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interests / sci.anthropology.paleo / Re: Exercise/physical activity improve bone density

SubjectAuthor
* Exercise/physical activity improve bone densityPrimum Sapienti
+* Re: Exercise/physical activity improve bone densitylittor...@gmail.com
|`* Re: Exercise/physical activity improve bone densityPrimum Sapienti
| `* Re: Exercise/physical activity improve bone densityI Envy JTEM
|  +* Re: Exercise/physical activity improve bone densityPrimum Sapienti
|  |`* Re: Exercise/physical activity improve bone densityI Envy JTEM
|  | +* Re: Exercise/physical activity improve bone densityPrimum Sapienti
|  | |`* Re: Exercise/physical activity improve bone densityI Envy JTEM
|  | | `- Re: Exercise/physical activity improve bone densitylittor...@gmail.com
|  | `* Re: Exercise/physical activity improve bone densityPrimum Sapienti
|  |  `* Re: Exercise/physical activity improve bone densityI Envy JTEM
|  |   `- Re: Exercise/physical activity improve bone densityDD'eDeN aka note/nickname/alas_my_loves
|  `- Re: Exercise/physical activity improve bone densityDD'eDeN aka note/nickname/alas_my_loves
+* Re: Exercise/physical activity improve bone densityDD'eDeN aka note/nickname/alas_my_loves
|+* Re: Exercise/physical activity improve bone densitylittor...@gmail.com
||`* Re: Exercise/physical activity improve bone densityDD'eDeN aka note/nickname/alas_my_loves
|| +- Re: Exercise/physical activity improve bone densityDD'eDeN aka note/nickname/alas_my_loves
|| `- Re: Exercise/physical activity improve bone densityPrimum Sapienti
|`* Re: Exercise/physical activity improve bone densityPrimum Sapienti
| `- Re: Exercise/physical activity improve bone densitylittor...@gmail.com
+* Re: Exercise/physical activity improve bone densityI Envy JTEM
|`* Re: Exercise/physical activity improve bone densityPrimum Sapienti
| +* Re: Exercise/physical activity improve bone densityI Envy JTEM
| |`* Re: Exercise/physical activity improve bone densityPrimum Sapienti
| | `* Re: Exercise/physical activity improve bone densityI Envy JTEM
| |  +- Re: Exercise/physical activity improve bone densityPrimum Sapienti
| |  `* Re: Exercise/physical activity improve bone densityPrimum Sapienti
| |   `* Re: Exercise/physical activity improve bone densitylittor...@gmail.com
| |    `* Re: Exercise/physical activity improve bone densitylittor...@gmail.com
| |     `* Re: Exercise/physical activity improve bone densityDD'eDeN aka note/nickname/alas_my_loves
| |      `* Re: Exercise/physical activity improve bone densitylittor...@gmail.com
| |       `- Re: Exercise/physical activity improve bone densityDD'eDeN aka note/nickname/alas_my_loves
| `- Re: Exercise/physical activity improve bone densityDD'eDeN aka note/nickname/alas_my_loves
`- Re: Exercise/physical activity improve bone densityDD'eDeN aka note/nickname/alas_my_loves

Pages:12
Exercise/physical activity improve bone density

<t402uh$ahk$2@dont-email.me>

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From: inval...@invalid.invalid (Primum Sapienti)
Newsgroups: sci.anthropology.paleo
Subject: Exercise/physical activity improve bone density
Date: Fri, 22 Apr 2022 23:31:00 -0600
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 by: Primum Sapienti - Sat, 23 Apr 2022 05:31 UTC

https://orthoinfo.aaos.org/en/staying-healthy/exercise-and-bone-health/

"Exercise works on bones much like it works on muscles — it makes them
stronger. Exercise is important for building strong bones when we are
younger, and it is essential for maintaining bone strength when we are older.
Because bone is living tissue, it changes over time in response to the forces
placed upon it. When you exercise regularly, your bone adapts by building
more bone and becoming denser."

"Higher impact activities, such as jogging and jumping rope, increase the
weight on bones and provide more bone-strengthening benefits."

