International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

Design and Development of Orthoptic Footwear for Individuals with Flat Feet

Abstract

Flat foot, is a medical condition characterized by a flatter-than-normal medial longitudinal arch (MLA), causing the entire sole of the foot to make close or direct contact with the ground surface. Studies indicate a prevalence of flat foot in the adult population ranging from 13.6% to 26.62%, resulting in foot pain and a diminished quality of life. Orthotic shoes present one treatment method for flat feet. This research aims to analyze the correlation between the arch index and the rear angle of the foot in individuals with flat feet, as well as to design orthotic shoes and insoles. The methodology involved 5 female students with an arch index greater than 0.26, measured through digital sole prints, and the rear angle of the foot assessed using a goniometer. Insole molding design utilized Rhinoceros software and was 3D printed. The insoles were crafted from materials comprising 90% silicone rubber, 10% talc, and 4% hardener of the total. The results indicated that all subjects exhibited flat feet, as evidenced by a non- significant reduction in the eversion angle at the rear corner of the foot. In conclusion, there exists a correlation between the arch index and eversion angle in flat foot measurements. Additionally, orthotic shoes and insoles can be customized based on 3D scanning results, offering effective treatment and comfort for individuals with flat feet.

Country : Indonesia

1 Dwi Basuki Wibowo2 Agus Suprihanto3 Gunawan Dwi Haryadi4 Ojo Kurdi5 Ilham Fakhri Farhani

  1. Mechanical Engineering, Diponegoro University, Semarang, Indonesia
  2. Mechanical Engineering, Diponegoro University, Semarang, Indonesia
  3. Mechanical Engineering, Diponegoro University, Semarang, Indonesia
  4. Mechanical Engineering, Diponegoro University, Semarang, Indonesia
  5. Mechanical Engineering, Diponegoro University, Semarang, Indonesia

IRJIET, Volume 9, Issue 5, May 2025 pp. 233-238

doi.org/10.47001/IRJIET/2025.905031

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References

  1. Aenumulapalli A, Kulkarni MM, Gandotra AR. Prevalence of flexible flat foot in adults: A cross-sectional study. Journal of Clinical and Diagnostic Research 2017; 11:AC17–20. https://doi.org/10.7860/JCDR/2017/26566.10059.
  2. Dabholkar T, Agarwal A. Quality of Life in Adult Population with Flat Feet. International Journal of Health Sciences and Research (www.ijhsr.org) 2020; 10:193.
  3. Djaali W, Mighra BA. Pengeluaran Energi Selama Berjalan Pada Lengkung Kaki Datar (Flat Foot). Jurnal Ilmiah Kesehatan 2022; 14:264–9. https://doi.org/10.37012/jik.v14i2.1052.
  4. Alsuhaymi A, Almohammadi F, Alharbi O, Alawfi A, Olfat M, Alhazmi O, et al. Flatfoot among school-age children in Almadinah Almunawwarah: Prevalence and risk factors. Journal of Musculoskeletal Surgery and Research 2019; 3:204. https://doi.org/10.4103/jmsr.jmsr_89_18.
  5. Pita-fernandez S. Flat Foot in a Random Population and its Impact on Quality of Life and Functionality. JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH 2017; 11:22–7 https://doi.org/10.7860/JCDR/2017/24362.9697.
  6. Zhai JN, Qiu YS, Wang J. Effects of orthotic insoles on adults with flexible flatfoot under different walking conditions. J Phys Ther Sci 2016; 28:3078–83. https://doi.org/10.1589/jpts.28.3078.
  7. Cavanagh PR, Rodgers MM. The arch index: A useful measure from footprints. J Biomech 1987; 20:547–51. https://doi.org/10.1016/0021-9290(87)90255-7.
  8. Yung-Hui L, Wei-Hsien H. Effects of shoe inserts and heel height on foot pressure, impact force, and perceived comfort during walking. Appl Ergon 2005; 36:355–62. https://doi.org/10.1016/j.apergo.2004.11.001.
  9. Haryadi GD, Wibowo DB, Suprihanto A, Ariyanto M. Metode Pemindaian Digital Untuk Evaluasi Parameter Dimensi Dan Identifikasi Jenis Telapak Kaki. SID201803690, 2019.
  10. Haryadi GD, Wibowo DB, Suprihanto A, Ariyanto M. Metode Pemindaian Digital Untuk Evaluasi Parameter Dimensi Dan Identifikasi Jenis Telapak Kaki. SID201803690, 2019.
  11. Halabchi F, Mazaheri R, Mirshahi M, Abbasian L. Pediatric flexible flatfoot; clinical aspects and algorithmic approach. Iran J Pediatr 2013; 23:247–60.
  12. Hunt AE, Fahey AJ, Smith RM. Static measures of calcaneal deviation and arch angle as predictors of rearfoot motion during walking. Australian Journal of Physiotherapy 2000; 46:9–16. https://doi.org/10.1016/S0004- 9514(14)60309-3.
  13. Umardani Y, Wibowo DB, Caesarendra W, Suprihanto A, Pranoto KA. Calculation of the Rearfoot Angle Representing Flatfoot from Comparison to the Cavanagh Arch Index. Applied Sciences 2022; 12:6764. https://doi.org/10.3390/app12136764.

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