Development of an Effector-Specific Stop Signal Task with Higher Complexity: A Proof-of-Concept Study

The present study aims to develop and present a proof-of-concept for a stop signal task with effector-specificity and higher complexity. Sixteen participants performed a stop signal task developed for lower extremities using Fitlight System™. The effect of four different delays and two sessions on response time, stop signal reaction time and accuracy was assessed using two-way repeated-measures ANOVA. The reliability of outcomes was assessed using intraclass correlation coefficients. There was a significant main effect of delay on all outcomes and an interaction of delay and session on accuracy. The reliability of outcomes was substantial with dependency on delays. Our preliminary findings suggest the feasibility of stop signal principles within more complex movements and provide an example for the development of further tests in sports context.