Participants were also asked to consent to a more detailed quadriceps muscle assessment. Supramaximal stimulation of the femoral nerve was performed to generate quadriceps twitch responses (TwQ).28 Unpotentiated twitches were obtained using a 70 mmfigure-of-eight coil (Magstim Co, Whitland, UK) following 20 min of rest. A measure of volitional muscle activation during the QMVC, twitch interpolation (TwInt),29 was obtained by superimposition of a magnetically-induced twitch