Re: Exercise/physical activity improve bone density

<42bf4989-cc88-4f5f-ad8e-996ad5a156c2n@googlegroups.com>

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Subject: Re: Exercise/physical activity improve bone density
From: littoral...@gmail.com (littor...@gmail.com)
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 by: littor...@gmail.com - Sat, 23 Apr 2022 07:56 UTC

> https://orthoinfo.aaos.org/en/staying-healthy/exercise-and-bone-health/
> "Exercise works on bones much like it works on muscles — it makes them
> stronger.

Interesting study, but irrelevant as to why H.erectus & partially neandertals still were pachy-osteo-sclerotic. POS or pachyosteosclerosis (extremely thick & heavy skeletons, possibly more brittle due to an excess of calcium) in tetrapods is exclusively seen in slow & shallow divers, incl. all aquatic mammals initially: early Cetacea & pinnipeds had POS, and Sirenia still have POS. Google "coastal dispersal Pleistocene Homo PPT" (+ refs).

Only incredible idiots believe normal strong bones in Hs are comparable to Hn or He POS.

Re: Exercise/physical activity improve bone density

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Subject: Re: Exercise/physical activity improve bone density
From: daud.de...@gmail.com (DD'eDeN aka note/nickname/alas_my_loves)
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 by: DD'eDeN aka not - Sat, 23 Apr 2022 17:35 UTC

On Saturday, April 23, 2022 at 1:30:59 AM UTC-4, Primum Sapienti wrote:
> https://orthoinfo.aaos.org/en/staying-healthy/exercise-and-bone-health/
>
> "Exercise works on bones much like it works on muscles — it makes them
> stronger. Exercise is important for building strong bones when we are
> younger, and it is essential for maintaining bone strength when we are older.
> Because bone is living tissue, it changes over time in response to the forces
> placed upon it. When you exercise regularly, your bone adapts by building
> more bone and becoming denser."
>
> "Higher impact activities, such as jogging and jumping rope, increase the
> weight on bones and provide more bone-strengthening benefits."
Yup. Central West Africans have the highest bone density of AMHs.

Re: Exercise/physical activity improve bone density

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Subject: Re: Exercise/physical activity improve bone density
From: jte...@gmail.com (I Envy JTEM)
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 by: I Envy JTEM - Sat, 23 Apr 2022 18:15 UTC

Primum Sapienti wrote:

> https://orthoinfo.aaos.org/en/staying-healthy/exercise-and-bone-health/
>
> "Exercise works on bones much like it works on muscles

This has always been known, and introduced here numerous times.

It's one of the huge issues with "Gracile" THIS and "Robust" THAT: Without
complete skeletons & a representative sampling of a population we can't
really tell these things. Could be the exact same species just a different
environment, diet & lifestyle.

Again, introduced here many times. *I* have brought it up myself. But, I am
CURSED with reading comprehension & retention...

-- --

https://jtem.tumblr.com/post/682192196226760704

Re: Exercise/physical activity improve bone density

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Subject: Re: Exercise/physical activity improve bone density
From: littoral...@gmail.com (littor...@gmail.com)
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 by: littor...@gmail.com - Sat, 23 Apr 2022 20:41 UTC

> > "Higher impact activities, such as jogging and jumping rope, increase the
> > weight on bones and provide more bone-strengthening benefits."

> Yup. Central West Africans have the highest bone density of AMHs.

Yup. Nobody doubts that, my little boy:
only incredible idiots deny this is irrelevant to the pachyosteosclerosis seen in all aquatics *initially*:
H.erectus, Cetacea, pinnipeds, (still) Sirenia & many other tetrapods adaptating to diving in salt water.

Re: Exercise/physical activity improve bone density

<t42jbi$3n0$5@dont-email.me>

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From: inval...@invalid.invalid (Primum Sapienti)
Newsgroups: sci.anthropology.paleo
Subject: Re: Exercise/physical activity improve bone density
Date: Sat, 23 Apr 2022 22:23:18 -0600
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 by: Primum Sapienti - Sun, 24 Apr 2022 04:23 UTC

