trait that it confers to become more common or more rare over successive generations. Ultimately, the drift may either remove the allele from the gene pool or remove all other alleles. So that being said, genetic drift is the fundamental tendency of any allele to vary randomly in frequency over time due to statistical variation alone.

It differs from natural selection, because natural selection in the most basic definition is when beneficial alleles become more common over time because they boost the survivability of the organisms and reciprocally detrimental alleles become less common.

But genetic drift and natural selection aren’t mutually exclusive. In other words, both forces are always at play in a population. However, the degree to which alleles are affected by drift and selection varies according to circumstances such as population size. In a large population, where genetic drift occurs very slowly, a weak selection on an allele will push its frequency upwards or downwards (depending on whether the allele is beneficial or harmful). However, if the population is very small, drift will predominate. In this case, weak selective effects may not be seen at all as the small changes in frequency they would produce are overshadowed by drift. [...]

Finish the article; it is very interesting. It goes on to discuss cultural roles:

I feel that culture has been a large determining factor in deciding whether or not modern humans had more gracile skulls than robust ones. Take a second and ask yourself how our modern day popular culture is selecting for bodies?

So if I’m right, and culture has a big role, then I don’t know of any statistical method that could discern the effect of culture on traits in the skull. [...]

Just facinating!

De-conversion: someone doesn’t think highly of theology. :)

For me, theology can be an interesting exercise in pure logic (if you assume postulates X, Y, Z, then what do you get), but not much more than that.

Godisforsuckers: presents an interesting coincidence (nothing to do with religion). Bascially, a lady had her purse and credit cards stolen and went to the store to contest some fradulent charges. But the guy who stole her purse and credit cards was in line right ahead of her, attempting to exchange some of the CDs he bought with her credit card for cash!

O’Lielly, er O’Rielly: attempts to tell Democratic candidates to skip the Yearly Kos.

Redstate update on CNN!!!!

Sri Lanka’s Buddist monks who are armed! From Al Jazeera

Inside Iraq From Al Jazeera

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July 25, 2007 - Posted by | injury, politics/social, religion, science, swimming, walking, yoga

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