# A tendon deformity and "super" strength?

**URL:** <https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636>\
**Category:** Factual Questions\
**Created:** [September 18, 2009, 8:02pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636 "2009-09-18T20:02:44Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![ManiacMan](https://avatars.discourse-cdn.com/v4/letter/m/b782af/32.png) [@ManiacMan](https://boards.straightdope.com/u/ManiacMan)\
**Post date:** [September 18, 2009, 8:02pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/1 "2009-09-18T20:02:44Z")

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A co worker of mine who weighs about 130lbs soaking wet says that he has some sort of tendon deformity that allows him to be extra strong. He insists that he can curl 80lb dumbells with perfect form for example…and that is an incredible amount of weight to curl, and he claims he is a force to be reckoned with in arm wrastle-ing matches.

Is there such a thing as a “tendon deformity” that could contribute to a person’s ability to be stronger than what you might expect?

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**Author:** ![TruCelt](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/trucelt/32/523_2.png) [@TruCelt](https://boards.straightdope.com/u/TruCelt)\
**Post date:** [September 18, 2009, 8:14pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/2 "2009-09-18T20:14:07Z")

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Wasn’t there a movie about this a while back? Something about a little kid pitching in MLB?

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**Author:** ![PlainJain](https://avatars.discourse-cdn.com/v4/letter/p/5daacb/32.png) [@PlainJain](https://boards.straightdope.com/u/PlainJain)\
**Post date:** [September 18, 2009, 8:16pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/3 "2009-09-18T20:16:40Z")

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> [@ManiacMan](#):
>
> A co worker of mine who weighs about 130lbs soaking wet says that he has some sort of tendon deformity that allows him to be extra strong. He insists that he can curl 80lb dumbells with perfect form for example…and that is an incredible amount of weight to curl, and he claims he is a force to be reckoned with in arm wrastle-ing matches.
> 
> Is there such a thing as a “tendon deformity” that could contribute to a person’s ability to be stronger than what you might expect?

The last time someone “claimed” an incredible bench press, I made $20 bucks off the clod. Muscles lift weight not tendons. Personally, I’d want witness these feats before I put too much time in researching tendons.

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**Author:** ![Superhal](https://avatars.discourse-cdn.com/v4/letter/s/b4bc9f/32.png) [@Superhal](https://boards.straightdope.com/u/Superhal)\
**Post date:** [September 18, 2009, 8:28pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/4 "2009-09-18T20:28:10Z")

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That’s what happened to Jimmy Morris.

> **[Jim Morris (disambiguation)](https://en.wikipedia.org/wiki/Jimmy_Morris)**
>
> Jim Morris is a former professional baseball player and subject of the 2002 film The Rookie.
> Jim or Jimmy Morris may also refer to:

Also, major league pitchers tend to gain speed after certain types of tendon surgery, although this is usually attributed to advances in post-surgery rehab.

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**Author:** ![Saint\_Cad](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/saint_cad/32/18907_2.png) [@Saint\_Cad](https://boards.straightdope.com/u/Saint_Cad)\
**Post date:** [September 18, 2009, 8:34pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/5 "2009-09-18T20:34:36Z")

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If the tendon is ties in further up the bone, then the muscle will provide more torque around the joint enabling the muscle to lift more weight. This is why chimpanzees are so much stronger than humans for less muscle mass.

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**Author:** ![h.sapiens](https://avatars.discourse-cdn.com/v4/letter/h/e0b2c6/32.png) [@h.sapiens](https://boards.straightdope.com/u/h.sapiens)\
**Post date:** [September 18, 2009, 8:52pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/6 "2009-09-18T20:52:17Z")

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> [@TruCelt](#):
>
> Wasn’t there a movie about this a while back? Something about a little kid pitching in MLB?

[Rookie of the Year.](http://www.imdb.com/title/tt0107985/) The kid breaks his arm or something, and after the cast is taken off, he finds he can pitch like a major leaguer. I’ts a fantasy, of course.