DD'eDeN aka note/nickname/alas_my_loves wrote:
> On Saturday, April 23, 2022 at 1:30:59 AM UTC-4, Primum Sapienti wrote:
>> https://orthoinfo.aaos.org/en/staying-healthy/exercise-and-bone-health/
>>
>> "Exercise works on bones much like it works on muscles — it makes them
>> stronger. Exercise is important for building strong bones when we are
>> younger, and it is essential for maintaining bone strength when we are older.
>> Because bone is living tissue, it changes over time in response to the forces
>> placed upon it. When you exercise regularly, your bone adapts by building
>> more bone and becoming denser."
>>
>> "Higher impact activities, such as jogging and jumping rope, increase the
>> weight on bones and provide more bone-strengthening benefits."
> Yup. Central West Africans have the highest bone density of AMHs.
>

https://academic.oup.com/jcem/article/82/2/429/2823249
Racial Differences in Bone Density between Young Adult Black and White
Subjects Persist after Adjustment for Anthropometric, Lifestyle, and
Biochemical Differences

https://pubmed.ncbi.nlm.nih.gov/12107201/
Ethnic variation in bone density in premenopausal and early perimenopausal
women: effects of anthropometric and lifestyle factors

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4362392/
Ethnic Differences in Bone Health

Re: Exercise/physical activity improve bone density

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Subject: Re: Exercise/physical activity improve bone density
From: littoral...@gmail.com (littor...@gmail.com)
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 by: littor...@gmail.com - Sun, 24 Apr 2022 15:11 UTC

Some imbeciles apparently don't get the difference between
- strong bones as in H.sapiens (Blacks>Whites) & +-all mammals,
- pachyosteosclerosis in H.erectus = systematically & exclusively seen in slow+shallow-diving tetrapods.
Only incredible imbeciles still believe their ancestors ran after antelopes.

Re: Exercise/physical activity improve bone density

<t5fds7$jjl$4@dont-email.me>

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From: inval...@invalid.invalid (Primum Sapienti)
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Subject: Re: Exercise/physical activity improve bone density
Date: Tue, 10 May 2022 22:25:45 -0600
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 by: Primum Sapienti - Wed, 11 May 2022 04:25 UTC

littor...@gmail.com wrote:
>
>> https://orthoinfo.aaos.org/en/staying-healthy/exercise-and-bone-health/
>> "Exercise works on bones much like it works on muscles — it makes them
>> stronger.
>
> Interesting study, but irrelevant as to why H.erectus & partially neandertals still were pachy-osteo-sclerotic. POS or pachyosteosclerosis (extremely thick & heavy skeletons, possibly more brittle due to an excess of calcium) in tetrapods is exclusively seen in slow & shallow divers, incl. all aquatic mammals initially: early Cetacea & pinnipeds had POS, and Sirenia still have POS. Google "coastal dispersal Pleistocene Homo PPT" (+ refs).
>
> Only incredible idiots believe normal strong bones in Hs are comparable to Hn or He POS.
>
Diving not needed.

Re: Exercise/physical activity improve bone density

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From: inval...@invalid.invalid (Primum Sapienti)
Newsgroups: sci.anthropology.paleo
Subject: Re: Exercise/physical activity improve bone density
Date: Tue, 10 May 2022 22:31:36 -0600
Organization: sum
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 by: Primum Sapienti - Wed, 11 May 2022 04:31 UTC

I Envy JTEM wrote:
> Primum Sapienti wrote:
>
>> https://orthoinfo.aaos.org/en/staying-healthy/exercise-and-bone-health/
>>
>> "Exercise works on bones much like it works on muscles
>
> This has always been known, and introduced here numerous times.

Diving not needed.

> It's one of the huge issues with "Gracile" THIS and "Robust" THAT: Without
> complete skeletons & a representative sampling of a population we can't
> really tell these things. Could be the exact same species just a different
> environment, diet & lifestyle.
>
> Again, introduced here many times. *I* have brought it up myself. But, I am
> CURSED with reading comprehension & retention...

Re: Exercise/physical activity improve bone density

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Subject: Re: Exercise/physical activity improve bone density
From: jte...@gmail.com (I Envy JTEM)
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 by: I Envy JTEM - Wed, 11 May 2022 14:12 UTC

Primum Sapienti wrote:

> Diving not needed.

