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Exploring the Feasibility of Advanced Manufacturing for Mass Customization of Insoles in the Context of ESG

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Abstract

With the growing demand from the diabetic population and the advancement of lower limb biomechanics, the need for customized insoles for diabetic foot care and lower limb biomechanics correction is rapidly increasing. This has led to a digital transformation in the insole manufacturing process to achieve mass customization. This includes subtractive manufacturing and additive manufacturing. However, the environmental and social impacts of these processes have not been thoroughly assessed. Therefore, this study aims to analyze the ESG (Environmental, Social, and Governance) performance of existing digital processes compared to TP (traditional processes) and identify factors conducive to achieving both mass customization and sustainability. The results indicate that while NC (Numerical Control process) and 3DP (3D printing processes) benefit from digitization by reducing processing time (NC: 69%, 3DP: 38% of the labor hour needed for TP as 100%) and increasing the reliability of process, but NC is limited by energy consumption (TP: 0.39, NC: 0.9, 3DP: 0.32kWh) and manual grinding techniques. In the other hand, traditional process generates the most waste (Waste Weight Percentage: TP: 94.36%, CNC: 87.15%, 3DP) and requires the most processing space. The FFF (fused filament fabrication) type 3DP drastically shortens labor hour and technical barriers, providing an opportunity to change the service model of customized insoles from at least two visits to potentially just one. This makes the 3DP has the best chance to achieve the need of mass customization and the goal of ESG during the digital transformation. Not only the ESG goals but also the metamaterial ability to bring a better function to the insoles. In the future, by the introducing smart material into 4D printing, which can adapt to variable factors and change their structural characteristics, has the potential to enable a single pair of insoles to meet various usage scenarios. Moreover, the concept of 4D printing combined with sensors can elevate the application of insoles from medical usage for preventing or treating illness to daily usage forpredicting illness. This is a goal worth researching further to elevate worldwide healthiness.

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Data Availability

The data underlying this article are available in the article (The raw data of the ESG assessment in each process are collected by the authors of this article, same to pictures).

References

  1. Global foot orthotic insoles market size, share, growth analysis, by type (prefabricated, customized), by applications(medical, sport & athletics) - industry forecast 2022–2028. 2023, SkyQuest: global. https://www.giiresearch.com/report/sky1270782-global-foot-orthotic-insoles-market-size-share.html. Accessed 13 Feb 2024

  2. Sun, H., et al. (2022). IDF Diabetes Atlas: Global, regional and country-level diabetes prevalence estimates for 2021 and projections for 2045. Diabetes Research and Clinical Practice, 183, 109119. https://doi.org/10.1016/j.diabres.2021.109119

    Article  Google Scholar 

  3. Korada, H., et al. (2020). Effectiveness of customized insoles on maximum plantar pressure in diabetic foot syndrome: A systematic review. Diabetes & Metabolic Syndrome: Clinical Research & Reviews, 14(5), 1093–1099. https://doi.org/10.1016/j.dsx.2020.06.041

    Article  Google Scholar 

  4. Owings, T. M., et al. (2008). Custom therapeutic insoles based on both foot shape and plantar pressure measurement provide enhanced pressure relief. Diabetes Care, 31(5), 839–844. https://doi.org/10.2337/dc07-2288

    Article  Google Scholar 

  5. Lázaro-Martínez, J. L., et al. (2014). The best way to reduce reulcerations: If you understand biomechanics of the diabetic foot, you can do it. The International Journal of Lower Extremity Wounds, 13(4), 294–319. https://doi.org/10.1177/1534734614549417

    Article  Google Scholar 

  6. Lavie, C. J., et al. (2015). Exercise and the cardiovascular system: Clinical science and cardiovascular outcomes. Circulation Research, 117(2), 207–219. https://doi.org/10.5772/36259

    Article  Google Scholar 

  7. Almeheyawi, R. N., et al. (2021). Foot characteristics and mechanics in individuals with knee osteoarthritis: Systematic review and meta-analysis. Journal of Foot and Ankle Research, 14(1), 1–22. https://doi.org/10.1186/s13047-021-00462-y

