Daniel Memmert

Daniel Memmert
Deutsche Sporthochschule Köln | DSHS · Institut für Trainingswissenschaft und Sportinformatik

Prof. Dr.

About

427
Publications
367,159
Reads
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7,011
Citations
Introduction
DFG Section Psychology/ Computer Science, Frontier (Excellence-Cluster of the DFG), BISP, DAAD, ERASMUS, RISE; EXIST Industry (e.g., BASF, SAP, MLP, Wild), Sport Companies (DFB, DTTB, Fußball-Bundesliga) According to a publicly accessible database of the world's top 100,000 scientists (https://data.mendeley.com/datasets/btchxktzyw/2), he ranks first in Germany in the field of "Sport Science".
Additional affiliations
March 2017 - present
Deutsche Sporthochschule Köln
Position
  • Geschäftsführender Institutsleiter
March 2009 - February 2017
Deutsche Sporthochschule Köln
Position
  • Institutsleiter
June 2007 - July 2007
University of Illinois, Urbana-Champaign
Position
  • visiting researcher (DAAD grant)

Publications

Publications (427)
Article
Full-text available
Data-related analysis in football increasingly benefits from Big Data approaches and machine learning methods. One relevant application of data analysis in football is forecasting, which relies on understanding and accurately modelling the process of a match. The present paper tackles two neglected facets of forecasting in football: Forecasts on th...
Article
In this study, 13,176 balls bowled by international level fast bowlers were analysed in order to investigate the relationship between the types of delivery and their effectiveness. The results of Chi-Squared analyses revealed significant associations between the type of delivery and runs conceded (p < 0.001) as well as wickets taken (p < 0.001). Se...
Article
Full-text available
Far-reaching decisions in organizations often rely on sophisticated methods of data analysis. However, data availability is not always given in complex real-world systems, and even available data may not fully reflect all the underlying processes. In these cases, artificial data can help shed light on pitfalls in decision making, and gain insights...
Preprint
Full-text available
The present work introduces floodlight, an open source Python package built to support and automate team sport data analysis. It is specifically designed for the scientific analysis of spatiotemporal tracking data, event data, and game codes in disciplines such as match and performance analysis, exercise physiology, training science, and collective...
Article
Full-text available
Analyzing tactical patterns in invasion games using multi-agent spatiotemporal data is a challenging task at the intersection of computer and sports science. A fundamental yet understudied problem in this area is finding an optimal data representation for processing athlete trajectories using machine learning algorithms. In the present work, we add...
Article
Globally, countries are faced with healthcare challenges that vary from one to the next. While health service delivery challenges are more often seen in countries with a very high HumanDevelopment Index (HDI), inefficient healthcare intervention challenges attract more attention in those with a low HDI. Health systems and infrastructure interventio...
Article
Full-text available
Sprinting is often seen in a variety of sports. Focusing one’s attention externally before sprinting has been demonstrated to boost sprint performance. The present study aimed to systematically review previous findings on the impact of external focus (EF), in comparison to internal focus (IF), on sprint performance. A literature search was conducte...
Book
Enge Fußballspiele und knappe Titelkämpfe werden nur selten durch technische Fähigkeiten von Spielern oder taktische Maßnahmen ihrer Trainer entschieden. Die bedeutsamsten Impulse kommen aus einem Bereich, der oft erwähnt wird, aber nur schwer greifbar ist: Große Champions sprechen nach besonderen Siegen eher über mentale Stärken, Persönlichkeitsme...
Article
The purpose of this study was to develop and test models of scanning activity in football. Gibson's ecological approach of visual perception and exploratory activity provided the theoretical framework for the models. The video-based data analysis consisted of 17 selected matches and 239 players of the Union of European Football Associations (UEFA)...
Article
Wayfinding skills decay in old age, more so for wayfinding in an allocentric than an egocentric reference frame. This study investigates whether wayfinding deficits of schoolchildren mimic those of older adults. Schoolchildren were tested on two wayfinding tasks: one could only be mastered in an allocentric, and the other only in an egocentric refe...
Article
Conscious perception often fails when an object appears unexpectedly and our attention is focused elsewhere (inattentional blindness). While various factors have been identified that modulate the likelihood of this failure of awareness, the semantic value of facial emotional expression of the unexpected stimulus is not clear. A total of 457 partici...
Article
The present study aimed to analyse the playing surface area, dispersion and distance covered of professional football teams comparing the pre-lockdown and the post- lockdown periods. Positional and match physical demands data were collected from all matches played in the First Spanish Division (n = 760) during season 2019/2020. Pre-lockdown (1st -...
Article
Introduction: Electromyostimulation is an additional training stimulus to voluntary muscle activation, which was previously used for rehabilitation purposes only. However, its use has increasingly been shown to be able to optimize sports performance. The aim of this systematic review was to examine the effects of EMS training on physiological dete...
Article
Full-text available
Although human perception has evolved into a potent and efficient system, we still fall prey to astonishing failures of awareness as we miss an unexpected object in our direct view when our attention is engaged elsewhere (inattentional blindness). While specific types of value of the unexpected object have been identified to modulate the likelihood...
Article
Full-text available
Key Performance Indicators (KPIs) have been investigated, validated and applied in multitude of sports for recruiting, coaching, opponent, self-analysis etc. Although a wide variety of in game performance indicators have been used as KPIs, they lack sports specific context. With the introduction of artificial intelligence and machine learning (AI/M...
Article
Sports psychology and kinesiology research focused on executive functions in the last ten years as cognitive functions could be one of the smallest adjustments possible in high-level athletes. We examined the connection of sports experience, (relative-) age effects, and physical maturity on the executive functions in male youth soccer players (N =...
Article
Full-text available
Scrutinizing public opinion is one of the central goals of science as the divergence between public opinion and scientific evidence can have negative consequences. The present study aims to further investigate the alleged English ‘penalty curse’ and determine if it can be linked to the prevalent stereotype of the ‘English goalkeeper problem’. We an...
