Pengaruh Variasi Densitas Ethylene Vinyl Acetate (EVA) terhadap Kenyamanan Plantar Pressure Pemain Basket

Dadang  Mubin; Galih  Farhanto; Edi Irwanto

doi:10.46838/spr.v7i3.1314

Authors

Dadang Mubin Universitas PGRI Banyuwangi
Galih Farhanto Universitas PGRI Banyuwangi
Edi Irwanto Universitas PGRI Banyuwangi

DOI:

https://doi.org/10.46838/spr.v7i3.1314

Keywords:

EVA density, plantar pressure, basketball shoes, biomechanics, athletic comfort

Abstract

This study aims to analyze the effect of varying Ethylene Vinyl Acetate (EVA) density in basketball shoe midsoles on plantar pressure distribution and subjective comfort. Using a repeated measures design with 20 basketball players, three EVA density variations were tested: low (0.15 g/cm³), medium (0.25 g/cm³), and high (0.35 g/cm³). Plantar pressure data were collected using in-shoe sensors during vertical landing, cutting, and sprinting maneuvers. The results indicated that medium-density EVA provided the most even pressure distribution (205 ±pm 10 kPa at the heel) compared to low density, which caused lateral instability, or high density, which drastically increased peak pressure (245 ±pm 15 kPa). ANOVA analysis confirmed a significant influence of density on foot kinetic variables (p < 0.001). In conclusion, an EVA density of 0.25 g/cm³ is the optimal point for balancing shock absorption and responsive stability to mitigate the risk of injuries such as plantar fasciitis.

References

Alsenoy, K. Van, Linden, M. L. van der, Girard, O., & Santos, D. (2023). Increased footwear comfort is associated with improved running economy – a systematic review and meta-analysis. European Journal of Sport Science, 23(1), 121–133. https://doi.org/https://doi.org/10.1080/17461391.2021.1998642

Animasaun, I. (2025). Biomechanics of Jumping and Landing: The Significance in Athletes’ Performance. Journal of Advances in Medicine and Medical Research, 37(11), 113–121.

Chang, B. P., Kurkin, A., Kashcheev, A., Leong, K. F., Tok, A. ling Y., Lipik, V., & More, S. (2024). Enhancing dynamic impact performance and cushioning of EVA copolymer foams with thermoplastic elastomers. Materials Today Communications, 38. https://doi.org/https://doi.org/10.1016/j.mtcomm.2023.107888

Chen, H., Sun, D., Gao, L., Liu, X., & Zhang, M. (2023). Mechanical Behavior of Closed-Cell Ethylene-Vinyl Acetate Foam under Compression. Polymers (Basel), 16(1). https://doi.org/10.3390/polym16010034

Even-Tzur, N., Weisz, E., Hirsch-Falk, Y., & Gefen, A. (2006). Role of EVA viscoelastic properties in the protective performance of a sport shoe: Computational studies. Bio-Medical Materials and Engineering 16, 16(5), 289–299.

Fu, W., Fang, Y., Liu, D. M. S., Wang, L., Ren, S., & Liu, Y. (2015). Surface effects on in-shoe plantar pressure and tibial impact during running. Journal of Sport and Health Science, 4(4), 384–390. https://doi.org/https://doi.org/10.1016/j.jshs.2015.09.001

Gaudette, L. W., Ackerman, K. E., Bouxsein, M. L., Bruneau, M. M., Junior, J. R. de S., Garrahan, M., Gehman, S., Hughes, J. M., Outerleys, J., Willy, R. W., Davis, I. S., Popp, K. L., & Tenforde, A. S. (2025). Biomechanics associated with bone stress injury in athletes differ by proximal and distal anatomical locations: a cross-sectional analysis. BMJ Open Sp Ex Med, 11, 1–7. https://doi.org/doi:10.1136/bmjsem-2025-002469

Iglesias, M. E. L., Vallejo, R. B. de B., & Peña, D. P. (2012). Impact of Soft and Hard Insole Density on Postural Stability in Older Adults. Geriatric Nursing, 33(4), 264–271. https://doi.org/https://doi.org/10.1016/j.gerinurse.2012.01.007

