• EMG data are stored as (.csv) files, with three files per participant (one per speed), totalling 169 recordings. • Missing files include: S3_0.75, S3_1, S8_0.5, S11_1, S43_1, S50_0.5, S50_0.75, S50_1. • Files are named EMG_S[subjectID]_[speed]. Each file contains a timestamp column and 12 muscle activation columns (mean absolute value, volts): 1. Right tibialis anterior 2. Left tibialis anterior 3. Right vastus lateralis 4. Left vastus lateralis 5. Right rectus femoris 6. Left rectus femoris 7. Right gastrocnemius medial head 8. Left gastrocnemius medial head 9. Right semitendinosus 10. Left semitendinosus 11. Right gastrocnemius lateral head 12. Left gastrocnemius lateral head