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**Author:** ![ManiacMan](https://avatars.discourse-cdn.com/v4/letter/m/b782af/32.png) [@ManiacMan](https://boards.straightdope.com/u/ManiacMan)\
**Post date:** [September 18, 2009, 8:53pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/7 "2009-09-18T20:53:34Z")

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> [@Saint\_Cad](#):
>
> If the tendon is ties in further up the bone, then the muscle will provide more torque around the joint enabling the muscle to lift more weight. This is why chimpanzees are so much stronger than humans for less muscle mass.

Hmm

So if I hold my arm out in front of me and poke into the elbow joint I can feel the tendon there that connects to the bone, and what you are saying is that the tendon would actually connect closer up my humerus towards my shoulder?

Is there a medical name/condition for that as it would pertain to a human?

Would a person who has something like this have a shorter arm typically?

How much more weight would one be able to lift with this condition?

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**Author:** ![Shodan](https://avatars.discourse-cdn.com/v4/letter/s/9f8e36/32.png) [@Shodan](https://boards.straightdope.com/u/Shodan)\
**Post date:** [September 18, 2009, 8:56pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/8 "2009-09-18T20:56:40Z")

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> [@Saint\_Cad](#):
>
> If the tendon is ties in further up the bone, then the muscle will provide more torque around the joint enabling the muscle to lift more weight.

This, essentially. It is not really a deformity, just an atypical arrangement.

Arms and their muscles are set up to be [levers of the third class](http://en.wikipedia.org/wiki/Lever). This is because we are evolved as hunter-gatherers to throw things at our prey/enemies. Speed is more important than strength, thus typically the tendon attachments are set up to maximize the speed imparted to the resistance for a given input force.

In terms of natural selection, it is more of an advantage to throw a rock really fast than to curl a lot of weight. That’s why your friend’s biceps strength is unusual.

Regards,  
Shodan

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**Author:** ![Oakminster](https://avatars.discourse-cdn.com/v4/letter/o/77aa72/32.png) [@Oakminster](https://boards.straightdope.com/u/Oakminster)\
**Post date:** [September 18, 2009, 9:03pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/9 "2009-09-18T21:03:29Z")

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It is rumored that former amateur and pro wrestler Danny Hodge has some sort of abnormality with the tendons in his hands/wrists. It is known for certain that the man had, and may still have, incredible strength in his hands. He was able to break pliers merely by squeezing them, and did this routinely while doing publicity for wrestling shows. From all reports, the pliers were not gimmicked in any way.

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**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\
**Post date:** [September 19, 2009, 12:02am UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/10 "2009-09-19T00:02:39Z")

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> [@](#):
>
> He was able to break pliers merely by squeezing them, and did this routinely while doing publicity for wrestling shows. From all reports, the pliers were not gimmicked in any way.

One of my uncles did this once, and he’s not even in a particularly strength-based profession. So if a professional wrestler is reported to be able to crush pliers, I’m inclined to believe it.

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**Author:** ![Toxylon](https://avatars.discourse-cdn.com/v4/letter/t/f05b48/32.png) [@Toxylon](https://boards.straightdope.com/u/Toxylon)\
**Post date:** [September 19, 2009, 11:48am UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/11 "2009-09-19T11:48:10Z")

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Thomas Topham, an 18th century Londoner of superhuman strength is thought to have had a condition where his tendons were attached further up the muscles than normal. Topham’s feats were witnessed and recorded by a certain Dr. Desaguliers, lending credibility where little is usually found. In addition to a variety of quaint, hard-to-quantify country fair tricks Topham would do things like break a 5/8", 2000 lbs. break strength rope by pulling on it and easily lift 220 lbs. overhead with one arm. Topham wasn’t a big guy, 5’10" / 190 lbs., and would look average when clothed but, as one witness described, had ‘armpits and hams full of muscles and tendons’.

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**Author:** ![bouv](https://avatars.discourse-cdn.com/v4/letter/b/bc8723/32.png) [@bouv](https://boards.straightdope.com/u/bouv)\
**Post date:** [September 19, 2009, 5:26pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/12 "2009-09-19T17:26:16Z")

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> [@ManiacMan](#):
>
> Hmm
> 
> So if I hold my arm out in front of me and poke into the elbow joint I can feel the tendon there that connects to the bone, and what you are saying is that the tendon would actually connect closer up my humerus towards my shoulder?