    Article  Google Scholar 

  8. Braga, U. M., et al. (2019). Effects of medially wedged insoles on the biomechanics of the lower limbs of runners with excessive foot pronation and foot varus alignment. Gait & Posture, 74, 242–249. https://doi.org/10.1016/j.gaitpost.2019.09.023

    Article  Google Scholar 

  9. Costa, B. L., et al. (2021). Is there a dose-response of medial wedge insoles on lower limb biomechanics in people with pronated feet during walking and running? Gait & Posture, 90, 190–196. https://doi.org/10.1016/j.gaitpost.2021.09.163

    Article  Google Scholar 

  10. Jin, Y.-A., et al. (2015). Additive manufacturing of custom orthoses and prostheses–a review. Procedia CIRP, 36, 199–204. https://doi.org/10.1016/j.addma.2016.04.002

    Article  Google Scholar 

  11. Berry, C., Wang, H., & Hu, S. J. (2013). Product architecting for personalization. Journal of Manufacturing Systems, 32(3), 404–411. https://doi.org/10.1016/j.jmsy.2013.04.012

    Article  Google Scholar 

  12. Kwilinski, A., Lyulyov, O., & Pimonenko, T. (2023). Unlocking sustainable value through digital transformation: an examination of ESG performance. Information, 14(8), 444. https://doi.org/10.1002/9781119618287.ch4

    Article  Google Scholar 

  13. Huang, C.-N., Lee, M.-Y., & Chang, C.-C. (2011). Computer-aided design and manufacturing of customized insoles. IEEE Computer Graphics and Applications, 31(2), 74–79. https://doi.org/10.1109/MCG.2011.19

    Article  Google Scholar 

  14. Chen, R. K., et al. (2016). Additive manufacturing of custom orthoses and prostheses—A review. Additive manufacturing, 12, 77–89. https://doi.org/10.1016/j.addma.2016.04.002

    Article  Google Scholar 

  15. Ciobanu, O., Soydan, Y., & Hizal, S. (2012). Customized foot orthosis manufactured with 3D printers. in Proceedings of IMS. https://www.researchgate.net/profile/Selman-Hizal/publication/260686174_CUSTOMIZED_FOOT_ORTHOSIS_MANUFACTURED_WITH_3D_PRINTERS/links/00b4953201ed3d4311000000/CUSTOMIZED-FOOT-ORTHOSIS-MANUFACTURED-WITH-3D-PRINTERS.pdf. Accessed 13 Feb 2024

  16. Watasuntonpong, P., Pimsarn, M., & Tantrapiwat, A. (2019). Dynamic feed rate in multiple independent spindles CNC milling machine for orthotic insole manufacturing. International Journal of Innovative Computing, Information Control, 15, 2149–2163. https://doi.org/10.24507/ijicic.15.06.2149

    Article  Google Scholar 

  17. Surmen, K., Ortes, F., & Arslan, Y. Z. (2016). Design and production of subject specific insole using reverse engineering and 3D printing technology. International Journal of Science and Engineering Invention, 5(12), 11–15. https://www.academia.edu/download/51174911/C05120301115.pdf. Accessed 13 Feb 2024

  18. Yildiz, K., et al. (2021). Triad of foot deformities and its conservative treatment: With a 3D customized insole. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 235(7): 780-791.https://doi.org/10.1177/09544119211006528

  19. Anggoro, P., et al. (2022). Optimisation of cutting parameters of new material orthotic insole using a Taguchi and response surface methodology approach. Alexandria Engineering Journal, 61(5), 3613–3632. https://doi.org/10.1016/j.aej.2021.08.083

    Article  Google Scholar 

  20. Xu, R., et al. (2019). Comparative study of the effects of customized 3D printed insole and prefabricated insole on plantar pressure and comfort in patients with symptomatic flatfoot. Medical Science Monitor: International Medical Journal of Experimental and Clinical Research, 25, 3510. https://doi.org/10.12659/MSM.916975

    Article  Google Scholar 

  21. Hsu, C.Y., et al. (2022). Biomechanical analysis of the flatfoot with different 3D-printed insoles on the lower extremities. Bioengineering (Basel), 9(10). https://doi.org/10.3390/bioengineering9100563

