exactly! so genetically you might have smaller bones (women) and be set back on strength.
Your brain also stops you to protect ligaments, which are fucked up a lot more often then bones(at least as far as lifting goes). I don’t think I have ever heard of anyone lifting so much weight it broke their bone/s. Dave Tate has ripped both his pecs off, Kroc has f’d up his quads, Marc Bartley-also ripping quads off, Ronnie Coleman-tore his tricep and/or lats(Dont follow bodybuilding), Mega-Man got his elbow f’d up armwrestling Magnus Samualsson and multitudes of others. Also your bones adapt to stress and get stronger.
the guy in the vid used a hook grip, his thumb was taped/chalked
There is a video of the late great Jon-Pal Sigmarson doing a one arm DL with like 4-6 plates on each side, Maybe more I was too busy shitting myself to count.
[quote]romanaz wrote:
relative strength is a big thing with lighter guys. I saw a guy out in Indianapolis deadlift 275 for triples, on a light workout, while recovering from a nasty headcold, wieghing only 120lbs. Guy probably pulls 3.5 times his bodyweight easily.
For some guys at my gym, I’ve seen a just under 160lb guy back squat ass to grass 182.5kg (401lbs) for a triple, and 440 for a single. There is also a 169lb guy at my club who back squats 400-410 easily regularly.
Or how about that 160lb guy jump to a box about 5 feet 8inchs up, where he was only 5’1 tall. [/quote]
Hanging out with Poliquin lately?
Well i’m just going off what a group of scientist said and plus the reason they don’t break a bone is because there brain stops them like i said and if you seen the discovery channel episode discussed earlier you only use 1/3 of your total strength at what you think is exhaustion. I do agree that ligaments do tear and rip but bones do break.
it is at about 3:45, It looks like 5 plates, but i am not sure, they could be bumper plates, then who knows what the fuck is going on, and the video is a little blurry at that point.
[quote]samson77 wrote:
Well i’m just going off what a group of scientist said and plus the reason they don’t break a bone is because there brain stops them like i said and if you seen the discovery channel episode discussed earlier you only use 1/3 of your total strength at what you think is exhaustion. I do agree that ligaments do tear and rip but bones do break. [/quote]
If scientists told you monkeys shit gold would you believe that too? sorry, that was mean, anyways like i have said, many powerlifters, strongmen, weightlifters and even bodybuilders have torn tendons and muscles while lifting, but I have never heard of one breaking a bone while lifting. The scientist’s just have a theory, and when pushing really hard tendons rip well before bone will(unless its an old lady, maybe, with really bad osteoperosis).
If someone has heard of someone breaking a bone from lifting(exluding where the bar lands on them in an awkward spot, or something stupid like that) please speak up or post a video if you have one/ its on youtube.
The idea that the bone is the limiting factor in voluntary strength, to me at least, means that bone is the weakest link and your body is stopping you from breaking it, which I have never heard of, but I have heard of tendons breaking, hence my disagreement with you.
Edit: It says in the Youtube video that Mega-man broke his arm when he armwrestled Magnus Samuelson, which doesnt mean much considering it is still way more common to have torn ligaments and such than broken bones.
[quote]samson77 wrote:
exactly! so genetically you might have smaller bones (women) and be set back on strength. [/quote]
Actually i was thinking along the lines of ligaments and muscles.
The thing with our body (i might be wrong here) is that saying it all comes down to bone strength (tensile/compressive/whatever you want) is silly. The first thing to break will probably be the ligaments/tendons, then muscle and then some bone breaking. Don’t forget cartilage either.
It probably takes great amount of force directly on or across the bone to break it.
According to this (if i understand correctly):
http://silver.neep.wisc.edu/~lakes/BoneAniso.html
The average human femur has a compressive strength of 205 Mega Pascals which equates to 29 730 pounds per square inch of pressure.
This means from the top (think of squats) you’d need 29 740 pounds per square inch of force to do some damage. However this does not mean your femur bone would necessarily be able to withstand such high forces. Longitudinal strength would probably mean the thing as a whole, meaning there would be no sliding (think of two pieces of paper side by side and pushing one paper down). A bone would probably be more realistically related to shear strength (meaning a part might move in relation to another part ) which is 9 427 pounds per square inch. Also this takes it as an area and not as a volume, in which we’d probably have to figure it out some other way.
From the side it takes on 19 000 pounds per square inch.
Now i might be wrong with these calculations (not really calculations and if im wrong someone correct me) but i think it’s safe to say that:
- The bone itself would probably be the very last thing to actually limit us. I think it would take an insane level of muscular genetic ability and perseverence to go to the point where you break your bone from lifting weight alone.
We can see from the ridiculously high numbers that you won’t break a bone just by lifting heavy weights, even in the thousands.
Remember that people who break bones usually take the brunt of the weight in a single spot (like being hit by a “pointy-ish” bumper from a car). Squatting something like 3000 pounds would probably disperse the weight over the entire body in terms of ligaments, tendons, bone, muscular tissue, counter forces, direction, etc, etc…
I have never personally heard of someone break a bone from lifting a weight that was too heavy (assuming proper form, etc…)
Also, I was watching a thing about crocodiles and they have muscles on their skulls that redirect forces so they can bite harder without breaking their jaw, which is already in the thousands, and we may have the same thing going on, which would just make it harder to break the bones.