Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/22241
Title: 
Authors: 
Subjects: 
Prefabricated
Gait
Kinetic
Variability
Loading rate
Comfort
Issue Date: 
2020
Citation: 
Ng, J. W., Chong, L. J. Y., Pan, J. W., Lam, W. K., Ho, M., & Kong, P. W. (2020). Effects of foot orthosis on ground reaction forces and perception during short sprints in flat-footed athletes. Research in Sports Medicine, 29(1), 43-55. https://doi.org/10.1080/15438627.2020.1755673
Dataset: 
https://doi.org/10.25340/R4/W5H8FO
Abstract: 
Prefabricated foot orthosis (FO) is commonly worn for flat foot management. This study aimed to investigate the kinetic and perceptual effects of wearing prefabricated FO among flat-footed athletes during bouts of sprints. Twenty male sprint-based sports athletes who had flat foot bilaterally ran at three test speeds (5, 6, 7 m/s) under two conditions: prefabricated FO and sham FO. Ground reaction force (GRF) variables and subjective perceptions were recorded. Kinetic variability of GRF variables were computed to indicate step-to-step variance. Biomechanically, wearing prefabricated FOs increased vertical impact force (p = .005), loading rate (p = .001), and kinetic variability of peak propulsive force (p = .038) and loading rate (p = .019) during sprinting speeds across 5 to 7 m/s. Subjectively, prefabricated FO provided better arch support (p = .001) but resulted in reduced forefoot cushioning (p = .001), heel cushioning (p = .002), and overall comfort (p = .008).
Description: 
This is the final draft, after peer-review, of a manuscript published in Research in Sports Medicine. The published version is available online at https://doi.org/10.1080/15438627.2020.1755673
URI: 
ISSN: 
1543-8627 (print)
1543-8635 (online)
DOI: 
File Permission: 
Open
File Availability: 
With file
Appears in Collections:Journal Articles

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