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. 2018 Nov 13;6:e5937. doi: 10.7717/peerj.5937

Table 1. Pearson’s correlations coefficients between the force–velocity relationship parameters (F0, v0, and Pmax) and performance variables (unloaded squat jump height and 20 m sprint time) obtained during the jumping and sprinting testing.

Sport F0 (N/kg) v0 (m/s) Pmax (W/kg) Performance
Basketball
 ♂HL (n = 16) 0.16 −0.07 0.65** 0.60*
 ♂ML (n = 12) 0.20 0.48 0.25 0.67*
 ♀ML (n = 17) 0.53* −0.28 0.67** 0.92**
 All (n = 45) 0.33* −0.26 0.70*** 0.82***
Futsal
 ♂EL (n = 39) 0.14 0.03 0.02 −0.23
 ♂HL (n = 10) 0.43 0.54 0.49 −0.36
 ♀ML (n = 28) 0.10 0.26 0.34 0.47*
 All (n = 77) 0.40*** 0.35** 0.70*** 0.74***
Gymnastics
 ♂EL (n = 14) 0.33 0.35 0.60* 0.63*
 ♀EL (n = 12) 0.13 0.18 0.45 0.60*
 All (n = 26) 0.34 0.56** 0.82*** 0.81***
Handball
 ♂EL (n = 31) −0.12 0.31 0.40* 0.63**
 ♀EL (n = 15) 0.47 0.27 0.47 −0.35
 All (n = 46) 0.38** 0.01 0.50*** 0.73***
Judo
 ♂HL (n = 10) 0.60 0.22 0.39 −0.63
 ♀HL (n = 10) 0.46 0.71* 0.59 0.77**
 All (n = 20) 0.45* 0.88*** 0.65** 0.87***
Karate
 ♂ML (n = 18) 0.26 0.42 0.41 −0.46
 ♀ML (n = 14) 0.46 0.29 0.24 0.67**
 All (n = 32) 0.24 0.48** 0.61*** 0.81***
Rugby
 ♂EL (n = 21) 0.01 0.26 −0.01 −0.27
 ♀EL (n = 15) 0.01 0.21 0.09 −0.47
 All (n = 36) −0.10 0.28 −0.02 0.79***
Soccer
 ♂EL (n = 21) 0.31 −0.05 0.15 −0.32
 ♂HL (n = 18) 0.34 0.15 0.24 −0.45
 ♂ML (n = 34) 0.42* 0.27 0.44** 0.59***
 ♀EL (n = 18) 0.11 0.06 0.49** 0.60***
 ♀ML (n = 20) 0.37 0.18 0.63** 0.92***
 All (n = 111) 0.47*** 0.23* 0.62*** 0.74***
Sprint
 ♂HL (n = 15) 0.50 0.36 0.36 −0.35
 ♀HL (n = 13) 0.55 0.18 0.26 −0.50
 All (n = 28) 0.60** 0.55** 0.66*** 0.73***
Taekwondo
 ♂ML (n = 13) 0.39 0.45 0.21 −0.46
 ♀ML (n = 10) 0.31 0.38 0.10 −0.28
 All (n = 23) 0.34 0.69*** 0.36 0.59**
Tennis
 ♂HL (n = 17) 0.50* 0.37 0.41 −0.57
 ♀HL (n = 14) 0.54* 0.61* 0.44 −0.34
 All (n = 31) 0.43* 0.69*** 0.62*** 0.69***
Sports science students
 ♂LL (n = 16) 0.58* 0.43 0.64** 0.67**
 ♀LL (n = 14) 0.48* 0.24 0.61* 0.59*
 All (n = 30) 0.57** 0.48** 0.78*** 0.83***
Volleyball
 ♂ML (n = 19) 0.47* −0.31 −0.10 −0.27
 ♀ML (n = 16) 0.48* −0.04 0.48 0.53*
 All (n = 35) 0.47** −0.04 0.47** 0.67***
Weightlifting
 ♂HL (n = 9) 0.29 0.32 0.49 −0.48
 ♀HL (n = 8) 0.36 0.23 0.46 −0.45
 All (n = 17) 0.67** 0.22 0.71** 0.70**

Notes:

F0, theoretical maximal force; v0, theoretical maximal velocity; Pmax, theoretical maximal power; LL, low level or amateur; ML, medium level or semi-professional; HL, high level or professional; EL, elite level or international. Significant correlations (highlighted in bold): *P < 0.05, **P < 0.01, ***P < 0.001. Qualitative interpretations of the Pearson’s correlations coefficients: trivial (r < 0.1), small (r = 0.1–0.3), moderate (r = 0.3–0.5), large (r = 0.5–0.7), very large (r = 0.7–0.9), and nearly perfect (r > 0.9) (Hopkins et al., 2009).