Results 21 to 30 of about 860,469 (312)

Efficacy and manner of execution of the serve in top-level women's beach volleyball players

open access: yesRevista da Educação Física, 2020
The study of the manner of execution (technique, and spatial aspects) can provide useful information to understand the game dynamics in beach volleyball and to obtain references values for the analysis of the game and the establishment of training goals.
Ana B. López Martínez   +3 more
doaj   +1 more source

Tell me how much your opponent team runs and I will tell you how much you should run: A predictive model applied to Spanish high-level football

open access: yesBiology of Sport, 2023
The aim of this study was to predict a team’s accumulated distance (TotDisTea) and accumulated distance at > 21 km/h (TotDis21Tea) in the Spanish Football First Division.
Julen Castellano   +2 more
doaj   +1 more source

Development of the Effect of Video Assistant Referee Application on Football Parameters

open access: yesApplied Sciences, 2022
The Video Assistant Referee (VAR) application is a technological development that gives referees the chance to review their critical decisions. The current study aimed to determine the effect of the VAR system in international football organizations on ...
Hakan Buyukcelebi   +6 more
doaj   +1 more source

Birth outcomes following antiretroviral exposure during pregnancy: Initial results from a pregnancy exposure registry in South Africa

open access: yesSouthern African Journal of HIV Medicine, 2019
Background: In 2013, a pregnancy exposure registry and birth defects surveillance (PER/BDS) system was initiated in eThekwini District, KwaZulu-Natal (KZN), to assess the impact of antiretroviral treatment (ART) on birth outcomes. Objectives: At the end
Ushma C. Mehta   +13 more
doaj   +1 more source

First Offensive Shot in Elite Table Tennis

open access: yesInternational Journal of Racket Sports Science, 2021
At the (very) first shots in table tennis, players face a basic tactical decision: either return the ball short and passively or attack it with an offensive shot. In the first case, there is lower risk but no pressure for making the point, in the second
Michael Fuchs, Martin Lames
doaj   +1 more source

Match play performance characteristics that predict post-match creatine kinase responses in professional rugby union players [PDF]

open access: yes, 2014
Background: Rugby union players can take several days to fully recover from competition. Muscle damage induced during the match has a major role in player recovery; however the specific characteristics of match play that predict post-match muscle damage ...
Harrington, Bradley J   +25 more
core   +1 more source

Technical Analysis of 2007 and 2017 World Taekwondo Women and Men Championship Finals

open access: yesTürk Spor ve Egzersiz Dergisi, 2018
Purpose of this study is to compare the latest world championships with the old system and the latest world championship competitions with the new system, and to compare the competitions in two different systems by conducting activity and technical ...
Sevde Mavi Var
doaj   +1 more source

Salivary hormone concentrations and technical-tactical performance indicators in beach volleyball: Preliminary evidence

open access: yesFrontiers in Sports and Active Living, 2022
The present study aimed to investigate (i) differences in salivary testosterone and cortisol concentrations before, during, and after simulated beach volleyball match, depending on match outcome (winning vs.
Yago Costa   +7 more
doaj   +1 more source

The analysis of matched layers

open access: yesConfluentes Mathematici, 2011
A systematic analysis of matched layers is undertaken with special attention to better understand the remarkable method of Bérenger. We prove that the Bérenger and closely related layers define well-posed transmission problems in great generality.
Halpern, Laurence   +2 more
openaire   +2 more sources

Clustering Performances in Elite Basketball Matches According to the Anthropometric Features of the Line-ups Based on Big Data Technology

open access: yesFrontiers in Psychology, 2022
The aims of this study were: 1) to conduct a descriptive analysis of the anthropometric features of the line-ups of strong teams (top 16) in the 2019 FIBA Basketball World Cup; 2) to group the line-ups mentioned above into different clusters based on ...
Xiao Xu, Mingxin Zhang, Qing Yi
doaj   +1 more source

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