This file contains individual participant data for perceived mental fatigue (VAS1 and VAS2), rate of force development (RFD) across intervals (RFD₁₀₀, RFD₂₀₀, RFD₂₀₈₀) and peak ground reaction forces (GRF_Peak) under control (C1) and mental fatigue (C2) conditions.

It also includes EMG power spectral density (PSD) values for rectus femoris (RF) and medial gastrocnemius (MG) muscles, measured at five sequential 1-second intervals (0-1 s to 4-5 s) for both conditions. Columns provide descriptive and outcome variables for all participants. (XLSX)