Speech isn't needed. No other species has a language. Mathematics isn't
needed. Goats, bears & chimps don't carry calculators or scribble
equations in the dirt. We don't need these things. And the fact that we
don't need them, we never "Needed" to evolve them is entirely irrelevant
because, goddamnit, we did develop them. We didn't need to but we
did.

So once again you reached up your butt and pulled out another one
of your "Gems" to share...

Ain't gonna thank you, missy.

-- --

https://jtem.tumblr.com/post/683605167873146880

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Subject: Re: Exercise/physical activity improve bone density
From: jte...@gmail.com (I Envy JTEM)
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 by: I Envy JTEM - Wed, 11 May 2022 14:13 UTC

Primum Sapienti wrote:

> Diving not needed.

Meaning, what? Mushrooms don't dive so we don't need to?

What do you think you're saying here? Not that I believe you
capable of fully articulating an idea but, well, I have to
admit it would be fun to watch you try.

-- --

https://jtem.tumblr.com/post/683605167873146880

Re: Exercise/physical activity improve bone density

<t6f8m5$1b6fm$2@news.mixmin.net>

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From: inva...@invalid.invalid (Primum Sapienti)
Newsgroups: sci.anthropology.paleo
Subject: Re: Exercise/physical activity improve bone density
Date: Mon, 23 May 2022 00:13:24 -0600
Organization: sum
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 by: Primum Sapienti - Mon, 23 May 2022 06:13 UTC

I Envy JTEM wrote:
> Primum Sapienti wrote:
>
>> Diving not needed.
>
> Speech isn't needed. No other species has a language. Mathematics isn't

non sequitur

> needed. Goats, bears & chimps don't carry calculators or scribble
> equations in the dirt. We don't need these things. And the fact that we
> don't need them, we never "Needed" to evolve them is entirely irrelevant
> because, goddamnit, we did develop them. We didn't need to but we
> did.
>
> So once again you reached up your butt and pulled out another one
> of your "Gems" to share...
>
> Ain't gonna thank you, missy.

Re: Exercise/physical activity improve bone density

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From: inva...@invalid.invalid (Primum Sapienti)
Newsgroups: sci.anthropology.paleo
Subject: Re: Exercise/physical activity improve bone density
Date: Mon, 23 May 2022 00:13:53 -0600
Organization: sum
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 by: Primum Sapienti - Mon, 23 May 2022 06:13 UTC

I Envy JTEM wrote:
> Primum Sapienti wrote:
>
>> Diving not needed.
>
> Meaning, what? Mushrooms don't dive so we don't need to?

Ask mv and the aa crwod

> What do you think you're saying here? Not that I believe you
> capable of fully articulating an idea but, well, I have to
> admit it would be fun to watch you try.

Re: Exercise/physical activity improve bone density

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Subject: Re: Exercise/physical activity improve bone density
From: jte...@gmail.com (I Envy JTEM)
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 by: I Envy JTEM - Tue, 24 May 2022 01:33 UTC

Primum Sapienti wrote:

> non sequitur

That is EXACTLY what I was pointing out about your <ahem> "argument."

-- --

https://jtem.tumblr.com/post/684832909622951936

Re: Exercise/physical activity improve bone density

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Subject: Re: Exercise/physical activity improve bone density
From: jte...@gmail.com (I Envy JTEM)
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 by: I Envy JTEM - Tue, 24 May 2022 01:35 UTC

Primum Sapienti wrote:

> I Envy JTEM wrote:
> > Meaning, what? Mushrooms don't dive so we don't need to?

> Ask mv and the aa crwod

You don't know what your so called "argument" is? You can't explain what
you think you mean?

-- --

https://jtem.tumblr.com/post/684832909622951936

Re: Exercise/physical activity improve bone density

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Subject: Re: Exercise/physical activity improve bone density
From: daud.de...@gmail.com (DD'eDeN aka note/nickname/alas_my_loves)
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 by: DD'eDeN aka not - Sat, 28 May 2022 10:04 UTC

On Saturday, April 23, 2022 at 1:30:59 AM UTC-4, Primum Sapienti wrote:
> https://orthoinfo.aaos.org/en/staying-healthy/exercise-and-bone-health/
>
> "Exercise works on bones much like it works on muscles — it makes them
> stronger. Exercise is important for building strong bones when we are
> younger, and it is essential for maintaining bone strength when we are older.
> Because bone is living tissue, it changes over time in response to the forces
> placed upon it. When you exercise regularly, your bone adapts by building
> more bone and becoming denser."
>
> "Higher impact activities, such as jogging and jumping rope, increase the
> weight on bones and provide more bone-strengthening benefits."
-

Boxers and karate students hit bags over years with the result of thicker cortical bone; there hands don’t get bigger, though. The same is true of the bones in you legs; they don’t get longer if you walk a lot..