  22. Chen, T., Tian, M., & Wang, X. (2021). A novel porous structural design of the orthotic insole for diabetic foot. In 2021 International Conference on Computer, Control and Robotics (ICCCR). https://doi.org/10.1109/ICCCR49711.2021.9349389

  23. Yarwindran, M., Ibrahim, M., & Raveverma, P. (2017). The feasibility study on fabrication customized orthotic insole using fused deposition modelling (FDM). In AIP Conference Proceedings. AIP Publishing. https://doi.org/10.1063/1.4981142

  24. Tang, Y., et al. (2021). Data-driven design of customized porous lattice sole fabricated by additive manufacturing. Procedia Manufacturing, 53, 318–326. https://doi.org/10.1016/j.promfg.2021.06.035

    Article  Google Scholar 

  25. Telfer, S., et al. (2017). Virtually optimized insoles for offloading the diabetic foot: A randomized crossover study. Journal of Biomechanics, 60, 157–161. https://doi.org/10.1016/j.jbiomech.2017.06.028

    Article  Google Scholar 

  26. Geiger, F., et al. (2023). Efficient computer-based method for adjusting the stiffness of subject-specific 3D-printed insoles during walking. Applied Sciences, 13(6), 3854. https://doi.org/10.1016/j.foot.2019.01.009

    Article  Google Scholar 

  27. Kumar, K. R., Vinothkumar, P., & Soms, N. (2023). Investigation on the development of custom foot insole using soft polylactic acid by fused deposition modelling technique. Journal of Materials Engineering and Performance, 32(4), 1790–1796. https://doi.org/10.1007/s11665-022-07208-2

    Article  Google Scholar 

  28. Li, J., et al. (2020). Parametric modeling and performance analysis of a personalized insole based on 3D scanning and selective laser sintering. International Journal of Computer Integrated Manufacturing, 33(9), 936–945. https://doi.org/10.1080/0951192X.2020.1815849

    Article  Google Scholar 

  29. Hudak, Y. F., et al. (2022). A novel workflow to fabricate a patient-specific 3D printed accommodative foot orthosis with personalized latticed metamaterial. Medical Engineering & Physics, 104, 103802. https://doi.org/10.1016/j.medengphy.2022.103802

    Article  Google Scholar 

  30. Ren, L., et al. (2023). Stiffness-tunable and self-sensing integrated soft machines based on 4D printed conductive shape memory composites. Materials & Design, 228, 111851. https://doi.org/10.1016/j.matdes.2023.111851

    Article  Google Scholar 

  31. LaleganiDezaki, M., & Bodaghi, M. (2023). A review of recent manufacturing technologies for sustainable soft actuators. International Journal of Precision Engineering and Manufacturing-Green Technology, 10(6), 1661–1710. https://doi.org/10.1007/s40684-023-00533-4

    Article  Google Scholar 

  32. Kim, H.-G., et al. (2023). Additively manufactured mechanical metamaterial‐based pressure sensor with tunable sensing properties for stance and motion analysis. Advanced Engineering Materials, 2201499. https://doi.org/10.1002/adem.202201499

  33. Fekiri, C., et al. (2022). Multi-material additive fabrication of a carbon nanotube-based flexible tactile sensor. International Journal of Precision Engineering and Manufacturing, 23(4), 453–458. https://doi.org/10.1007/s12541-022-00632-3

    Article  Google Scholar 

  34. Gao, D., et al. (2021). Strain rate effect on mechanical properties of the 3D-printed metamaterial foams with tunable negative Poisson’s ratio. Frontiers in Materials, 8, 712500. https://doi.org/10.3389/fmats.2021.712500

    Article  Google Scholar 

  35. Leung, M.S.-h, et al. (2022). 3D printed auxetic heel pads for patients with diabetic mellitus. Computers in Biology and Medicine, 146, 105582. https://doi.org/10.1016/j.compbiomed.2022.105582

    Article  Google Scholar 

  36. Rico-Baeza, G., et al. (2023). Additively manufactured foot insoles using body-centered cubic (BCC) and triply periodic minimal surface (TPMS) cellular structures. Applied Sciences, 13(23), 12665. https://doi.org/10.3390/app132312665

