Predicting maximal strength: Difference between revisions
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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> | ||
Revision as of 13:47, 13 August 2009
This little application tries to predict the maximal strength (1RM) based on a repetitions to fatigue (RTF) value.
The calculation is based on the so called KLW formula:
- [math]\displaystyle{ 1RM = w\cdot(0.988+0.0104\cdot x+0.00190\cdot x^2-0.0000584\cdot x^3) }[/math]
The horizontals axis denotes the number of repetitions, the vertical axis denotes the ratio 1RM/RTF.
References
- 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.
