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International University of Science and Technology aims to contribute to the advancement of science and technology by adopting clear, reproducible and reliable research outputs and applications; It is committed to the broad dissemination of information for the benefit of society and all its external stakeholders.


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Publication
Long-term effects of running exercises on natural grass, artificial turf, and synthetic surfaces on ground reaction force components in individuals with overpronated feet: A randomized controlled trial
(2024-04-01) Heidar, Sajedi; AmirAli Jafarnezhadgero; Shadi Eskandari; Valdeci Carlos Dionisio
Abstract Background Overpronated feet are associated with alteration of lower limb mechanics. Also, quantifying ground reaction force-related changes due to exercise on different surfaces is important for understanding the potential risk of injuries. Research question What are the long-term effects of running exercises on natural grass, artificial turf, and synthetic surfaces on ground reaction force components in individuals with overpronated feet? Methods Of 82 contacted individuals with overpronated feet aged 18–30, 22 were excluded because they did not meet inclusion criteria (20), and two declined to participate. Sixty individuals were included in randomization, the control (n = 15), hard court or synthetic surface (n = 15), natural grass (n = 15), and artificial turf (n = 15) groups. There was a sample loss of 8 individuals because of personal problems (2 in each group). The intervention groups performed running exercises on natural grass, artificial turf, and synthetic surfaces over eight weeks, three sessions per week. No training or test-related injuries were reported throughout the study. A force plate was embedded midway through the 18-running concrete path to collect ground reaction force data while running on stable ground before and after interventions. Results Findings demonstrated significant group-by-time interactions for vertical loading rate (p = 0.016, ETA=0.297). Post-hoc analyses showed increased loading rate amplitude in two natural grass and artificial turf groups (but not in the control and synthetic surface groups) post-intervention. Significance Running training on natural grass and artificial turf surfaces may place individuals with overpronated feet at a higher risk of injury while running on a stable surface.
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Muscle activation while running on the ground compared to artificial turf in males with pronated and supinated feet.
(2024-01) Jafarnezhadgero, AmirAli; Givi, Arezoo Madahi; Hamlabadi, Milad Piran; Sajedi, Heidar; Zago, Matteo; Heidar, Sajedi
Running on different surfaces, including natural and artificial surfaces, requires different gait mechanics, especially in individuals with foot deformity.
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