The result in the jaw is similar, but not as significant. You are probably referring to the masseter muscle, the knot on each side of your jaw when you clench. Notice it is like a rock; it’s this way in everyone, since it is the most toned muscle in the body due to constant use. Making it bigger would be difficult.

Body builders may be able to, but this has to do with clenching while lifting weights for a minimum of 4 hours daily; many have to wear a mouth guard to protect their teeth, which by the way can increase their lifting ability by about 12%. Gum chewing is not in this class.

(Interesting correlation, gum chewing = ultra-thin meat slices chewing before the era of domestic cooking = smaller but stronger jaws = smaller but thicker teeth ?=? chin development in some hylobatids, Hs, some elephantids..)

Re: Exercise/physical activity improve bone density

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From: daud.de...@gmail.com (DD'eDeN aka note/nickname/alas_my_loves)
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 by: DD'eDeN aka not - Sat, 28 May 2022 10:12 UTC

On Saturday, April 23, 2022 at 4:41:58 PM UTC-4, littor...@gmail.com wrote:
> > > "Higher impact activities, such as jogging and jumping rope, increase the
> > > weight on bones and provide more bone-strengthening benefits."
>
> > Yup. Central West Africans have the highest bone density of AMHs.
> Yup. Nobody doubts that, my little boy:
> only incredible idiots deny this is irrelevant to the pachyosteosclerosis seen in all aquatics *initially*:
> H.erectus, Cetacea, pinnipeds, (still) Sirenia & many other tetrapods adaptating to diving in salt water.

Hs thick femur = muscular stress on femurs, upright terrestrial bipedal carrying (infants, tools, shelters)
He thick femur = mermaids sleeping like manatees!!!
:D

Re: Exercise/physical activity improve bone density

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Subject: Re: Exercise/physical activity improve bone density
From: daud.de...@gmail.com (DD'eDeN aka note/nickname/alas_my_loves)
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 by: DD'eDeN aka not - Sat, 28 May 2022 10:15 UTC

On Wednesday, May 11, 2022 at 10:12:10 AM UTC-4, I Envy JTEM wrote:
> Primum Sapienti wrote:
>
> > Diving not needed.
>
> Speech isn't needed. No other species has a language. Mathematics isn't
> needed. Goats, bears & chimps don't carry calculators or scribble
> equations in the dirt. We don't need these things. And the fact that we
> don't need them, we never "Needed" to evolve them is entirely irrelevant
> because, goddamnit, we did develop them. We didn't need to but we
> did.
>
> So once again you reached up your butt and pulled out another one
> of your "Gems" to share...
>
> Ain't gonna thank you, missy.
>
>
>
>
>
>
> -- --
>
> https://jtem.tumblr.com/post/683605167873146880

Creationism & coastalism & cod liver oil. Everything else is rwong rworng rwong!

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Subject: Re: Exercise/physical activity improve bone density
From: daud.de...@gmail.com (DD'eDeN aka note/nickname/alas_my_loves)
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 by: DD'eDeN aka not - Sat, 28 May 2022 10:47 UTC

On Saturday, May 28, 2022 at 6:12:50 AM UTC-4, DD'eDeN aka note/nickname/alas_my_loves wrote:
> On Saturday, April 23, 2022 at 4:41:58 PM UTC-4, littor...@gmail.com wrote:
> > > > "Higher impact activities, such as jogging and jumping rope, increase the
> > > > weight on bones and provide more bone-strengthening benefits."
> >
> > > Yup. Central West Africans have the highest bone density of AMHs.
> > Yup. Nobody doubts that, my little boy:
> > only incredible idiots deny this is irrelevant to the pachyosteosclerosis seen in all aquatics *initially*:
> > H.erectus, Cetacea, pinnipeds, (still) Sirenia & many other tetrapods adaptating to diving in salt water.
> Hs thick femur = muscular stress on femurs, upright terrestrial bipedal carrying (infants, tools, shelters)
> He thick femur = mermaids sleeping like manatees!!!
> :D

