Objective: This article describes the derivation of strap lengths and adjustments to fall-arrest harnesses and the development of harness size configurations.
Background: Updated harness sizing configurations are needed to accommodate diverse populations in the current workforce.
Method: Three-dimensional torso anthropometric data from 243 women and 258 men were incorporated into eight validated equations to develop a cost-effective harness sizing plan and to define strap lengths.
Results: To met strap adjustable range goals and to accommodate 95% to 98% of the estimated population, two sizing options were identified.
Conclusion: Study outcomes suggest system improvement with three to four sizes for women and three to four sizes for men, on which the adjustment ranges of the torso straps were within 15 to 17 cm and within 20 to 23 cm on thigh and hip straps.
Application: This research provided harness sizing and cut-length information for harness design to reduce the risk of worker injury that results from poor fit or improper size selection.
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http://dx.doi.org/10.1177/0018720809346320 | DOI Listing |
Acta Biomater
December 2024
Department of Orthopedics, Shenzhen Hospital, Southern Medical University, Shenzhen 518000, PR China; The Third School of Clinical Medicine, Southern Medical University, Guangzhou 510000, PR China. Electronic address:
The periosteum, a highly specialized thin tissue, is instrumental in contributing to as much as 70% of early bone formation. Recognizing the periosteum's vital physiological roles, the fabrication of a biomimetic periosteum has risen as an auspicious strategy for addressing extensive bone defects. In the study, we obtained such biomimetic periosteum by utilizing periosteum-derived stem cells (PDSCs) spheroids.
View Article and Find Full Text PDFMed Image Anal
November 2024
Department of Radiology and Nuclear Medicine, St. Olav's University Hospital, Trondheim, Norway; Department of Circulation and Medical Imaging, NTNU - Norwegian University of Science and Technology, Trondheim, Norway.
In medical image analysis, the utilization of biophysical models for signal analysis offers valuable insights into the underlying tissue types and microstructural processes. In diffusion-weighted magnetic resonance imaging (DWI), a major challenge lies in accurately estimating model parameters from the acquired data due to the inherently low signal-to-noise ratio (SNR) of the signal measurements and the complexity of solving the ill-posed inverse problem. Conventional model fitting approaches treat individual voxels as independent.
View Article and Find Full Text PDFTissue Eng Part A
December 2024
Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Long bone and craniofacial bone fractures amount to an overwhelming expenditure for patients and health care systems each year. Overall, 5-10% of all bone fractures result in some form of delayed or nonunion fractures. Nonunions occur from insufficient mechanical stabilization or a compromised wound environment lacking in vasculature and progenitor cells.
View Article and Find Full Text PDFSmall
December 2024
Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
Intravesical instillation is essential for bladder cancer treatment, but current therapy suffers from brief drug retention and insufficient contact bladder contact. Nano- and micro-sized capsules-based drug delivery systems are expected to solve these problems, which, however, face challenges such as weak mucoadhesion, low biosafety, and processing complexity, limiting their scalable application. In this study, the power of plant pollen-derived microcapsules, sporopollenin exine capsules (SECs) is harnessed that are produced by sequentially defatting and acidolysis sunflower pollen, to passive load with pirarubicin and achieve biosafe and high-efficiency intravesical chemotherapy.
View Article and Find Full Text PDFMater Horiz
December 2024
Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University, Singapore 637616, Singapore.
Homojunction engineering holds promise for creating high-performance photocatalysts, yet significant challenges persist in establishing and modulating an effective junction interface. To tackle this, we designed and constructed a novel Janus homojunction photocatalyst by integrating two different forms of triazole-based carbon nitride (CN). In this design, super-sized, ultrathin nanosheets of carbon-rich CN grow epitaxially on a nitrogen-rich honeycomb network of CN, creating a tightly bound and extensive interfacial contact area.
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