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http://dx.doi.org/10.1097/MCP.0000000000000661 | DOI Listing |
Front Sports Act Living
January 2025
Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, Netherlands.
Background: It is assumed that the tennis serve is performed according to the kinetic chain principle in which a proximal-to-distal sequence in peak angular velocities of subsequent body segments can be observed to reach high end point ball velocities. The aim of the present study was to investigate if the magnitude and (intersegmental) timing of peak angular velocities of body segments in professional tennis players are different between first and second serves and if they are associated with serve performance.
Methods: Eight (two female and six male) professional tennis players performed each 48 tennis serves on a tennis court.
Front Behav Neurosci
January 2025
Department of Neuroscience, Erasmus MC, Rotterdam, Netherlands.
Introduction: Physical exercise has repeatedly been reported to have advantageous effects on brain functions, including learning and memory formation. However, objective tools to measure such effects are often lacking. Eyeblink conditioning is a well-characterized method for studying the neural basis of associative learning.
View Article and Find Full Text PDFFront Sports Act Living
January 2025
Department of Sports, Physical Education and Outdoor Studies, Faculty of Humanities, Sports and Educational Sciences, University College of South-Eastern Norway, Bø, Norway.
This paper investigates the historical prohibition of skateboarding in Norway from 1977 to 1989, a unique instance of such a comprehensive ban globally. The study aims to understand the circumstances leading to this ban and the rationale behind it. Two primary explanations emerged around the ban: one from a bureaucratic perspective citing risk management, and the other from skateboarders seeing it as a regulation of their counterculture.
View Article and Find Full Text PDFPharmacol Res
January 2025
Department of Psychiatry, Dalhousie University, 5909 Veterans' Memorial Lane, 8th Floor, Abbie J. Lane Memorial Building, QEII Health Sciences Centre, Halifax, NS, B3H 2E2, Canada.
Over the past 20 years, levels of Δ9-tetrahydrocannabinol (THC) in cannabis have significantly increased, while levels of cannabidiol (CBD) have increased much less in comparison. Cannabis with higher THC potency (commonly assessed via THC:CBD ratio) may increase the risk for cannabis dependence and trigger/exacerbate anxiety. However, few studies of cannabis potency effects on cannabis dependence and anxiety have examined gender moderation.
View Article and Find Full Text PDFGait Posture
January 2025
Deparment of Rehabilitation Sciences, Division of Physical Therapy, Medical University of South Carolina, 151-B Rutledge Avenue, MSC 339, Charleston, SC 29425, United States of America.
Background: Posterior tibialis tendon dysfunction (PTTD) is a debilitating condition that leads to biomechanical changes, for which foot orthoses are often prescribed to attenuate. There is a need to improve the ability to predict these biomechanical alterations, determine the biomechanical effectiveness of foot orthoses, and anticipate their effects on individuals with PTTD during gait.
Research Question: Is the supination resistance test (SRT) reliable, and capable of predicting foot and ankle biomechanics, as well as the biomechanical effects of foot orthoses in individuals with PTTD during gait?
Methods: Twenty-one individuals with PTTD participated with supination resistance measured over two sessions.
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