The process of basic training, applied training, maintaining the performance of an observer

Losada, José Luís; Manolov, Rumen

doi:10.1007/s11135-014-9989-7

Cited by 65 publications

(56 citation statements)

References 12 publications

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“…There were four observers selected for data collection, three of them being PhDs in Physical Activity and Sports Sciences, national football coaches and with more than 5 years of experience in the use and application of observational methodology. In addition, one of the authors is a methodologist and expert in observational methodology, with years of experience and relevant publications in the field (Losada and Manolov, 2015). Prior to the coding process, the observers were trained during eight training sessions (Manolov and Losada, 2017.…”

Section: Methodsmentioning

confidence: 99%

The Influence of Match Status on Ball Possession in High Performance Women’s Football

et al. 2020

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The objective of this study was to examine the effect of the situational match status variable on the ball possession of the teams that participated in the 2015 FIFA Women's World Cup. The 52 games played during the championship have been collected, and 3,740 ball possessions made by the teams were analyzed. The teams have been divided into successful and unsuccessful. Three types of analysis have been carried out: a univariate analysis for both groups with the categorical and continuous variables selected; a bivariate analysis, using chi-square tests and the exact Fischer test; and finally, a multivariable technique such as the decision trees was incorporated. The available results show significant differences between the two groups considered. Specifically, there are significant differences between winning and losing teams in terms of match status. The results of the post hoc test have shown that unsuccessful teams make few ball possessions with a winning match status, most of the possessions are performed when they are losing. Instead, successful teams make more possessions when they are winning than when they are losing. Also, spend more time keeping the ball in their offensive zone, and completing a greater number of passes in it. The results of the decision tree identified that the unsuccessful teams have more ball possessions in forward and middle lines with a draw during the first half, while in the second, a large percentage of possessions are made with an unfavorable match status. Instead, the successful teams have more ball possessions in the first part with a draw, while in the second it happens with a favorable match status.

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Section: Methodsmentioning

confidence: 99%

The Influence of Match Status on Ball Possession in High Performance Women’s Football

et al. 2020

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“…Each observer was trained following the protocols described by Losada and Manolov [ 30 ]. To check the progress made by the observers in the use of the instrument, a set of data recorded at different moments by each observer was analyzed to study intraobserver reliability, with a minimum agreement level of 80% established [ 31 ].…”

Section: Methodsmentioning

confidence: 99%

Identification of Defensive Performance Factors in the 2010 FIFA World Cup South Africa

Casal

Andujar

Losada

et al. 2016

Sports

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The aim of this study was to determine the efficacy of defensive play in elite football, to identify variables associated with the direct recovery of ball possession, and to propose a model for predicting the success of defensive transitions. We analyzed 804 transitions in the final stages of the Fedération Internationale Football Association (FIFA) World Cup 2010, and investigated the following variables using univariate, bivariate, and multivariate analyses: duration of defensive transition, possession loss zone, position of players at the start and end of the defensive transitions, defensive organization, general defensive approach, time of the match, position of defense, zone in which the offensive transition ends, match status, and outcome of the defensive transition. We found that the defensive transitions started most frequently in the middle offensive zone (48.9%), with an organized defense set-up (98.8%), and were unsuccessful on 57.2% of occasions. The bivariate analysis showed that the variable most strongly associated with direct recovery of the possession of the ball (p = 0.018) is the area in which the ball is lost, and the multivariate analysis showed that the duration of the defensive transition can be used as a performance indicator, with transitions lasting between 0 and 15 s associated with a higher likelihood of directly recovering the ball. This work has allowed us to identify a pattern of tactical-strategic behavior with major probabilities of success in the defensive transitions. These results will be able to be used by coaches to improve the performance of their teams in this type of situation in the game.

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“…The collection of data was carried out by two observers possessing a degree in Sciences of Physical Activity and Sports with a specialization in "Racket Sports" and the federative title of "Tennis Coach Level II." Observer training was conducted according to the training protocols designed previously in several investigations (Losada and Manolov, 2014;Gamonales et al, 2018). The observers performed the following training steps: (a) theoretical training by studying the use and terminology of the observational instrument; (b) practical training with the calculation of intraobserver reliability, recording 20% of behaviors in a match; (c) practical training with the calculation of interobserver reliability, recording 33% of behaviors in another match, with 1 week apart; and (d) calculation of interobserver and intraobserver reliability values, which were found to be in line with other investigations of performance analysis (Gómez et al, 2018;Sainz de Baranda et al, 2019;Torres-Luque et al, 2019) in tennis (Losada et al, 2015;Fitzpatrick et al, 2018).…”

Section: Data Quality Controlmentioning

confidence: 99%

Effect of Modification Rules in Competition on Technical–Tactical Action in Young Tennis Players (Under-10)

et al. 2020

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Adapting competitions to young players' characteristics is an important pillar in the optimal teaching-learning process. The objective of the present study is to analyze the effect of modifying net height (from 0.91 to 0.80 m) and court dimensions (from 23.77 × 8.23 m to 18 × 8.23 m) for under-10 (U-10) tennis players on the following: (a) kinds of technical and tactical basic, situational, and special strokes; (b) tennis players' hitting area; (c) landing location of the serve; (d) ball landing location after the serve; (d) stroke effectiveness; and (e) rally length. The study design was quasiexperimental in nature, observing the fluctuation/change in technical-tactical variables of the tennis players when playing a "Tennis 10s Green Competition" (GC) with the current federative rules and a redesigned competition "Modified Competition" (MC) including altered net height and court dimensions based on small-sided games (SSGs) and equipment scaling. Twenty U-10 tennis players were studied (age of players = 9.46 ± 0.66 years, average weekly training in tennis = 2.90 ± 1.07 h, years of experience = 3.65 ± 1.53 years). The results showed that in MC, there was a greater technical-tactical variability compared with the GC in terms of the following: (a) greater service effectiveness; (b) more situational and special strokes; and (c) a more equitable change in the distribution of hitting and ball landing locations. The values of MC showed that the current adaptation rules and equipment in federated U-10 competitions might not be enough to improve the teaching-learning process under the comprehensive approach. The current competition for U-10 tennis players (stage green) should be redesigned, in order to build an optimal process of affordances to develop a multidimensional positive impact during this training stage.

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The process of basic training, applied training, maintaining the performance of an observer

Cited by 65 publications

References 12 publications

The Influence of Match Status on Ball Possession in High Performance Women’s Football

The Influence of Match Status on Ball Possession in High Performance Women’s Football

Identification of Defensive Performance Factors in the 2010 FIFA World Cup South Africa

Effect of Modification Rules in Competition on Technical–Tactical Action in Young Tennis Players (Under-10)

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