Background: There is a research report that lumbar mobilization for healthy people improves the knee extension angles and Q-angle related muscle activity (Q: quadriceps muscle). However, there is a lack of research on the effect of lumbar mobilization on gait variables such as cadence and gait speed, especially when mobilizing the central part of the lumbar spine from posterior to anterior. Objectives: To examine the effect of lumbar central PA mobilization in healthy people on cadence and gait speed. Design: Pilot study. Methods: There were 34 participants in this study. In the experimental group, lumbar posterior-anterior joint mobilization was performed once in Grade III-IV for 5 minutes, focusing on the segment with reduced movement. In the control group, lumbar posteroanterior mobilization was performed once in a total of Grade I-II for 5 minutes. To measure cadence and gait speed, STT-IWS and iSen System (San Sebastian, Spain) were used. Results: The comparison of cadence between groups, CG (Control group) increased cadence was about 6 more than EG (Experimental group) cadence, but it was not statistically significant. The gait speed of EG and CG was .30- .31, which was similar between the two groups, and the before and after values were also similar. There is no statistically significant difference Conclusion: The cadence and gait speed of the experimental group were not statistically significantly different than those of the placebo group.