In this podcast, Karsten Key and Olga Witkowska-Piłaszewicz discuss their respective papers:   Karsten Key's paper, 'Validation of a handheld smartphone markerless gait-analysis tool using an estimated groundline in horses', and Olga Witkowska-Piłaszewicz's paper,'Exercise-specific plasma proteomic signatures in racehorses: Candidates for training adaptation and peak loading monitoring'.