Schwartz Formula

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AMH_Power		Schwartz Formula	05-08-2014 @ 22:54
we ride at dawn Member 4363, 1442 posts SQ 310, BP 250, DL 320 880.0 kgs @ 104kgs UnEq	Post Edited: 05.08.2014 @ 22:54 PM by AMH_Power http://bdfpa.co.uk/rule/BDFPA%20HANDBOOK-2013%20AMD%201.pdf Page 85.... Formula = (0.488) - ((0.0009) x (bodyweight –155)) But the published coefficients are not derived from that formula... Is the formula wrong or the published coefficients? Or my basic maths? Cheers

AMH_Power		...	05-08-2014 @ 23:03
we ride at dawn Member 4363, 1442 posts SQ 310, BP 250, DL 320 880.0 kgs @ 104kgs UnEq	Just to confirm for a bodyweight of 100kg: Formula = (0.488) - ((0.0009) x (bodyweight –155)) Formula = (0.488) - ((0.0009) x (100 –155)) Formula = (0.488) - ((0.0009) x (-55)) Formula = (0.488) - (-0.0495) Formula = 0.488 + 0.0495 Formula = 0.5375 Published coefficient is 0.5540 10% off is pretty significant....

Henk		...	06-08-2014 @ 00:38
Member 5095, 783 posts SQ 200, BP 162.5, DL 220 582.5 kgs @ 119kgs UnEq	Your maths is right, it looks like the stated formula has not been used to calculate those coefficients. They refer to a revised formula from 1978, I guess they could be out of step. Mostly where they publish the coefficients across federations they don't publish the formula - I couldn't find a real definition of the formula anywhere.

Tom_Martin		...	06-08-2014 @ 00:40
No one believed him anyway. Member 958, 11411 posts SQ 410, BP 215, DL 425 1050.0 kgs @ 100kgs UnEq	Jeeeeez this country has really gone to s**t.

MrSmall		...	06-08-2014 @ 00:43
Gone and easily forgotten....... Member 331, 22298 posts SQ 185, BP 100, DL 230 515.0 kgs @ 85kgs UnEq	Is this from Doc Schwartz?

AMH_Power		...	06-08-2014 @ 09:18
we ride at dawn Member 4363, 1442 posts SQ 310, BP 250, DL 320 880.0 kgs @ 104kgs UnEq	Tom_Martin said:Jeeeeez this country has really gone to s**t. Agreed, that why I was writing an Android app to do it for me! But my expected output didn't match the rule book.... £££

ChrisMcCarthy		...	06-08-2014 @ 09:57
Lost his pen, then found his pen. #phew Member 4899, 2956 posts	You basic maths is correct, but where did you get a 10% difference from?


AMH_Power		...	06-08-2014 @ 10:07
we ride at dawn Member 4363, 1442 posts SQ 310, BP 250, DL 320 880.0 kgs @ 104kgs UnEq	ChrisMcCarthy said:You basic maths is correct, but where did you get a 10% difference from? The score takes me from around 400pts to 360(ish).

ChrisMcCarthy		...	06-08-2014 @ 12:00
Lost his pen, then found his pen. #phew Member 4899, 2956 posts	What did you actually weigh? If you were 100kg it takes you from 390 to 378 or so for a 705 total.

AMH_Power		...	06-08-2014 @ 12:07
we ride at dawn Member 4363, 1442 posts SQ 310, BP 250, DL 320 880.0 kgs @ 104kgs UnEq	Post Edited: 06.08.2014 @ 12:10 PM by AMH_Power ChrisMcCarthy said:What did you actually weigh? If you were 100kg it takes you from 390 to 378 or so for a 705 total. Was only a rough reference, used 4-5 examples and where the original formula has a much higher dampening effect on dimishing returns of strength/weight, the published ones are more normalised, which means it favors the fatties more. *ps. I really couldn't care from a lifter perspective, it's purely for writing an app on android... I wrote it and it didn't tally up with the official figures... so I can't publish it until I find out if the formula is printed wrong, or if it's the printed coefficients (which could be a can of worms).

AMH_Power		...	06-08-2014 @ 12:12
we ride at dawn Member 4363, 1442 posts SQ 310, BP 250, DL 320 880.0 kgs @ 104kgs UnEq	ChrisMcCarthy said:What did you actually weigh? If you were 100kg it takes you from 390 to 378 or so for a 705 total. Apparently I can't use a calculator! Still, that's a significant difference

ChrisMcCarthy		...	06-08-2014 @ 12:26
Lost his pen, then found his pen. #phew Member 4899, 2956 posts	sorry, my background is in Maths so it just jumped out at me. I thought that the Schwarz had been superceded by the Wilks anyway, am suprised your Fed still uses it.

JackRevans		...	06-08-2014 @ 12:30
'There was also a sausage in my mouth.' Member 2477, 16481 posts SQ 190, BP 130, DL 235 555.0 kgs @ 83kgs UnEq	MrSmall said:Is this from Doc Schwartz? loal, I was thinking that

Lurkio		...	06-08-2014 @ 12:37
as deep as his fat little body will allow Member 265, 4173 posts SQ 222.5, BP 142.5, DL 235 600.0 kgs @ 108kgs UnEq	ChrisMcCarthy said: I thought that the Schwarz had been superceded by the Wilks anyway, am suprised your Fed still uses it. This.

Wayne_Cowdrey		...	06-08-2014 @ 12:40
Still got a little bit of strength Member 400, 22063 posts	This is the sort of thread that requires tits.

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