With over a decade of ministry experience in preaching and creative worship leadership, Sigmon entered the Homiletics and Liturgics PhD program at Vanderbilt University to further pursue her teaching and research interests. She was also selected as a fellow in Vanderbilt's unique Theology and Practice program-a program which seeks to form a generation of professors who are outstanding teachers of people preparing for ministry and groundbreaking scholars in practical theology. Sigmon's research interests include the role of lament in worship and preaching, as well as funding a method of homiletics that is organic, local, and sustainable in the mass-mediated homiletical age. The former interest is the basis of her dissertation currently in the works, Homilecclesiology: A post/human process homiletic of touch.
While at Vanderbilt, Sigmon has served as head pastor at Central Christian Church in Springfield, TN, served as an adjunct professor at Trevecca Nazarene University, and been a member of the Vanderbilt Divinity School Worship Committee. She and her husband Phill, also ordained in the DOC, are members of Vine Street Christian Church.