Predicting maximal strength - Revision history

A WASSERMANN at 15:45, 20 February 2013

2013-02-20T15:45:45Z

← Older revision		Revision as of 15:45, 20 February 2013
Line 31:		Line 31:
	brd.create('text',[5,1.6,		brd.create('text',[5,1.6,
	function(){return "predicted 1RM = " + (w.Value()*f(Math.floor(r.X()))).toFixed(2);}],		function(){return "predicted 1RM = " + (w.Value()*f(Math.floor(r.X()))).toFixed(2);}],
	{fontSize:~~'24px'~~,strokeColor:'red'});		{fontSize:24,strokeColor:'red'});

	</jsxgraph>		</jsxgraph>
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	brd.create('text',[5,1.6,		brd.create('text',[5,1.6,
	function(){return "predicted 1RM = " + (w.Value()*f(Math.floor(r.X()))).toFixed(2);}],		function(){return "predicted 1RM = " + (w.Value()*f(Math.floor(r.X()))).toFixed(2);}],
	{fontSize:~~'24px'~~,strokeColor:'red'});		{fontSize:24,strokeColor:'red'});

	</source>		</source>

	[[Category:Examples]]		[[Category:Examples]]

Michael at 11:57, 8 June 2011

2011-06-08T11:57:03Z

← Older revision		Revision as of 11:57, 8 June 2011
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	Suppose you managed to do 9 repetitions with a weight of 80 kilograms. In the graphical calculator below you have to drag the black dot to r=9 and the blue dot to weight=80. Now, you can read of the 1RM prediction of 95.43.		Suppose you managed to do 9 repetitions with a weight of 80 kilograms. In the graphical calculator below you have to drag the black dot to r=9 and the blue dot to weight=80. Now, you can read of the 1RM prediction of 95.43.

	<jsxgraph width=700 height=500>		<jsxgraph width="700" height="500">
	var brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-1,1.8,30,0.8]~~});~~		var brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-1,1.8,30,0.8], axis: true});
	~~bx = brd.create('axis', [[0~~,~~0.9], [1,0.9]], {});~~
	~~by = brd.create('~~axis~~', [[0,0], [0,1]], {~~});

	var w = brd.create('slider',[[24,0.92],[24,1.7],[0,50,200]],{name:'weight w',snapWidth:1});		var w = brd.create('slider',[[24,0.92],[24,1.7],[0,50,200]],{name:'weight w',snapWidth:1});
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	=== The underlying JavaScript code ===		=== The underlying JavaScript code ===
	<source lang="~~xml~~">		<source lang="javascript">
	~~<jsxgraph width=700 height=500~~>		var brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-1,1.8,30,0.8], axis: true});
	var brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-1,1.8,30,0.8]~~});~~
	~~bx = brd.create('axis'~~, ~~[[0,0.9], [1,0.9]], {});~~
	~~by = brd.create('~~axis~~', [[0,0], [0,1]], {~~});

	var w = brd.create('slider',[[24,0.92],[24,1.7],[0,50,200]],{name:'weight w',snapWidth:1});		var w = brd.create('slider',[[24,0.92],[24,1.7],[0,50,200]],{name:'weight w',snapWidth:1});
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	{fontSize:'24px',strokeColor:'red'});		{fontSize:'24px',strokeColor:'red'});

	~~</jsxgraph>~~
	</source>		</source>

	[[Category:Examples]]		[[Category:Examples]]

A WASSERMANN at 20:49, 29 September 2010

2010-09-29T20:49:01Z

← Older revision		Revision as of 20:49, 29 September 2010
Line 13:		Line 13:
	<jsxgraph width=700 height=500>		<jsxgraph width=700 height=500>
	var brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-1,1.8,30,0.8]});		var brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-1,1.8,30,0.8]});
	bx = brd.~~createElement~~('axis', [[0,0.9], [1,0.9]], {});		bx = brd.create('axis', [[0,0.9], [1,0.9]], {});
	by = brd.~~createElement~~('axis', [[0,0], [0,1]], {});		by = brd.create('axis', [[0,0], [0,1]], {});

	var w = brd.~~createElement~~('slider',[[24,0.92],[24,1.7],[0,50,200]],{name:'weight w',snapWidth:1});		var w = brd.create('slider',[[24,0.92],[24,1.7],[0,50,200]],{name:'weight w',snapWidth:1});

	f = function(x){ return (0.988+0.0104x+0.00190xx-0.0000584xxx); };		f = function(x){ return (0.988+0.0104x+0.00190xx-0.0000584xxx); };

	var c = brd.~~createElement~~('functiongraph',[		var c = brd.create('functiongraph',[
	f,		f,
	1,22		1,22
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	);		);

