Sound Runner is an interdisciplinary collaborative endeavour that aims, through sound and music, to enhance the motivation for, and experience of, physical activity, exercise and running. It explores the influences of particular characteristics of sound on physical performance, and creates new sounds and music that arise out of runner experience. The current pilot study is developing interdisciplinary research methodologies between electroacoustic music composition and sport and exercise psychology in order to investigate bi-directional and interactive relationships between physical performance, sound creation and music listening while running. An underlying objective of the research is to encourage wider participation in sport and activity through the participant motivation that arises through these relationships. The project involves a creative practice-based researcher in electroacoustic music composition (Prof David Berezan, University of Manchester) and a researcher in sports science and psychology (Prof Costas Karageorghis, Brunel University).