This thesis examines the integration of somatic principles into Irish Step Dancing. The researcher conducted a twelve week case study that explored how utilizing the Centre-line Support System in training competitive Irish Step Dancers, through integrating Alexander Technique and Bartenieff Fundamentals of Total Body Connectivity can generate increased height and efficiency in jumping and an improvement in upper-body carriage, while longitudinally reducing the occurrence of over-use injuries. Research occurred between January and March 2012 in Tucson, Arizona and Dublin, Ireland. Additional research and reflection occurred in Belfast, Glasgow, and London, United Kingdom; Limerick, Cork, and Galway, Ireland; Amsterdam, The Netherlands; Chicago, Illinois; Phoenix, Arizona; and Los Angeles, California.