Toggle navigationGroups.io
Messages adaptations for BP walking
adaptations for BP walking
Marc VerhaegenMay 27
Adaptations for bipedal walking:
Musculoskeletal structure and three-dimensional joint mechanics of humans and bipedal chimpanzees (Pan troglodytes)
Matthew C O'Neill, Brigitte Demes, Nathan E Thompson & Brian R Umberger 2022
J.hum.Evol.168:103195 doi 10.1016/j.jhevol.2022.103195

Hs are unique among apes & other primates in the musculo-skeletal design of their lower back, pelvis & lower limbs.
Here, we describe the 3D ground reaction forces & lower/hindlimb joint mechanics of human & BP chimps walking over a full stride:
1) is the estimated limb joint work & power during the stance phase (esp. the single-support period) lower in Hs than BP chimps?
2) is the limb joint work & power required for limb swing lower in Hs than in BP chimps?
3) is the estimated total mechanical power during walking, accounting for the storage of passive elastic strain energy in Hs, lower in Hs than in BP chimp?
Hs & BP chimps were compared at matched dimensionless & dimensional velocities.

Our results:
Hs walk with significantly less work & power output in the 1st double-support period & the single-support period of stance,
but Hs markedly exceed chimps in the 2nd double-support period (push-off).
Hs generate less work & power in limb swing, although the species difference in limb swing power was not statistically significant.
We estimated:
total mechanical positive ‘muscle fiber’ work & power were 46.9 & 35.8 % lower resp. in Hs than in BP chimps at matched dimensionless speeds,
this is due in part to mechanisms for the storage & release of elastic energy at the ankle & hip in Hs.
These results
- indicate distinct ‘heel strike’ & ‘lateral balance’ mechanics in Hs & BP chimps,
- suggest a greater dissipation of mechanical energy through soft tissue deformations in Hs.
Together, our results document important differences between Hs & BP chimp walking mechanics over a full stride,
this permits a more comprehensive understanding of the mechanics & energetics of chimp BPism & the evolution of hominin walking.

MV: Ah?

Yes, our little mermaid sees the truth now. Walking under load produced muscular stress on the femur and occipital ligaments resulting in thicker denser associated bones, unlike arboreal chimps. Not so hard to fathom.

Re: Exercise/physical activity improve bone density

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Subject: Re: Exercise/physical activity improve bone density
From: daud.de...@gmail.com (DD'eDeN aka note/nickname/alas_my_loves)
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 by: DD'eDeN aka not - Sun, 29 May 2022 00:37 UTC

On Saturday, May 28, 2022 at 7:35:29 AM UTC-4, littor...@gmail.com wrote:
> > Diving not needed.
>
> Only incredible imbeciles beleve H.erectus evolved pachyosteosclerotic occipita but paranasal sinuses to prevent blows on the head.

Dense occiput (early Homo) & front sinuses (later Homo) better balanced humans walking upright while carrying a variety of items. This does not exclude advantageous selection via foraging in water or land.

Re: Exercise/physical activity improve bone density

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From: inval...@invalid.invalid (Primum Sapienti)
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Subject: Re: Exercise/physical activity improve bone density
Date: Mon, 30 May 2022 22:47:55 -0600
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 by: Primum Sapienti - Tue, 31 May 2022 04:47 UTC

I Envy JTEM wrote:
> Primum Sapienti wrote:
>
>> non sequitur
>
> That is EXACTLY what I was pointing out about your <ahem> "argument."

