Login

Join for Free!
118319 members


why most poeple have a longer lefthand than their righthand

Debate and discussion of any biological questions not pertaining to a particular topic.

Moderator: BioTeam

why most poeple have a longer lefthand than their righthand

Postby ludwigye » Sat Oct 22, 2005 1:27 pm

is that due to the fact that most people are righthanded, using the righthands more freguently,so the righthands become shorter?

do infants have the same lenghth of their hands?do lefthanded people tend to have longer right hands than their lefthands?

what's the causeation of being shorter and being used more frequently?or is there some other reason causing both two(e.g.genetic reason causing one hand to be shorter than the other,and causing the owner to tender to using the formmer more frequently?

thank your for your help!
ludwigye
Garter
Garter
 
Posts: 6
Joined: Sat Oct 22, 2005 1:06 pm

Postby MrMistery » Sat Oct 22, 2005 4:58 pm

Where did you get the info that most people have a shorter right hand than left hand?
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter
User avatar
MrMistery
Inland Taipan
Inland Taipan
 
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)

Postby hurly » Sat Oct 22, 2005 5:50 pm

I don't have short left or right hand... :shock:
hurly
Coral
Coral
 
Posts: 251
Joined: Sat May 21, 2005 6:59 pm


Postby Morris » Sun Oct 23, 2005 11:44 am

I know that we have a leg shorther than other, even if the difference is very low, but i haven't heard yet that we have a hand shorter than other. :? :?
http://www.forumbiotech.forumfree.net(In italian)
http://www.forumfree.net/?c=37503 (international medicine forum)(In english)

http://u2forum.forumfree.net (in Italian)
User avatar
Morris
Death Adder
Death Adder
 
Posts: 57
Joined: Sat Oct 22, 2005 2:42 pm
Location: Italy

Postby new_guy » Sun Oct 23, 2005 2:10 pm

Is that your original theory , and have you measured your own hands , and try to measure other people hands .
User avatar
new_guy
Coral
Coral
 
Posts: 350
Joined: Sun Oct 23, 2005 6:51 am
Location: Malaysia

Postby baikuza » Mon Oct 24, 2005 2:04 pm

hei, look like as at lamark said.
but, as i know it works on elephant.
u know it's "horn"(kind of its tooth-i forgot the right name)
but in my mind i think that the righthanded men ussually have a stronger right hand than the left. it's just a prediction.
mm... it's not work on men who have unussual characteristic. he..2
baikuza
Coral
Coral
 
Posts: 429
Joined: Tue Aug 30, 2005 10:09 am
Location: Yogyakarta, indonesia, south-east asia

we measured the hands of 30 boys and 30 girls

Postby ludwigye » Mon Oct 24, 2005 11:32 pm

well,three of us measured the hands of 30 boys and 30 girls.They all have a little bit longer left hands(we didin't expect that)but the difference is so small.I am not sure whther it is the fact,maybe it was just due to the mearuement error?
ludwigye
Garter
Garter
 
Posts: 6
Joined: Sat Oct 22, 2005 1:06 pm

Postby elevatedfly » Tue Oct 25, 2005 4:28 pm

does the sample include different races? different nutrition types? There are numerous variables when dealing with human subjects. You should first increase your sample size. n=30 males, 30 females is not quite enough to extrapolate the information to the entire human population.
elevatedfly
Garter
Garter
 
Posts: 6
Joined: Fri Oct 21, 2005 7:58 pm
Location: Texas, USA

Postby mith » Tue Oct 25, 2005 11:46 pm

using inferential statistics(standard deviation et. al) you can see whether your difference is significant or conicidental.
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
User avatar
mith
Inland Taipan
Inland Taipan
 
Posts: 5345
Joined: Thu Jan 20, 2005 8:14 pm
Location: Nashville, TN

Postby new_guy » Wed Oct 26, 2005 1:28 pm

"A little change in evidence can change everything"
From CSI:NY[/quote]
User avatar
new_guy
Coral
Coral
 
Posts: 350
Joined: Sun Oct 23, 2005 6:51 am
Location: Malaysia

Postby Terry K. » Wed Oct 26, 2005 1:38 pm

And you have to look at the fact of which hand are they more dominant with, that could play a slight factor, but enough to taint your results!
Saying that any two humans are exactly alike is like saying republicans have morals
Terry K.
Death Adder
Death Adder
 
Posts: 96
Joined: Mon Oct 24, 2005 1:42 pm
Location: Myerstown, PA

Postby PatriotUSA » Wed Oct 26, 2005 4:35 pm

"is that due to the fact that most people are righthanded, using the righthands more freguently,so the righthands become shorter?"

First of all, you said you tested boys and girls. Obviously they haven't been using their hands for all that long, so why would you even consider that as one of the possibilities. Based on your alleged "experiment" it would have to be genetic.

Second of all, 30 boys and 30 girls is by far not enough to show any real evidence that one hand is "shorter" than another.
PatriotUSA
Garter
Garter
 
Posts: 6
Joined: Wed Oct 26, 2005 1:30 pm

Next

Return to General Discussion

Who is online

Users browsing this forum: No registered users and 10 guests