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TO KEEP BALANCE
The basal ganglia (sub-cortical structures of the brain involved in movement control) are quite old in evolutionary terms, therefore they are still tuned to tetrapod/quadruped movement.
When we initiate voluntary movement the basal ganglia "assume" that our arms (which used to be the first pair of legs, in a sense) should be moving as well.
More recent research suggests that it actually counters the turning torque as each leg pivots off centre..
For much much more info see the paper by Yu Li and partners at Liverpool university on movements related to Human Arm Swinging published 5th December 2000 in the journal of experimental Biology..
For a less taxing explanation there is a decent report from Cosmos at
http://www.cosmosmagazine.com/news/2888/why-we-swing-our-arms-when-we-walk
cheers
Mar
Micheal Hoeger
Wiki User
∙ 13y agoTO KEEP BALANCE
The basal ganglia (sub-cortical structures of the brain involved in movement control) are quite old in evolutionary terms, therefore they are still tuned to tetrapod/quadruped movement.
When we initiate voluntary movement the basal ganglia "assume" that our arms (which used to be the first pair of legs, in a sense) should be moving as well.
More recent research suggests that it actually counters the turning torque as each leg pivots off centre..
For much much more info see the paper by Yu Li and partners at Liverpool university on movements related to Human Arm Swinging published 5th December 2000 in the journal of experimental Biology..
For a less taxing explanation there is a decent report from Cosmos at
http://www.cosmosmagazine.com/news/2888/why-we-swing-our-arms-when-we-walk
cheers
Mar
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Can you donate legs and arms?
Well off course you can donate your legs or arms. Well the person that's donating there legs or arms will have to suffer the life of not walking or running to place's and not having your arms to move object's to an other place.
Does dancing use more energy than walking slowly?
Yes. It's because you are using your arms as well as your legs when you dance. When walking you're not moving as much
What are the prime movers in a golf swing?
The tricep is the prime mover in the acceleration stage of the golf swing.
Are the vertebrae of the spine distal to the arms?
The vertebrae are not distal to the arms; they are medial to the arms. The hand, wrist, and fingers are distal to the arms.
Is a riders highest point on a swing a potential energy or kinetic energy?
At the highest point it's potential energy, which is then completely converted to kinetic energy as the swing travels through its lowest point at maximum speed. With an ideal swing (no friction) the sum of potential and kinetic energy stays constant (it is 'conserved'). In practice it dies away as the swing slows down, but Conservation of Energy is an important principle in science.
What does arm swing mean?
In human bipedal walking, "arm swing" is the natural motion of the arms swinging in motion with the opposing leg to prevent the body twisting.
What does armful mean?
Arming means "supplying with arms and ammunition in preparation for a conflict".
What is the movement of Nordic Walking?
You keep your arms straight without bending any elbows and swing them, pushing yourself along with the poles. Almost like skiing on land.
Whai is the frequency of swing hand while walking?
The frequency of the swing hand while walking will depend with the intensity and time that the hand is being swung.
How do you do the Mario?
Swing your arms from side to side.
How do you jump higher on a trampoline?
swing your arms and jump
Why did the girl fall of the swing?
she didnt have any arms
Are our arms at rest when we are walking?
No
How do you swing a double dutch?
Its easy, simply swing your arms simotaniously (MAKE SURE THEY ARE GOING INWARDS NOT OUTWARD)
Why did sally fall off th swing?
Because she had no arms
What does a monkey have to escape predators?
arms tail and legs to swing in trees
How do long arms help the gibbon?
To help them swing from tree to tree.