I Envy JTEM wrote:
> Primum Sapienti wrote:
>
>> Diving not needed.
>
> Speech isn't needed. No other species has a language. Mathematics isn't

non sequitur

Re: Exercise/physical activity improve bone density

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From: inval...@invalid.invalid (Primum Sapienti)
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Subject: Re: Exercise/physical activity improve bone density
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 by: Primum Sapienti - Tue, 31 May 2022 04:49 UTC

DD'eDeN aka note/nickname/alas_my_loves wrote:
> On Saturday, April 23, 2022 at 4:41:58 PM UTC-4, littor...@gmail.com wrote:
>>>> "Higher impact activities, such as jogging and jumping rope, increase the
>>>> weight on bones and provide more bone-strengthening benefits."
>>
>>> Yup. Central West Africans have the highest bone density of AMHs.
>> Yup. Nobody doubts that, my little boy:
>> only incredible idiots deny this is irrelevant to the pachyosteosclerosis seen in all aquatics *initially*:
>> H.erectus, Cetacea, pinnipeds, (still) Sirenia & many other tetrapods adaptating to diving in salt water.
>
> Hs thick femur = muscular stress on femurs, upright terrestrial bipedal carrying (infants, tools, shelters)
> He thick femur = mermaids sleeping like manatees!!!
> :D

:DDD

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From: inval...@invalid.invalid (Primum Sapienti)
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Subject: Re: Exercise/physical activity improve bone density
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 by: Primum Sapienti - Tue, 31 May 2022 04:50 UTC

I Envy JTEM wrote:
> Primum Sapienti wrote:
>
>> I Envy JTEM wrote:
>>> Meaning, what? Mushrooms don't dive so we don't need to?
>
>> Ask mv and the aa crwod
>
> You don't know what your so called "argument" is? You can't explain what
> you think you mean?

mv is the one going on about bone density. Are you claiming mushrooms have
bones?

Re: Exercise/physical activity improve bone density

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Subject: Re: Exercise/physical activity improve bone density
From: jte...@gmail.com (I Envy JTEM)
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 by: I Envy JTEM - Wed, 1 Jun 2022 17:51 UTC

Primum Sapienti wrote:

[...]

So clearly you have no idea what "Non Sequitur" means.

Here. Read this before continuing to make the same error:

https://examples.yourdictionary.com/non-sequitur-examples.html

Okay, so you said something stupid. I pointed out why your so
called "argument" was stupid by applying it to other life forms.
But, instead of seeing the idiocy in your <ahem> "argument" you
chose to misunderstand & misapply the term non sequitur.

-- --

https://jtem.tumblr.com/post/685829083109720064

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Date: Wed, 1 Jun 2022 12:07:07 -0700 (PDT)
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Subject: Re: Exercise/physical activity improve bone density
From: littoral...@gmail.com (littor...@gmail.com)
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 by: littor...@gmail.com - Wed, 1 Jun 2022 19:07 UTC

Op woensdag 1 juni 2022 om 19:51:22 UTC+2 schreef I Envy JTEM:
....
> So clearly you have no idea what "Non Sequitur" means.
> Here. Read this before continuing to make the same error:
> https://examples.yourdictionary.com/non-sequitur-examples.html
> Okay, so you said something stupid. I pointed out why your so
> called "argument" was stupid by applying it to other life forms.
> But, instead of seeing the idiocy in your <ahem> "argument" you
> chose to misunderstand & misapply the term non sequitur.

Yes, some people are really too stupid (or too stubborn?) to understand the word "pachyosteosclerosis" (POS).
As the words say: it means thick + dense cortical bone.
It's uniquely seen in slow shallow diving tetrapods, esp. in salt water.
Early Pinnipedia & Cetaceas had POS, but later most of them evolved in parallel osteoporotic bones.
Osteosclerosis alone (e.g. the human disease osteopetrosis) is not POS (osteopetrosis is brittle).
POS in Hominoidea is only seen since the Pleistocene: H.erectus>neand.>sapiens.

And many PAs are still too stupid (or stubborn?) to see what really happened:
early-Pleistocene Homo:
-POS ((connection with ice ages? Tp? lower sea-levels? other prey populations? ...?),
-dispersal along the Ind.Ocean (& later Med.Sea), incl. overseas islands (Flores etc.)
-larger brain cf. dolphins & seals: seafood is rich in brain-specific nutrients, e.g. DHA,
-stone tools cf. sea-otters: probably they often dived for shellfish.

Only incredible imbeciles believe their ancestors ran after kudus.

Google e.g. "Homo coastal disperpersal Verhaegen".

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