FIGURE 9.

Linear regression between experimentally derived maximum isometric knee muscle torque measured from an isokinetic dynamometer and root‐mean‐squared errors of predicted isometric muscle torques in Generic elderly, Generic elderly optimised, Generic young, Generic young optimised and Subject‐specific models through knee extension (a–c) and knee flexion (d–f). Adjusted R ² values are shown alongside associated p values. *Statistical significance (p < 0.05). The statistically significant positive correlations seen in the Generic elderly, Generic elderly optimised and the Generic young models through knee flexion suggest that there is a trend for these models to accurately predict muscle torques within individuals with low muscle force capabilities, but these muscle data may not be suitable for simulating muscle functions stronger in individuals