Spatiotemporal Evolution of Toddlers’ Regional Foot Pressure Distribution and Center of Pressure at Antero-Posterior Axis During Learning of Standing

Pourreza E., YARADANAKUL N. B., CENGİZ B. C., Camurdan A. D., ZİNNUROĞLU M., GÜRSES S.

Journal of Biomechanical Engineering, vol.146, no.1, 2024 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 146 Issue: 1
  • Publication Date: 2024
  • Doi Number: 10.1115/1.4063820
  • Journal Name: Journal of Biomechanical Engineering
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Biotechnology Research Abstracts, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Middle East Technical University Affiliated: Yes

Abstract

We investigated quiet stance of newly standing toddlers every three months (trimesters) of their second year of life. Their anteroposterior center-of-pressure (CoPx) velocity and centroidal frequency (CFREQ: 2.36 6 0.10 to 1.50 6 0.11 Hz) decreased over time. Besides, mean pressures revealed a potential role-sharing of foot regions in learning and control aspects of standing, with hindfoot carrying the highest (23.89 6 6.47 kPa) pressure while forefoot the lowest (10.26 6 2.51 kPa). The highest CFREQ of pressure signal was at midfoot. Through regional CoPx, forefoot has manifested the highest CFREQ (2.10 6 0.40 Hz) and 90% power frequency (90%PF), whereas hindfoot presented the lowest (CFREQ: 1.80 6 0.33 Hz). CFREQ and 90%PF of pressure and regional CoPx significantly decreased throughout the trimesters.