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Muscle contributions to propelling the body upward differ between skipping and running.
J Biomech
January 2025
Walker Department of Mechanical Engineering, The University of Texas at Austin Austin TX USA.
Skipping represents a training alternative to running due to its lower knee contact forces and higher whole-body metabolic cost. The increased metabolic cost of skipping is associated with a higher vertical center-of-mass (COM) displacement during the support and flight phases of the skipping hop compared to running. However, skipping has lower muscle force impulses than running.
View Article and Find Full Text PDFMechanism and Characterization of Bicomponent-Filler-Reinforced Natural Rubber Latex Composites: Experiment and Molecular Dynamics (MD).
Molecules
January 2025
Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650032, China.
The incorporation of reinforcing fillers into natural rubber latex (NR) to achieve superior elasticity and mechanical properties has been widely applied across various fields. However, the tendency of reinforcing fillers to agglomerate within NR limits their potential applications. In this study, multi-walled carbon nanotube (MWCNT)-silica (SiO)/NR composites were prepared using a solution blending method, aiming to enhance the performance of NR composites through the synergistic effects of dual-component fillers.
View Article and Find Full Text PDF[Application of dual chamber round tissue expander in immediate breast reconstruction].
Beijing Da Xue Xue Bao Yi Xue Ban
February 2025
Department of Plastic Surgery, Peking University Third Hospital, Beijing 100191, China.
Objective: To explore the application value of dual chamber round tissue expander in immediate breast reconstruction.
Methods: Sixteen patients, who had been provided immediate tissue expander/implant two-stage breast reconstruction using dual chamber round tissue expander in our hospital from March 2022 to October 2023, were involved in this study, and the relevant information was analyzed retrospectively. The overall design of the expander is a round shape, consisting of two equally divided semi-circular chambers.
Neural connectivity underlying core language functions.
Brain Lang
January 2025
Department of Veterans Affairs Rehabilitation Research and Development Brain Rehabilitation Research Center at the Malcom Randall VA Medical Center, Gainesville, FL 32608, USA; University of Florida Department of Neurology, Gainesville, FL 32610, USA; Neurology Service, North Florida/South GeorgiaUSA Veterans Health System and Department of Neurology, University of Florida, Gainesville, FL 32608, USA. Electronic address:
Introduction: Although many white matter tracts underlying language functions have been identified, even in aggregate they do not provide a sufficiently detailed and expansive picture to enable us to fully understand the computational processes that might underly language production and comprehension. We employed diffusion tensor tractography (DTT) with a tensor distribution model to more extensively explore the white matter tracts supporting core language functions. Our study was guided by hypotheses stemming largely from the aphasia literature.
View Article and Find Full Text PDFThe effect of prosthetic alignment on lower limb kinetics in people with a transtibial bone-anchored prosthesis: An experimental within-subject study.
Gait Posture
January 2025
Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam and Amsterdam Movement Sciences, Amsterdam, the Netherlands; Department of Research and Development, Military Rehabilitation Centre Aardenburg, Doorn, the Netherlands.
Background: The alignment of a bone-anchored prosthesis has consequences for the external moments around the residual joints and implant, and these external moments can lead to serious negative long-term effects. A clear understanding of the relationship between transtibial prosthetic alignment and external joint and implant moment for bone-anchored prosthetic users is still lacking.
Research Question: What is the effect of systematic frontal plane prosthetic alignment changes on lower limb external joint moments in people with a transtibial bone-anchored prosthesis?
Methods: Participants underwent gait analysis on an instrumented dual belt treadmill.
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