Low back pain (LBP) is one of the most common reasons to visit a health care provider. Limited performance of the trunk musculature has been implicated in individuals with LBP. Several endurance tests for the trunk musculature recently have been described in the literature, and are finding increasingly common use in the clinic. An emerging literature has begun to address measurement properties for these tests; however, a systematic literature review has yet to be completed. The purpose of this project was to assess the current literature that documents the validity and reliability of clinical measurements for trunk muscle performance in individuals with and without LBP.