STUDY ON THE INFLUENCE OF MIDSOLE HARDNESS AND SURFACE TYPE ON LOADING RATE IN HEEL-STRIKE RUNNERS

Authors

Zihan Yang, Fashion Accessory Art and Engineering College, Beijing Institute of Fashion TechnologyFollow
Chuyi Cui, Stanford University School of MedicineDepartment of Neurology and Neurological Sciences, Stanford University School of Medicine
Zhiyi Zheng, Anta (China) Co., Ltd. Anta Sports Science Laboratory
Songhua Yan, School of Biomedical Engineering, Capital Medical University
Hui Liu, Beijing Sport University
Feng Qu, Beijing Sport University
Kuan Zhang, School of Biomedical Engineering, Capital Medical University

Category

Equipment

Document Type

Paper

Abstract

High loading impact (LI) associated with heel strikes causes running injuries. This study aimed to investigate how midsole hardness and surface type affect LI. 12 runners ran at a fixed speed along an 18m runway with different midsole hardness (Asker C-45, 50, 55, 60) and on different surfaces (Rubber and Concrete). We conducted repeated-measures ANOVA on LI measures, and one-sample t-tests to compare VALR with a threshold value. Midsole hardness and surface type mainly affected VALR. Several combinations of midsole and surface reduced VALR below threshold: C-45 with both surfaces (R: 69.72±8.10 BW/s, C: 71.37±12.50 BW/s), and C-50 with a rubber surface (68.21±10.52 BW/s). Combining softer midsole and surface results in the greatest cushioning, which demonstrates the benefit of considering both factors in reducing running injuries.

Recommended Citation

Yang, Zihan; Cui, Chuyi; Zheng, Zhiyi; Yan, Songhua; Liu, Hui; Qu, Feng; and Zhang, Kuan (2024) "STUDY ON THE INFLUENCE OF MIDSOLE HARDNESS AND SURFACE TYPE ON LOADING RATE IN HEEL-STRIKE RUNNERS," ISBS Proceedings Archive: Vol. 42: Iss. 1, Article 29.
Available at: https://commons.nmu.edu/isbs/vol42/iss1/29