Actually it’d be the other way 'round. For example, the bicep has the origin on the scapula, and it’s insertion is past the elbow on the radius. Point being it goes _past_ the elbow. The further past the elbow it goes, the more leverage it gets to lift a weight, but the longer time it would take to do it.

Here’s some quick, very simplified, math.  
Let’s say you want to curl 80 pounds. The 80 pounds will create a moment about the elbow. Let’s say the forearm is a foot long, for simplicity’s sake. This means we have an 80 foot-pound moment that has to be overcome by the bicep. If the insertion for the bicep is one inch past the elbow, then it has to generate 960 pounds of force to overcome it. If the insertion point is moved to two inches, this drops down to half the amount to 480 pounds.

Like I said, this is very simplified, though. I ignored the weight of the arm, other muscles helping out, etc… but it gets the point across.

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**Author:** ![Markxxx](https://avatars.discourse-cdn.com/v4/letter/m/5daacb/32.png) [@Markxxx](https://boards.straightdope.com/u/Markxxx)\
**Post date:** [September 19, 2009, 6:12pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/13 "2009-09-19T18:12:47Z")

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A “deformed” tendon in this sense doesn’t automatically equal more strength, all it means is that if the guy worked out and progressed eventually he’d be in a position to lift more weight.

You’d still have to do the work to be able to lift the weight.

Think of it like this, part of the reason Michael Phelps is such a good swimmer is simply his body proportions, torso to arms ratio etc, are not the same as the average Joe. By having unusual proportions (and I use unusual as a good thing) he is able to swim better.

But Phelps still had to train. If Micheal Phelps even with this genetic advantage had never trained for the Olympics, and then tried to race an Olympic swimmer, he would’ve gotten beaten easily despite genetic advantage, simply because in addition to genetic, he would still have to do the work.

So the tendon shape allows you to train to lift more wieght, it doesn’t automatically mean you are strong.

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**Author:** ![Superhal](https://avatars.discourse-cdn.com/v4/letter/s/b4bc9f/32.png) [@Superhal](https://boards.straightdope.com/u/Superhal)\
**Post date:** [September 19, 2009, 8:12pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/14 "2009-09-19T20:12:48Z")

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> [@h.sapiens](#):
>
> [Rookie of the Year.](http://www.imdb.com/title/tt0107985/) The kid breaks his arm or something, and after the cast is taken off, he finds he can pitch like a major leaguer. I’ts a fantasy, of course.

Rookie of the Year is fiction, but “[The Rookie](http://en.wikipedia.org/wiki/The_Rookie_%282002_film%29)” is fact.

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**Author:** ![Dignan](https://avatars.discourse-cdn.com/v4/letter/d/f07891/32.png) [@Dignan](https://boards.straightdope.com/u/Dignan)\
**Post date:** [September 19, 2009, 9:44pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/15 "2009-09-19T21:44:19Z")

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Whatever happened to the story about the super strong baby from Germany? I Googled and I can’t find anything since 2004 when the story came out. That had to do with muscle growth other than tendons, but still …

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**Author:** ![astro](https://avatars.discourse-cdn.com/v4/letter/a/9dc877/32.png) [@astro](https://boards.straightdope.com/u/astro)\
**Post date:** [September 20, 2009, 1:22am UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/16 "2009-09-20T01:22:14Z")

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People (who are reasonably well built) and who have unusually short arms can perform exceptional feats of strength with respect to curling and pressing. [Paul Anderson](http://en.wikipedia.org/wiki/Paul_Edward_Anderson)was noted of this.

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**Author:** ![bouv](https://avatars.discourse-cdn.com/v4/letter/b/bc8723/32.png) [@bouv](https://boards.straightdope.com/u/bouv)\
**Post date:** [September 20, 2009, 5:23am UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/17 "2009-09-20T05:23:41Z")

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> [@Dignan](#):
>
> Whatever happened to the story about the super strong baby from Germany? I Googled and I can’t find anything since 2004 when the story came out. That had to do with muscle growth other than tendons, but still …

I remember who you’re referring to and I googled but just got random stuff that wasn’t what I was looking for. But at any rate, I did watch a TV special on him, as well as a TV special on another “world’s strongest toddler,” and both of them have weird genetic mutations.

