Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The purpose of this study was to explore the immediate effects of running speed and midsole type on foot loading during heel-toe running. Fifteen healthy male college students were required to complete 3 running trials on an indoor 45-m tartan runway at 4 different speeds (3, 4, 5, and 6 m/s) using 2 different running footwear types (engineering thermoplastic polyurethane elastomer, polyurethane elastomer; and ethylene vinyl acetate, vinyl acetate). The ground reaction force and plantar pressure data were quantified. Significant speed effects were detected both in ground reaction force and plantar pressure-related data (P < .05). Vertical average loading rate was significantly less, and time to first peak occurred later for the polyurethane elastomer compared with vinyl acetate footwear (P < .05). The peak pressure of the heel, medial forefoot, central forefoot, lateral forefoot, and big toe was significantly less when subjects wore a polyurethane elastomer than vinyl acetate footwear (P < .05). Overall, our results suggested that, compared with the vinyl acetate footwear, the special polyurethane elastomer footwear that is adhered with thousands of polyurethane elastomer granules was effective at reducing the mechanical impact on the foot.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1123/jab.2019-0236 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Preparation and Properties of Polyurethane@TPECNPy-2 Acidochromic Micro/Nanofibrous Membranes.
Luminescence
September 2025
School of Textile Science and Engineering, Wuyi University, Jiangmen, Guangdong, China.
Acidochromic fluorescent membranes have garnered significant research interest owing to their potential in real-time environmental monitoring and smart sensing applications. However, the rational design of membranes to optimize their structure-property interplay for enhanced acidochromic performance remains further explored. Herein, we prepared various stimulus-responsive micro/nanofibrous membranes using electrospinning technology by incorporating a fluorescent small molecule (TPECNPy-2) with thermoplastic polyurethane (TPU) to obtain specific properties.
View Article and Find Full Text PDFMechanically Adaptive Cathode-Electrolyte Interphase via Dynamic Covalent Chemistry for Long-Life Ni-Rich Lithium Batteries.
J Am Chem Soc
September 2025
College of Chemistry, Huazhong Agricultural University, Wuhan 430070, China.
High-nickel LiNiCoMnO (NCM83) cathodes suffer from interfacial instability resulting from cathode-electrolyte reactions and anisotropic mechanical strain within secondary particles. Herein, we present a mechanically adaptive cathode-electrolyte interphase (CEI) engineered via a dynamic covalent network that features a supramolecular ion-conducting polyurethane ureido-pyrimidinone (SPU-UPy) elastomer. The dynamic network integrates cooperative hydrogen bonds and disulfide bonds and imparts exceptional mechanical resilience and autonomous self-healing capabilities that allow it to accommodate volume fluctuations without compromising structural integrity.
View Article and Find Full Text PDFA reconfigurable piezo-ionotropic polymer membrane for sustainable multi-resonance acoustic sensing.
Nat Commun
September 2025
Department of Chemical Engineering, Hanyang University, Seoul, Republic of Korea.
Sensorineural hearing loss is the most common form of deafness, typically resulting from the loss of sensory cells on the basilar membrane, which cannot regenerate and thus lose sensitivity to sound vibrations. Here, we report a reconfigurable piezo-ionotropic polymer membrane engineered for biomimetic sustainable multi-resonance acoustic sensing, offering exceptional sensitivity (530 kPa) and broadband frequency discrimination (20 Hz to 3300 Hz) while remaining resistant to "dying". The acoustic sensing capability is driven by an ion hitching-in cage effect intrinsic to the ion gel combined with fluorinated polyurethane.
View Article and Find Full Text PDFSilicone-Based Thermoplastic Elastomer with Stable Interface Interaction Based on Polymerization-Induced Phase Separation.
ACS Appl Mater Interfaces
August 2025
State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.
The rubber-plastic blend thermoplastic elastomers (TPEs) have become a significant research topic due to their excellent performance, combining the strength of plastics and the elasticity of rubbers. However, for highly incompatible systems such as silicone-based TPEs (Si-TPEs), achieving a finely tuned and controllable phase morphology remains a significant challenge. In this study, a thermoplastic polyurethane/silicone rubber thermoplastic elastomer (TPU/SiR TPE) was prepared via polymerization-induced phase separation (PIPS), with silicone rubber (SiR) as the dispersed phase and thermoplastic polyurethane (TPU) as the continuous phase, which possessed a fine phase morphology, flexible formulation, and performance tunability.
View Article and Find Full Text PDF[Preparation and application of conductive fiber coated with liquid metal].
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
August 2025
State Key Laboratory of New Textile Materials and Advanced Processing, Wuhan Textile University, Wuhan 430200, P. R. China.
Flexible conductive fibers have been widely applied in wearable flexible sensing. However, exposed wearable flexible sensors based on liquid metal (LM) are prone to abrasion and significant conductivity degradation. This study presented a high-sensitivity LM conductive fiber with integration of strain sensing, electrical heating, and thermochromic capabilities, which was fabricated by coating eutectic gallium-indium (EGaIn) onto spandex fibers modified with waterborne polyurethane (WPU), followed by thermal curing to form a protective polyurethane sheath.
View Article and Find Full Text PDF