Table 3 Modeled Boltzmann parameters for vastus lateralis , rectus femoris and vastus medialis muscles

MEPmax · Mmax ^-1

10% MVC

34.7 ± 21.6

68.8 ± 19.6^*,#

42.7 ± 22.3

20% MVC

42.9 ± 17.1

83.3 ± 19.3

51.2 ± 18.7

50% MVC

42.6 ± 11.1

83.0 ± 23.0

47.7 ± 11.9

S 50

10% MVC

43 ± 10^**,##

45 ± 11^**,##

44 ± 10^**,##

20% MVC

38 ± 11^**

40 ± 10^**

39 ± 10^**

50% MVC

32 ± 9

30 ± 7

34 ± 7

k

10% MVC

0.051 ± 0.018^**,#

0.036 ± 0.029

0.037 ± 0.018

20% MVC

0.032 ± 0.020

0.027 ± 0.015

0.031 ± 0.026

50% MVC

0.020 ± 0.018

0.019 ± 0.014

0.027 ± 0.012

r ²

10% MVC

Model

0.928 ± 0.045^†

0.964 ± 0.051^‡

0.937 ± 0.045^‡

Linear regression

0.804 ± 0.095

0.770 ± 0.118

0.779 ± 0.112

20% MVC

Model

0.943 ± 0.048^†

0.982 ± 0.012^‡

0.933 ± 0.050^‡

Linear regression

0.724 ± 0.173

0.716 ± 0.180

0.688 ± 0.196

50% MVC

Model

0.919 ± 0.052^‡

0.900 ± 0.092^‡

0.882 ± 0.115^‡

Linear regression

0.563 ± 0.214

0.537 ± 0.207

0.598 ± 0.190