There’s a protein called myostatin that is made in the muscle cells, which itself limits muscle growth. IIRC, the first boy (the Germain one) had muscles that didn’t respond to myostatin. The second boy, the more recent one, just didn’t make myostatin. But the result is the same for both, increased muscle mass because their muscles never got a signal to stop growing.

[Here’s a cow with a similar defect,](http://www.pathguy.com/lectures/myostatin_deficient_cow.jpg) [and a dog.](http://2.bp.blogspot.com/_TUHacRp01_E/SROhCi920SI/AAAAAAAAAHc/07IEfv2WWiw/s320/wendy1.jpg)

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**Author:** ![Spectre\_of\_Pithecanthropus](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/spectre_of_pithecanthropus/32/12343_2.png) [@Spectre\_of\_Pithecanthropus](https://boards.straightdope.com/u/Spectre_of_Pithecanthropus)\
**Post date:** [September 20, 2009, 5:58am UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/18 "2009-09-20T05:58:27Z")

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> [@Markxxx](#):
>
> A “deformed” tendon in this sense doesn’t automatically equal more strength, all it means is that if the guy worked out and progressed eventually he’d be in a position to lift more weight.
> 
> .

Well, not entirely. Much of physical strength is a gift, that is, inborn and not made. Some of these people simply start out stronger than the vast majority of their peers, and can do things the average person will never attain no matter how hard they try.

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**Author:** ![engineer\_comp\_geek](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/engineer_comp_geek/32/504_2.png) [@engineer\_comp\_geek](https://boards.straightdope.com/u/engineer_comp_geek)\
**Post date:** [September 20, 2009, 4:46pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/19 "2009-09-20T16:46:11Z")

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> [@Saint\_Cad](#):
>
> If the tendon is ties in further up the bone, then the muscle will provide more torque around the joint enabling the muscle to lift more weight. This is why chimpanzees are so much stronger than humans for less muscle mass.

That’s only one of the reasons. When they compared chimp and human DNA, they found that all humans have a defect in one of the genes that regulates muscle growth. For those of us who don’t have a genetic defect like super baby, this makes us a lot weaker than chimps. So not only do chimp muscles have better leverage, but pound for pound their muscles are stronger than ours.

Don’t ever wrestle a chimp.

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**Author:** ![astro](https://avatars.discourse-cdn.com/v4/letter/a/9dc877/32.png) [@astro](https://boards.straightdope.com/u/astro)\
**Post date:** [September 20, 2009, 5:51pm UTC](https://boards.straightdope.com/t/a-tendon-deformity-and-super-strength/510636/20 "2009-09-20T17:51:13Z")

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> [@engineer\_comp\_geek](#):
>
> That’s only one of the reasons. When they compared chimp and human DNA, they found that all humans have a defect in one of the genes that regulates muscle growth. For those of us who don’t have a genetic defect like super baby, this makes us a lot weaker than chimps. So not only do chimp muscles have better leverage, but pound for pound their muscles are stronger than ours.
> 
> Don’t ever wrestle a chimp.

You do have to wonder why being “weaker” would be an evolutionary advantage. [This post re](http://www.abovetopsecret.com/forum/thread116459/pg1)a family that is myostatin deficient shows it’s downside.

> [@](#):
>
> G’day.  
> Not really adding much to the conversation, but my father and I both have the “superbaby” mutation. severe myostatin deficiency. My father’s bones are near unbreakable and he became locally famous after lifting a minivan. His strength is comparable to between 3 and 5 normal men and his strength peaked at about the age of 40. His brother Joseph is suspected of having the mutation as well.  
> Our muscles grow at incredible rates, but dont grow much larger. The muscle fibre packs tightly- so tightly in fact that they tear under their own strength, causing us to suddenly collapse for no apparrent reason with massive muscle tears. We have body fat of \>1% and abnormal muscle definition.
> 
> You talk of this german baby as if he is the strongest of us.my father once jokingly held a washing machine in his outstretched arm, obviously considerably more than this 10 lb from the 4 yr old.
> 
> I don’t know what we are really capable of, but I can tell you from experience that myostatin deficiency is not always a benefit. The constant pain from muscle growth and the inevitable tears that follow are horrendous and it is suspected that the huge muscle mass presses on our blood vessels, forcing blood pressure up and making our hearts less effective

.