Kyung, M. G., Lee, D.-O., Moon, K., Yoon, Y. S., & Lee, D. Y. (2024). Discrepancies in plantar pressure distribution between affected and unaffected sides in patients with plantar fasciitis. Journal of Orthopaedic Surgery, 32(2). https://doi.org/10.1177/10225536241258331

Lam, C., Kwan, J. S., Yuchen, S., Choi, C., & Ng, C. W. W. (2018). Performance of ethylene-vinyl acetate foam as cushioning material for rigid debris-resisting barriers. Landslides, 15(12). https://doi.org/DOI:10.1007/s10346-018-0987-z

Loganathan, T., Sasi, A., & Singh, R. (2024). Review of Biomechanics in Footwear Design and Development: An Exploration of Key Concepts and Innovations. International Journal of Innovative Science and Research Technology, 9(4), 653–657. https://doi.org/DOI:10.38124/ijisrt/IJISRT24APR807

Lopes, D., Ferreira, M. J., Russo, R., & Dias, J. M. (2014). Natural and synthetic rubber/waste – EVA (Ethylene-Vinyl Acetate) composites for sustainable application in the footwear industry. Journal of Cleaner Production. https://doi.org/DOI:10.1016/j.jclepro.2014.12.063

McClay, I. S., Robinson, J. R., Andriacchi, T. P., Frederick, E. C., Gross, T., Martin, P., Valiant, G., Williams, K. R., & Cavanagh, P. R. (1994). A Profile of Ground Reaction Forces in Professional Basketball. Journal of Applied Biomechanics, 10(3), 222–236.

Moore, I. S. (2016). Is There an Economical Running Technique? A Review of Modifiable Biomechanical Factors Affecting Running Economy. Sports Med, 46(6), 793–807. https://doi.org/doi: 10.1007/s40279-016-0474-4

Rao, S., Riskowski, J., & Hannan, M. T. (2012). Musculoskeletal Conditions of the Foot and Ankle: Assessments and Treatment Options. Best Pract Res Clin Rheumatol, 26(3). https://doi.org/10.1016/j.berh.2012.05.009

Safdar, M., Shah, K. H., Shahab, M., & Ghaffar, R. (2025). Biomechanical Adaptations in Foot Posture and Their Relation to Prevalence of Medial Tibial Stress Syndrome in Adolescent Cadets: A Cross-Sectional Study. JHWCR: Journal of Health, Wellness and Community Research, 3(10).

Shimazaki, Y., Nozu, S., & Inoue, T. (2016). Shock-absorption properties of functionally graded EVA laminates for footwear design. Polymer Testing, 54(2). https://doi.org/DOI:10.1016/j.polymertesting.2016.04.024

Singh, V., Rana, R. K., & Singhal, R. (2013). Analysis of repeated measurement data in the clinical trials. J Ayurveda Integr Med, 4(2), 77–81. https://doi.org/doi: 10.4103/0975-9476.113872

Subramaniam, S., Majumder, S., Faisal, A. I., & Deen, M. J. (2022). Insole-Based Systems for Health Monitoring: Current Solutions and Research Challenges. Sensors (Basel), 22(2), 438. https://doi.org/doi: 10.3390/s22020438

Sugiyono. (2017). Metode KuantitatiSugiyono. (2017). Metode Kuantitatif. In Metode Penelitian Kuantitatif, Kualitatif, dan R&D (pp. 13–19).f. In Metode Penelitian Kuantitatif, Kualitatif, dan R&D.

Yang, L., Liu, X., Liu, Y., Liu, J., Yan, S., & Fei, G. (2025). The impact of midsole hardness on joint angles and plantar loading during running at multiple running velocities. Front Public Health, 6(13). https://doi.org/doi: 10.3389/fpubh.2025.1641883

Yasa, G. A. S., & Hita, I. P. A. D. (2026). Pengaruh Permainan Bola Basket Terhadap Peningkatan Tinggi Badan. ANGGARA: Jurnal Pendidikan Olahraga Dan Kesehatan Rekreasi Dan Terapannya, 3(1), 26–31.

Zhang, X., Luo, Z., Wang, X., Yang, Y., Niu, J., & Fu, W. (2019). Shoe Cushioning Effects on Foot Loading and Comfort Perception during Typical Basketball Maneuvers. Applied Sciences, 9(18). https://doi.org/https://doi.org/10.3390/app9183893