Table 4. Product moment correlation coefficients for variables of differences (changes) calculated on a basis of pre- and post-testing for plyometric-conditioning and skill-based-conditioning. BHdiff BMdiff S20mdiff SBJdiff CMJdiff MBTdiff BMdiff Plyometric- 0.12 - Skill-based- 0.20 - S20mdiff Plyometric- 0.02 -0.26 - Skill-based- 0.09 0.18 - SBJdiff Plyometric- 0.11 -0.32 0.62* - Skill-based- -0.01 -0.33 -0.07 - CMJdiff Plyometric- 0.05 0.01 0.53* 0.38 - Skill-based- 0.13 -0.36 0.18 0.42 - MBTdiff Plyometric- 0.21 -0.03 -0.24 0.00 0.05 - Skill-based- 0.24 -0.21 0.36 0.29 0.43 - BHdiff – variable of difference in body height between pre- and post-testing, BMdiff – variable of difference in body mass between pre- and post-testing, S20mdiff – variable of difference in sprint over 20 meters distance between pre- and post-testing, SBJdiff – variable of difference in standing broad jump between pre- and post-testing, CMJdiff – variable of difference in countermovement jump between pre- and post-testing, MBTdiff – variable of difference in medicine ball throw between pre- and post-testing * denotes coefficients significant at p < 0.05