Clinical procedures encourage exercises and activities for Non-specific Low Back Pain (NSLBP). However, the relationship between the levels of physical exercise and their results is still unclear. Therefore, this review explains the relationships between the level of free living activity following Low Back Pain (LBP) and the levels of pain. It also describes impairment in patients with NSLBP. The paper used AMED, OVID, Biomed, CINAHL, Medline, Embase, Google scholar PubMed-National Library of Medicine, Proquest Directories, and manual reference lists searches to locate relevant literature. Only studies that examined statistical relationship between activities of free living Physical Activity (PA) in subjects with LBP and LBP outcome procedures were included in this review. Altogether, twelve studies, consisting of seven cohorts and five cross-sectional studies were included in this review. Out of the twelve studies, only one showed statistically significant relationship between increased leisure time activity and improved LBP outcomes. Another study reported reduced levels of sporting activity to be linked with higher levels of discomfort and disability. The rest (n=10) demonstrated no connection between activity levels and pain. The studies also demonstrated that NSLBP patient's activity levels are neither connected with nor predictive of the pain levels. This paper recommends prospective research to thoroughly determine the relationships between PA, LBP and activity levels.