    Article  Google Scholar 

  37. Jerin, W., et al. (2023). A design optimization framework for 3D printed lattice structures. International Journal of Precision Engineering and Manufacturing, 1, 145–156. https://doi.org/10.57062/ijpem-st.2023.0059

    Article  Google Scholar 

  38. Srivastava, V., & Gaur, H. (2020). Revolutionary development in orthopedic insole by additive manufacturing. Journal of Critical Reviews, 7, 1943–1947. https://www.jcreview.com/admin/Uploads/Files/61b3b1ba1fba07.14496813.pdf. Accessed 13 Feb 2024

  39. Mereday, C., Dolan, C. M., & Lusskin, R. (1972). Evaluation of the University of California biomechanics laboratory shoe insert in" flexible" pes planus. Clinical Orthopaedics and Related Research (1976-2007), 82, 45–58. https://doi.org/10.1097/00003086-197201000-00006

    Article  Google Scholar 

  40. Taoyuan General Hospital, M.o.H.a.W. (2021). ESG report of Taoyuan general hospital, ministry of health and welfare. 4. https://www.tygh.mohw.gov.tw/?url=dWZpbGUvNTgvZmIxMzY2Njk1N2MwYWQ1NDU3ODhjYjYwODFkMTg0ODIucGRmLDc1&aid=down. Accessed 13 Feb 2024

  41. Moyer, J. (2023). ESG metric variance and methodology standardization. https://scholars.unh.edu/cgi/viewcontent.cgi?article=1751&context=honors. Accessed 13 Feb 2024

  42. Li, T.-T., et al. (2021). ESG: Research progress and future prospects. Sustainability, 13(21), 11663. https://doi.org/10.33693/2223-0092-2022-12-2-60-66

    Article  Google Scholar 

  43. Salles, A. S., & Gyi, D. E. (2012). The specification of personalised insoles using additive manufacturing. Work, 41(Suppl 1), 1771–1774. https://doi.org/10.3233/WOR-2012-0383-1771

    Article  Google Scholar 

  44. Lee, Y.-C., Lin, G., & Wang, M.-J.J. (2014). Comparing 3D foot scanning with conventional measurement methods. Journal of foot and ankle research, 7, 1–10. https://doi.org/10.1186/s13047-014-0044-7

    Article  Google Scholar 

  45. da Silva Barros, K., Zwolinski, P., & Mansur, A. I. (2017). Where do the environmental impacts of Additive Manufacturing come from? Case study of the use of 3d-printing to print orthotic insoles. in 12ème Congrès International de Génie Industriel (CIGI 2017). https://doi.org/10.1002/9781119846642.ch12

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Acknowledgements

We gratefully acknowledge the collaborative contributions of the Department of Assistive Resources at Taoyuan General Hospital, Cheng Chuan Prosthetics & Orthotics CO., Ltd. and Move &Treat Physical Therapy Clinic to the research presented in this paper.

Funding

This work was financially supported by the National Science and Technology Council, Taiwan, Republic of China (ROC) under grant number 108–2218-E-027 -003.

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Authors and Affiliations

  1. Institute of Mechatronic Engineering, National Taipei University of Technology, Taipei, Taiwan

    Jung Cheng

  2. Department of Mechanical Engineering, National Taipei University of Technology, Taipei, Taiwan

    Jia-Chang Wang

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Conceptualization, data collection, data curation, manuscript preparation, editing and analysis: Jung Cheng and Jia-Chang Wang; conceptualization, validation, supervision, and funding acquisition: Jia-Chang Wang.

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Correspondence to Jia-Chang Wang.

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Author Jung Cheng is the founder of Move &Treat Physical Therapy Clinic. The authors declare that they have no other conflict of interest.

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Cheng, J., Wang, JC. Exploring the Feasibility of Advanced Manufacturing for Mass Customization of Insoles in the Context of ESG. Int. J. of Precis. Eng. and Manuf.-Green Tech. (2024). https://doi.org/10.1007/s40684-024-00615-x

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