A multiple regression analysis clearly showed ( r ( 2 ) = 0.952 , P < 0.001 , SEE 0.011 m ) that P max , Fv IMB and lower limb extension range ( h PO ) explained a significant part of the interindividual differences in CMJ performance ( P < 0.001 ) with positive regression coefficients for P max and h PO and a negative one for Fv IMB .