Supplemental Material for JAPPL-00752-2025 - Motor unit adaptations contribute to the repeated bout effect following damaging resistance exercise

Supplemental information containing a figure showing the HDsEMG set up, further descriptions of variables analysed within the associated study, and select results of some repeated measures correlations.Supplemental Figure S1. An illustration showing placement of the 64-channel HDsEMG grid over a participant’s right tibialis anterior (TA). The single adhesive grid was placed over the TA in the presumed direction of muscle fibre pennation at approximately 34% between the tibial tuberosity and the intermalleolar line from the tibial tuberosity, over the TA innervation zone. The reference electrode was secured over the lateral malleolus.