**5. Conclusions**

Approximately 88% of the participants exhibited left and right foot symmetry for anteroposterior COP trajectory magnitude and direction. Asymmetry was noted in 67% of participants for mediolateral COP trajectory, in which COP displacement was observed along the lateral boundary of one foot and along the medial boundary of the other. In 82% of the samples, COP displacement followed an anteroposterior trajectory with a medial slant for left foot and lateral slant for right foot COP, whereas the remaining 12% showed other variations. These findings raise a number of questions concerning the etiology of asymmetric COP displacement trajectory between the right and left foot. Additional investigation is warranted to compare COP trajectories between asymptotic individuals and various populations (e.g., sedentary individuals, patients with foot or leg pathologies or athletes engaged in sports with strong lateralization) to better understand the causes of asymmetry and aid clinicians with the diagnosis of various posture-related pathologies.

**Author Contributions:** Conceptualization, J.S., J.V. and K.M.; methodology, K.M., W.B. and J.S.; software, W.B. and J.V.; validation, W.S., M.K. and J.S.; formal analysis, K.M. and J.S.; investigation, W.B., K.M. and J.S.; resources, J.S. and W.B.; data curation, W.B. and K.M.; writing—original draft preparation, J.S., J.V., K.M. and M.C.; writing—review and editing, J.S., J.V. and K.M.; visualization, J.S. and K.M., supervision, J.S. and K.M. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Acknowledgments:** The authors would like to acknowledge the involvement of the participants for their contribution to this study.

**Conflicts of Interest:** The authors have no conflict of interest to declare. The results do not constitute endorsement of any product or device. The authors would like to thank the sprinters who participated in this study.
