Group: General Fitness & Exercise

Created: 2011/12/31, Members: 382, Messages: 54581

Various general exercise related discussions. Find out what it takes to reach your fitness goals through daily effective exercise. With so many options we try to find out what works best.

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ok...answer this one

fsdsk
fsdsk
Posts: 959
Joined: 2003/11/30
United States
2005/05/25, 06:07 PM
Why do they make the big plates 45# instead of 50#? I just have to ask.
billy_white
billy_white
Posts: 20
Joined: 2005/05/04
Canada
2005/05/25, 07:35 PM
hahah good question. Perhaps its the same reason hotdogs come in packages of 10 and the buns come in packages of 8.
bmellis
bmellis
Posts: 20
Joined: 2005/05/16
United States
2005/05/26, 01:36 AM
Good question...

It probably has something to do with 10 pound increments... 15, 25, 35, 45 (I'm pretty sure there are 15 lbs plates). If there were not 45's but only 50's and you wanted 90 pounds on both sides, you would have to have 4 plates (2 35's and 2 10's) for each side, if you wanted 95 pounds on each side you would need 3 plates (2 35's and a 25). All weight less than or equal to 90 on both sides can be accomplished with 2 plates or less when the series of 10 pound increments is not broken. That's why I think they make 45 instead of 50 pound plates.
asimmer
asimmer
Posts: 8,201
Joined: 2003/01/07
United States
2005/05/26, 08:03 AM
Hmm, I think it has something to do with the conversion to kilograms, or maybe that the collars used to be bigger and weighed about 2 lbs themselves.

then if uyou had a bar that weighed 45lbs (99k) and you added cuffs it would be about 103-104 lbs... hm.

That is my thought on why the easy curl bar weighs an odd 18.something - because when you add the big collars it weighs about an even 20 and then it is easier to add up the weight you add to it.

Okay, so i am guessing, but now you have piqued my curiosity and I will have to go on a quest for knowledge....

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Vitality shows not only in the ability to persist but the ability to start over. - F. Scott Fitzgerald
bropie
bropie
Posts: 1,084
Joined: 2004/12/04
Canada
2005/05/26, 08:43 AM
i think you're right asimmer.. 45 lbs is equal to 20 kilos. its just easier for conversion, than to say 50 lbs is 22.727272727272727272 kilos..
Carivan
Carivan
Posts: 8,542
Joined: 2002/01/20
Canada
2005/05/26, 09:39 PM
20kg=44lbs

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Still trying to find out how to do the Hollywood Free Press.

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Montreal Canada
dvelswk
dvelswk
Posts: 192
Joined: 2005/05/07
United States
2005/05/26, 09:56 PM
Agree with bropie on the conversion to kilos. Kilograms are used more often then lbs, atleast in other countries I think. It would be too hard to convert 50lbs in to kilos.
DanielJLove
DanielJLove
Posts: 320
Joined: 2004/03/30
United States
2005/05/27, 12:14 PM
It is to increase your intellectual ability to add in your head while you are lifting weights. It would be way to easy to figure out what weight you were lifting if the plates were 50lbs and the bar was 50 lbs. With good odd numbers like 45 you have to think about it, thus stimulating your muscle and mind at the same time. :)
flyonthewall
flyonthewall
Posts: 1,823
Joined: 2005/01/18
Canada
2005/05/27, 09:12 AM
Interestingly enough if you convert from 20kg you get 44.1lb, but if you convert from 45lbs you get 20.4kg.:surprised:
Lonegirl
Lonegirl
Posts: 446
Joined: 2002/11/13
Canada
2005/05/27, 10:09 AM
kg wt X 2.2 = Lbs (20 X 2.2 = 44)
Lbs divided by 2.2 + kg (45/2.2 = 20.45)
bigandrew
bigandrew
Posts: 5,146
Joined: 2002/10/21
United States
2005/05/28, 06:54 AM
maybe cause the 45lb plate is easier to handel by all ages,genders and is cheaper to make.....than a 50?

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" The only true eye, is your minds eye"- plato