	var r = brd.~~createElement~~('glider',[10,1,c],{name:'',fillColor:'black',strokeColor:'black',style:6});		var r = brd.create('glider',[10,1,c],{name:'',fillColor:'black',strokeColor:'black',style:6});
	var t = brd.~~createElement~~('text',[function(){return r.X()+1;},		var t = brd.create('text',[function(){return r.X()+1;},
	function(){return r.Y();},		function(){return r.Y();},
	function(){return "repetitions r = " + Math.floor(r.X());}]);		function(){return "repetitions r = " + Math.floor(r.X());}]);

	brd.~~createElement~~('text',[5,1.6,		brd.create('text',[5,1.6,
	function(){return "predicted 1RM = " + (w.Value()*f(Math.floor(r.X()))).toFixed(2);}],		function(){return "predicted 1RM = " + (w.Value()*f(Math.floor(r.X()))).toFixed(2);}],
	{fontSize:'24px',strokeColor:'red'});		{fontSize:'24px',strokeColor:'red'});

	</jsxgraph>		</jsxgraph>
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	<jsxgraph width=700 height=500>		<jsxgraph width=700 height=500>
	var brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-1,1.8,30,0.8]});		var brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-1,1.8,30,0.8]});
	bx = brd.~~createElement~~('axis', [[0,0.9], [1,0.9]], {});		bx = brd.create('axis', [[0,0.9], [1,0.9]], {});
	by = brd.~~createElement~~('axis', [[0,0], [0,1]], {});		by = brd.create('axis', [[0,0], [0,1]], {});

	var w = brd.~~createElement~~('slider',[[24,0.92],[24,1.7],[0,50,200]],{name:'weight w',snapWidth:1});		var w = brd.create('slider',[[24,0.92],[24,1.7],[0,50,200]],{name:'weight w',snapWidth:1});

	f = function(x){ return (0.988+0.0104x+0.00190xx-0.0000584xxx); };		f = function(x){ return (0.988+0.0104x+0.00190xx-0.0000584xxx); };

	var c = brd.~~createElement~~('functiongraph',[		var c = brd.create('functiongraph',[
	f,		f,
	1,22		1,22
Line 58:		Line 58:
	);		);

	var r = brd.~~createElement~~('glider',[10,1,c],{name:'',fillColor:'black',strokeColor:'black',style:6});		var r = brd.create('glider',[10,1,c],{name:'',fillColor:'black',strokeColor:'black',style:6});
	var t = brd.~~createElement~~('text',[function(){return r.X()+1;},		var t = brd.create('text',[function(){return r.X()+1;},
	function(){return r.Y();},		function(){return r.Y();},
	function(){return "repetitions r = " + Math.floor(r.X());}]);		function(){return "repetitions r = " + Math.floor(r.X());}]);

	brd.~~createElement~~('text',[5,1.6,		brd.create('text',[5,1.6,
	function(){return "predicted 1RM = " + (w.Value()*f(Math.floor(r.X()))).toFixed(2);}],		function(){return "predicted 1RM = " + (w.Value()*f(Math.floor(r.X()))).toFixed(2);}],
	{fontSize:'24px',strokeColor:'red'});		{fontSize:'24px',strokeColor:'red'});

	</jsxgraph>		</jsxgraph>

	</source>		</source>

	[[Category:Examples]]		[[Category:Examples]]

A WASSERMANN at 09:04, 18 August 2009

2009-08-18T09:04:54Z

← Older revision		Revision as of 09:04, 18 August 2009
Line 9:		Line 9:

	'''How to use this graphical calculator?'''		'''How to use this graphical calculator?'''
	Suppose you managed to do 9 repetitions with a weight of 80 kilograms. In the graphical calculator below drag the black dot to r=9 and the blue dot to weight=80. ~~Then~~ the 1RM prediction of 95.43 ~~is displayed~~.		Suppose you managed to do 9 repetitions with a weight of 80 kilograms. In the graphical calculator below you have to drag the black dot to r=9 and the blue dot to weight=80. Now, you can read of the 1RM prediction of 95.43.

	<jsxgraph width=700 height=500>		<jsxgraph width=700 height=500>

A WASSERMANN at 09:03, 18 August 2009

2009-08-18T09:03:50Z

← Older revision		Revision as of 09:03, 18 August 2009
Line 9:		Line 9:

	'''How to use this graphical calculator?'''		'''How to use this graphical calculator?'''
	Suppose you managed to do 9 repetitions with a weight of 45 kilograms. In the graphical calculator below drag the black dot to r=9 and the blue dot to weight=45. Then the 1RM prediction is displayed		Suppose you managed to do 9 repetitions with a weight of 80 kilograms. In the graphical calculator below drag the black dot to r=9 and the blue dot to weight=80. Then the 1RM prediction of 95.43 is displayed.

