# Predicting maximal strength

From JSXGraph Wiki

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]

### 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.