Objectives: Children come in contact with athletic fields on a daily basis. How these fields are maintained may have an impact on children's potential exposure to pesticides and associated health effects.
Design And Sample: This is a cross-sectional, descriptive study that utilized a survey to assess playing field maintenance practices regarding the use of pesticides. Athletic fields (N = 101) in Maryland were stratified by population density and randomly selected.
Measures: A survey was administered to field managers (n = 33) to assess maintenance practices, including the use of pesticides. Analysis included descriptive statistics and generalized estimating equations.
Results: Managers of 66 fields (65.3%) reported applying pesticides, mainly herbicides (57.4%). Managers of urban and suburban fields were less likely to apply pesticides than managers of rural fields. Combined cultivation practice was also a significant predictor of increased pesticide use.
Conclusions: The use of pesticides on athletic fields presents many possible health hazards. Results indicate that there is a significant risk of exposure to pesticide for children engaged in sports activities. Given that children are also often concurrently exposed to pesticides as food residues and from home pest management, we need to examine opportunities to reduce their exposures. Both policy and practice questions are raised.
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http://dx.doi.org/10.1111/j.1525-1446.2012.01016.x | DOI Listing |
Sci Rep
December 2024
College of Sports, Beihua University, Jilin, 132000, China.
In order to eliminate the impact of camera viewpoint factors and human skeleton differences on the action similarity evaluation and to address the issue of human action similarity evaluation under different viewpoints, a method based on deep metric learning is proposed in this article. The method trains an automatic encoder-decoder deep neural network model by means of a homemade synthetic dataset, which maps the 2D human skeletal key point sequence samples extracted from motion videos into three potential low-dimensional dense spaces. Action feature vectors independent of camera viewpoint and human skeleton structure are extracted in the low-dimensional dense spaces, and motion similarity metrics are performed based on these features, thereby effectively eliminating the effects of camera viewpoint and human skeleton size differences on motion similarity evaluation.
View Article and Find Full Text PDFSports (Basel)
December 2024
Frank Pettrone Center for Sports Performance, George Mason University, Fairfax, VA 22030, USA.
External (EL) and internal (IL) load are commonly used methods used to quantify training load in team sports. Playing time and playing position may influence the training loads for specific athletes throughout a season. The purpose of the current study was to evaluate the effect of athlete playing status and individual in-season practices on EL and IL across a collegiate women's basketball season.
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December 2024
Department of Physical Education and Sports, Faculty of Education and Sport Sciences, University of Granada, Melilla Campus, ES-52071 Melilla, Spain.
Background: The evolution of women's football over the past three decades has been remarkable in terms of development, visibility, and acceptance, transforming into a discipline with growing popularity and professionalization. Significant advancements in gender equality and global visibility have occurred, and the combination of emerging talent, increasing commercial interest, and institutional support will continue to drive the growth and consolidation of women's football worldwide.
Methods: The purpose of this study was to present a bibliometric analysis of articles on the evolution of women's football in terms of scientific production as well as its causes and motivations over the past 30 years (1992-2024).
Sports (Basel)
November 2024
International College of Football, Tongji University, No.1239, Siping Road, Yangpu, Shanghai 200092, China.
Heading is a key skill in soccer, and it is few investigated in females. Research on heading focused mostly on males and on young players. Data on females' soccer players are sparse and it is difficult to draw firm conclusions.
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November 2024
Department of Health and Sport Sciences, South East Technological University, Kilkenny Road Campus, R93 V960 Carlow, Ireland.
The aim of this study was to compare the acute effect of three cluster set (CS) intra-set rest intervals (15 s, 30 s, and 45 s) on mechanical performance measures during a flywheel resistance training session. Twelve amateur male field sport athletes attended three training measurement sessions (separated by 14 days of wash-out), consisting of four sets of nine repetitions (as cluster-blocks: 3 + 3 + 3), using a 0.050 kg·m inertial load.
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