	<jsxgraph width=700 height=500>		<jsxgraph width=700 height=500>

A WASSERMANN at 09:03, 18 August 2009

2009-08-18T09:03:02Z

← Older revision		Revision as of 09:03, 18 August 2009
Line 9:		Line 9:

	'''How to use this graphical calculator?'''		'''How to use this graphical calculator?'''
	Suppose you managed to do 9 repetitions with a weight of 45 kilograms. ~~Now,~~ drag the black dot to r=9 and		Suppose you managed to do 9 repetitions with a weight of 45 kilograms. In the graphical calculator below drag the black dot to r=9 and the blue dot to weight=45. Then the 1RM prediction is displayed

	<jsxgraph width=700 height=500>		<jsxgraph width=700 height=500>

A WASSERMANN at 09:01, 18 August 2009

2009-08-18T09:01:50Z

← Older revision		Revision as of 09:01, 18 August 2009
Line 7:		Line 7:
	</math>		</math>
	The horizontal axis denotes the number of repetitions, the vertical axis denotes the ratio 1RM/RTF.		The horizontal axis denotes the number of repetitions, the vertical axis denotes the ratio 1RM/RTF.

			'''How to use this graphical calculator?'''
			Suppose you managed to do 9 repetitions with a weight of 45 kilograms. Now, drag the black dot to r=9 and

	<jsxgraph width=700 height=500>		<jsxgraph width=700 height=500>

A WASSERMANN at 13:50, 13 August 2009

2009-08-13T13:50:12Z

← Older revision		Revision as of 13:50, 13 August 2009
Line 6:		Line 6:
	1RM = w\cdot(0.988+0.0104\cdot x+0.00190\cdot x^2-0.0000584\cdot x^3)		1RM = w\cdot(0.988+0.0104\cdot x+0.00190\cdot x^2-0.0000584\cdot x^3)
	</math>		</math>
	The ~~horizontals~~ axis denotes the number of repetitions, the vertical axis denotes the ratio 1RM/RTF.		The horizontal axis denotes the number of repetitions, the vertical axis denotes the ratio 1RM/RTF.

	<jsxgraph width=700 height=500>		<jsxgraph width=700 height=500>

A WASSERMANN at 13:49, 13 August 2009

2009-08-13T13:49:46Z

← Older revision		Revision as of 13:49, 13 August 2009
Line 37:		Line 37:

	* W. Kemmler, D. Lauber, J. Mayhew, and A. Wassermann: "Predicting Maximal Strength in Trained Postmenopausal Woman", ''Journal of Strength and Conditioning Research'' 20(4), (2006), pp. 838-842.		* W. Kemmler, D. Lauber, J. Mayhew, and A. Wassermann: "Predicting Maximal Strength in Trained Postmenopausal Woman", ''Journal of Strength and Conditioning Research'' 20(4), (2006), pp. 838-842.

			=== The underlying JavaScript code ===
			<source lang="xml">
			<jsxgraph width=700 height=500>
			var brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-1,1.8,30,0.8]});
			bx = brd.createElement('axis', [[0,0.9], [1,0.9]], {});
			by = brd.createElement('axis', [[0,0], [0,1]], {});

			var w = brd.createElement('slider',[[24,0.92],[24,1.7],[0,50,200]],{name:'weight w',snapWidth:1});

			f = function(x){ return (0.988+0.0104x+0.00190xx-0.0000584xxx); };

			var c = brd.createElement('functiongraph',[
			f,
			1,22
			], {strokeColor:'black', highlightStrokeColor:'black'}
			);

			var r = brd.createElement('glider',[10,1,c],{name:'',fillColor:'black',strokeColor:'black',style:6});
			var t = brd.createElement('text',[function(){return r.X()+1;},
			function(){return r.Y();},
			function(){return "repetitions r = " + Math.floor(r.X());}]);

			brd.createElement('text',[5,1.6,
			function(){return "predicted 1RM = " + (w.Value()*f(Math.floor(r.X()))).toFixed(2);}],
			{fontSize:'24px',strokeColor:'red'});

			</jsxgraph>

			</source>

	[[Category:Examples]]		[[Category:Examples]]

A WASSERMANN at 13:47, 13 August 2009

2009-08-13T13:47:58Z

← Older revision		Revision as of 13:47, 13 August 2009
Line 30:		Line 30:
	brd.createElement('text',[5,1.6,		brd.createElement('text',[5,1.6,
	function(){return "predicted 1RM = " + (w.Value()*f(Math.floor(r.X()))).toFixed(2);}],		function(){return "predicted 1RM = " + (w.Value()*f(Math.floor(r.X()))).toFixed(2);}],
	{fontSize:'24px'});		{fontSize:'24px',strokeColor:'red'});

	</jsxgraph>		</jsxgraph>