NEWS: Arm-swinging riddle solved: Scientists have long wondered why humans swing their arms when they walk

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THURSDAY, JUL 30, 2009| 5 comments

Arm-swinging riddle solved: Scientists have long wondered why humans swing their arms when they walk

PARIS (AFP) â€“ Biomedical researchers on Wednesday said they could explain why we swing our arms when we walk, a practice that has long piqued scientific curiosity.

Swinging one's arms comes at a cost. We need muscles to do it, and we need to provide energy in the form of food for those muscles. So what's the advantage?

Little or none, some experts have said, contending that arm-swinging, like our appendix, is an evolutionary relic from when we used to go about on all fours.

But a trio of specialists from the United States and the Netherlands have put the question to rigorous tests. ...

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news.yahoo.com

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· Page 1 · Found: 5 user comment(s)

8/1/09 3:23 AM

wake up

| aust

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Angela Wittman wrote:
Apparently these folks have way too much time on their hands...

and our money!

Use there own money on this or evilution as see if any money is given them .

7/30/09 10:20 PM

Angela Wittman

| United States

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Apparently these folks have way too much time on their hands...

7/30/09 7:43 PM

Publican

| Northern Hemisphere

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Not to mention the lack of cosmetic appeal in walking any other way.

Unbelievable. I would like to have heard the reverent tones of 'research talk' while they were proceeding toward this cataclysmic discovery.

7/30/09 11:28 AM

Bruce Lantto

| Harrisville, Michigan

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Unbelieving Scientists are sooo..stupid, image the waste of time that was, to find out why we swing our arms when we walk. And then to say we developed that when our ancestors walked on all fours. The only time I or my ancestors walked on all it was when we were babies, but that was called crawling. Let me reiterate unbelieving Scientists are so stupid.

7/30/09 6:23 AM

wake up

| aust

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And that was worth working out. Ill sleep better tonight now, Thx.

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