Wilks coefficient
The Wilks Coefficient is a gender and body weight-dependent factor in power sports competitions , multiplied by the moving weight, results in a similar score. It is considered the international standard for competitions. It was named after the Australian Robert Wilks , who developed the formula for determining the coefficient. The Wilks coefficient and others used in Germany, such as the Sinclair-Malone-Meltzer coefficient, are not internationally standardized. In Russia and Australia, for example, the Wilks coefficient is used. The "Schwartz table" used earlier is no longer used.
The BVDK ( Federal Association of German Powerlifters ) has adopted the Wilks coefficients in its technical rules for powerlifting in accordance with IPF ( International Powerlifting Federation ) (valid from June 2011).
calculation
For m is body weight use of the athlete.
| parameter | Men | Women |
|---|---|---|
| a | −216.0475144 | 594.31747775582 |
| b | 16.2606339 | −27.23842536447 |
| c | −0.002388645 | 0.82112226871 |
| d | −0.00113732 | −0.00930733913 |
| e | 7.01863E-06 | 47.31582E-06 |
| f | −1.291E-08 | −9.054E-08 |
example
In a bench press competition , three athletes achieve the following performances and results:
| Surname | Body weight (kg) | Wilks coefficient | pressed weight (kg) | Wilks points |
|---|---|---|---|---|
| Athlete 1 | 75 | 0.7126 | 110 | 78.386 |
| Athlete 2 | 90 | 0.6384 | 120 | 76,608 |
| Athlete 3 | 105 | 0.5976 | 130 | 77.688 |
Even if athlete 2 managed 10 kg more than athlete 1, he scores a lower number of points due to the 15 kg higher body weight and thus lower coefficients. Athlete 3 cannot achieve the highest number of points despite the greatest weight conquered, as he too has a low coefficient due to the 30 kg higher body weight.
List of IPF associations using the Wilks coefficient
- USA Powerlifting (USAPL)
- Canadian Powerlifting Union (CPU)
- Finnish Powerlifting Federation (FPF)
- Great Britain Powerlifting Federation (GBPF)
- Association of the Philippines (PAP)
- Hungarian Powerlifting Federation (HPF)
- Powerlifting Australia (PA)
- Russian Powerlifting Federation (RPF)
- South African Powerlifting Federation (SAPF)
- Swedish Powerlifting Federation (SPF)
- Ukraine Powerlifting Federation (UPF)
See also
Web links
- Relative points according to Wilks
- Scoring table according to Wilks, with an example
- Wilks coefficient calculator (online calculation)
- Wilks coefficient Android apps on Google Play
Individual evidence
- ↑ Wilks coefficients of the IPF (International Powerlifting Federation) ( Memento of the original from October 10, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ PDF file ( Memento of the original dated August 29, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Technical rules in powerlifting according to IPF
