Me deadlifting 635 lbs x 2 reps

[Van_Bilderass]

Richard2004,

The critical factors are:
-thigh bone to torso length ratio (which decides how "optimum" your starting position is)
-ankle flexibility (same as above)
-shin length to thigh bone length ratio (which is a measure of stunting/cold-adaption)

...these factors expalin the pattern you are seeing. Glad someone else noticed it.

Those who can/do deadlift with a rounded UPPER back generally suffer no noticeable ill affects... no NOTICEABLE effects because the damage takes longer to present itself as a debilitating condition.

Rounded lower back = back problems in 40s/50s
Rounded upper back = back problems in 50s/60s
Flat back = no difference from non-lifters
Arched back = robust lumbar health well into 70s/80s

I have formulas for working out predictive trends from almost all the body ratios... from finger length ratios to ankle and wrist ratios (surprisingly finger length ratios can best predict bodybuilding aptitude/potential). I really must get around to writing a How-To guide or an article or something. 

The Luke

Do you have some type of medical background?

Some powerlifters even do deliberately rounded back good mornings, and some type of upper back rolls where you sit with a barbell on your back and round your upper back and then crunch back into arched position. Probably not healthy either, even with moderate weights?

[Weez]

Very good lift. I round my back slightly as well when I DL heavy. I think that your body gets accustomed to the way that you lift. I never have had any back pain.

[Hedgehog]

mason, keep up the excellent lifting.

Stay strong bro.

-Hedge

[chris_mason]

Thanks!

[body88]

Chris, nice lift. You are strong as hell......

[davie]

Freaky strong bro, im looking foreward to the next installment with u deadlifting 675 for at least 3!!

Awesome strength, u going down the mainly powerlifting route now??

davie

[beatmaster]

Very good lift chris, impressive weight....

[deadlift]

Outstanding lift, especially at your bodyweight. Inspiring...

[Lord Humungous]

HAHAHAH Chris just owned the haters!!!   

[Palpatine Q]

Richard2004,

The critical factors are:
-thigh bone to torso length ratio (which decides how "optimum" your starting position is)
-ankle flexibility (same as above)
-shin length to thigh bone length ratio (which is a measure of stunting/cold-adaption)

...these factors expalin the pattern you are seeing. Glad someone else noticed it.

Those who can/do deadlift with a rounded UPPER back generally suffer no noticeable ill affects... no NOTICEABLE effects because the damage takes longer to present itself as a debilitating condition.

Rounded lower back = back problems in 40s/50s
Rounded upper back = back problems in 50s/60s
Flat back = no difference from non-lifters
Arched back = robust lumbar health well into 70s/80s

I have formulas for working out predictive trends from almost all the body ratios... from finger length ratios to ankle and wrist ratios (surprisingly finger length ratios can best predict bodybuilding aptitude/potential). I really must get around to writing a How-To guide or an article or something. 

The Luke

I don't know what all that means, but I can say I make a conscious effort to ALWAYS arch my back when lifting heavy shit (in the gym or out) and I'm one of the few people i know my age that has zero back problems

[The Luke]

I don't know what all that means, but I can say I make a conscious effort to ALWAYS arch my back when lifting heavy shit (in the gym or out) and I'm one of the few people i know my age that has zero back problems

...well now you know why.

The Luke