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Ankle‐foot orthoses (AFOs) assist patients with gait impairment by correcting ankle and foot deformities, restoring mobility, reducing pain, and providing protection and immobilization. AFOs can beneficially manage various types of gait pathologies, including foot drop, crouch gait, equinus gait, and stiff knee gait. AFOs are produced in prefabricated or custom‐made forms in various designs. The selection criteria for the fabrication of an AFO are the duration of usage, the amount of applied force, the degree of axial loading, the patient’s skin condition, and the cost. The accessibility of diverse materials in the past century has greatly advanced orthoses. The ideal orthotic materials must be light, stiff, and strong, and are made of plastics, metals, polymer‐based composites, leather, or a hybrid of different materials. Deeper understanding of the materials employed in the fabrication of AFOs will lead to more advanced and efficient orthoses, which can improve patients’ ability to ambulate in the real world. The present review provides insight into the various materials utilized for the fabrication of AFOs and describes the benefits and challenges associated with these materials. An attempt has also been made to highlight typical gait pathologies and design concepts in response to these.This article is protected by copyright. All rights reserved.
Ankle‐foot orthoses (AFOs) assist patients with gait impairment by correcting ankle and foot deformities, restoring mobility, reducing pain, and providing protection and immobilization. AFOs can beneficially manage various types of gait pathologies, including foot drop, crouch gait, equinus gait, and stiff knee gait. AFOs are produced in prefabricated or custom‐made forms in various designs. The selection criteria for the fabrication of an AFO are the duration of usage, the amount of applied force, the degree of axial loading, the patient’s skin condition, and the cost. The accessibility of diverse materials in the past century has greatly advanced orthoses. The ideal orthotic materials must be light, stiff, and strong, and are made of plastics, metals, polymer‐based composites, leather, or a hybrid of different materials. Deeper understanding of the materials employed in the fabrication of AFOs will lead to more advanced and efficient orthoses, which can improve patients’ ability to ambulate in the real world. The present review provides insight into the various materials utilized for the fabrication of AFOs and describes the benefits and challenges associated with these materials. An attempt has also been made to highlight typical gait pathologies and design concepts in response to these.This article is protected by copyright. All rights reserved.
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Wearing surgical face masks for a long time has a number of physiologic and psychological consequences, as well as the potential to reduce work efficiency. Physical side effects of long-term usage of surgical masks include headaches, trouble breathing, acne, skin breakdown, rashes, and reduced memory. It also obstructs eyesight, communication, and thermal balance. The objective of this research was to investigate the effects of bacteria growth and type of bacteria morphology present on the face mask. Serial dilutions were used to calculate the concentration of microorganisms. As it would usually be impossible to actually count the number of microorganisms in a sample, the sample was diluted and plated to get a reasonable number of colonies to count. Since the dilution factor was known, the number of microorganisms Log CFU per mL was calculated. The CFU count results clarify the growth curve pattern of bacteria formed on agar plate surfaces and revealed some details of bacterial life after their adhesion onto surfaces in the presence of agar. This growth curve exhibited distinct phases: the lag phases, the exponential (log) phases, the stagnant phases and the dead phases. Gram staining and hanging drop method was used to identify the gram positive, gram negative and the bacteria morphology. This study provides insightful on the investigation of bacteria present on surgical face masks which is little available in literature.
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