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  • Author: Daniel C. Martinez x
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Daniel C. Martinez, Thomas G. Bowman and Richard J. Boergers

Facemask removal (FMR) is crucial for immediate treatment of helmeted athletes. The purpose of this study was to determine the effect of practice on the time required for lacrosse helmet FMR. Participants removed the facemasks of two helmet models (Cascade CPXR and Warrior Trojan) four times over four weeks with either a cordless screwdriver or pruner. We found a significant interaction for removal tool and time (p < .001). Participants became faster at FMR across the 4 weeks of data collection. We recommend three consecutive weeks of practice to improve FMR speed, though depending on FMR tool, an individual could benefit from additional sessions.

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Carlos Marta, Ana R. Alves, Pedro T. Esteves, Natalina Casanova, Daniel Marinho, Henrique P. Neiva, Roberto Aguado-Jimenez, Alicia M. Alonso-Martínez, Mikel Izquierdo and Mário C. Marques

Purpose: The aim of this study was to determine the effects of an 8-week program of resistance training (RT) or suspension training (ST) on explosive strength in prepubescent boys. Methods: Fifty-seven boys aged 10–11 years were assigned to 2 training groups, RT or ST or a control group (no training program). Boys trained twice weekly for 8 weeks. Results: A significant interaction was reported with a large (P < .001, ηp2=.463), medium (P < .001, ηp2=.395), and small effect sized (P ≤ .001, ηp2=.218) in the 1-kg ball throw, 3-kg ball throw, and time-at-20-m test, respectively. There was no significant interaction in the countermovement vertical jump or the standing long jump. Changes from preintervention to postintervention for the 1-kg ball throw were 5.94% and 5.82% for the ST and RT, respectively, and 8.82% and 8.14% in the 3-kg ball throw for the ST and RT, respectively. The improvement in the 20-m sprint was 1.19% for the ST and 2.33% for the RT. Conclusion: Traditional RT and ST seem to be effective methods for improving explosive strength in prepubescent boys. ST could be considered as an alternative modality to optimize explosive strength training in school-based programs.

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Silvia A. González, Maria A Castiblanco, Luis F. Arias-Gómez, Andrea Martinez-Ospina, Daniel D. Cohen, Gustavo A. Holguin, Adriana Almanza, Diana Marina Camargo Lemos, Jorge Enrique Correa-Bautista, Iván D. Escobar, Johnattan García, Rocio Gámez, Mauricio Garzon, Yaneth Herazo Beltrán, Hernan Hurtado, Oscar Lozano, Diana C. Páez, Robinson Ramírez-Vélez, Nubia Ruiz, Gustavo Tovar and Olga L. Sarmiento

Background:

Physical activity (PA) is vital to the holistic development of young people. Regular participation in PA is associated with substantial benefits for health, cognitive function, and social inclusion. Recognizing the potential of PA in the context of the current peace process in Colombia, the purpose of this article is to present the methodology and results of Colombia’s second Report Card on PA for children and youth.

Methods:

A group of experts on PA graded 14 PA indicators based on data from national surveys and policy documents.

Results:

National and departmental policy indicators received a grade of B, while organized sport participation, overweight, obesity, community influence, and nongovernment initiatives indicators received a grade of C. Overall PA levels, active transportation, sedentary behaviors, and school influence received a grade of D. Active play, low physical fitness, and family influence received an Incomplete grade.

Conclusions:

PA levels are low and sedentary behaviors are high in Colombian children and youth, with notable geographic differences. A broad policy framework translated into specific actions could provide unique opportunities to bridge the gap between knowledge and practice, and contribute to social integration goals in a postconflict setting.

Open access

Silvia A. González, Camilo A. Triana, Catalina Abaunza, Laura Aldana, Luis F. Arias-Gómez, Jhael Bermúdez, Diana Marina Camargo Lemos, Juan Camilo Cuya, Daniel D. Cohen, Jorge Enrique Correa-Bautista, Iván D. Escobar, Karen Lorena Fajardo, Johnattan García, Rocio Gámez, Julia Andrea Gómez, Yaneth Herazo Beltrán, Maria Jose Lizarazo, Oscar Lozano, Paola Andrea Martínez, Mercedes Mora, Diana C. Páez, Robinson Ramírez-Vélez, Maria Isabel Rodríguez, Nubia Ruiz, Gustavo Tovar, Julieth Pilar Uriza and Olga L. Sarmiento