Article
Full-text available
Two highly relevant aspects of football, namely forecasting of results and performance analysis by means of performance indicators, are combined in the present study by analysing the value of in-play information in terms of event and positional data in forecasting the further course of football matches. Event and positional data from 50 matches, in...
Article
Full-text available
With the rising amount of data in the sports and health sectors, a plethora of applications using big data mining have become possible. Multiple frameworks have been proposed to mine, store, preprocess, and analyze physiological vitals data using artificial intelligence and machine learning algorithms. Comparatively, less research has been done to...
Article
Full-text available
This study applied multiple machine learning algorithms to classify the performance levels of professional goalkeepers (GK). Technical performances of GK's competing in the elite divisions of England, Spain, Germany, and France were analysed in order to determine which factors distinguish elite GK's from sub-elite GK's. A total of (n = 14,671) play...
Book
Das Buch Handballspiele werden im KOpf entschieden vereint neueste wissenschaftliche Erkenntnisse und praktische Übungsformen um dieses meist ungenutzte Potenzial auszuschöpfen und die kognitiven Fähigkeiten zu verbessern.
Article
Full-text available
This study explored footballers’ tactical behaviours, based on their position data, as an effect of two defending formations, 4-4-2 and 5-3-2, using an experimental approach. Sixty-nine youth footballers participated in this 11-versus-11 study, performing 72 trials of attack-versus-defence. Players’ position data were tracked using a local position...
Preprint
Full-text available
Computer-aided support and analysis are becoming increasingly important in the modern world of sports. The scouting of potential prospective players, performance as well as match analysis, and the monitoring of training programs rely more and more on data-driven technologies to ensure success. Therefore, many approaches require large amounts of dat...
Article
Full-text available
Objectives This study investigated the relationship of executive functions and physical abilities in youth and adult elite soccer players.Design and methodsIn all, 172 elite soccer players (12–34 years of age) performed a computer-based test battery assessing multiple-object tracking, working memory capacity, cognitive flexibility, and inhibition....
Article
Full-text available
Referees play a central role in every sport. Particularly at national level, referees must meet ever higher demands due to increasing professionalisation. While cognitive and conditional aspects have already been investigated intensively, personality traits of handball referees have so far only received little attention. In addition to a profound u...
Article
Full-text available
The present research attempted to extend prior research that showed that thin-slices of pre-performance nonverbal behavior (NVB) of professional darts players gives valid information to observers about subsequent performance tendencies. Specifically, we investigated what kind of nonverbal cues were associated with success and informed thin-slice ra...
Article
Full-text available
Fouling in soccer has been studied from an ethical standpoint as a measure of aggression. However, there is limited research related to fouling for performance. The present study investigated fouling as a factor influencing performance in European soccer leagues. Out of possession fouls (FPGNorm), yellow cards (YCFNorm), and their ratio (YCPFPG)...
Preprint
Full-text available
The automatic detection of events in complex sports games like soccer and handball using positional or video data is of large interest in research and industry. One requirement is a fundamental understanding of underlying concepts, i.e., events that occur on the pitch. Previous work often deals only with so-called low-level events based on well-def...
Article
Our guest for this article was Dr. Daniel Memmert, Professor and Executive Head of the Institute of Exercise Training and Sport Informatics at the German Sport University Cologne, Cologne (Germany). A lifelong sports player and enthusiast, Memmert’s research is at the intersection of human movement science (cognition and motor activity), sport psyc...
Article
Previous studies investigating running distance in high performance soccer have led to contradictory evidence, potentially due to ignoring contextual information during match phases. The present study therefore examined the relationship between running performance and goal scoring in a football match for a standardised score line. In a sample of 30...
Article
Full-text available
Zusammenfassung Spielmanipulation stellt heutzutage eine der größten Bedrohungen für die Integrität des Sports dar, da sie zu einem Vertrauensverlust in die Fairness des Wettbewerbs führt. Als Reaktion auf Vorfälle in der Vergangenheit kommen im deutschen Sport deshalb zunehmend Bemühungen auf, Präventionsmaßnahmen zu entwickeln und durchzuführen....
Article
Full-text available
The aims of this investigation were to determine if ageing effects were present in elite international level cricket. Ball-by-ball data were analysed for 96 bowlers in the 50-Over World Cup 2019. Bowlers were categorised into 1 of 3 age groups GROUP 1 (18-24), GROUP 2 (25-31) and GROUP 3 (32+). Ordinal Logistic Regressions (OLR) and Multinomial Log...
Article
Technical performances of teams competing in the professional second divisions of England, Germany and France were analysed over five seasons in order to determine which factors influence the chances of promotion to the elite leagues. A total of 11,032 team-match observations were analysed via a series of logistical regressions. The results reveale...
Article
The purpose of this study was to analyse the scanning behaviour of elite youth football players across different playing positions and age groups during high-level matches. Data was obtained by filming the 2018 UEFA European U17 and U19 Championship semifinals and finals. A total of 53 outfield players from the four teams that reached the finals we...
Article
Full-text available
After the great success of the Women’s World Cup in 2019, several platforms have started identifying the reasons for gender inequality in European football. Even though these inequalities emerge from a variety of key aspects in the modern sport, we focused on the game and evaluated the main differential features of European male and female football...
Article
Performance analysis in football predominantly focuses on systematic contributions to success, thus neglecting the role of randomness. The present paper pursues a direct approach to quantify and analyse randomness in football by identifying random influences in the goal scoring process. The dataset includes all matches from the seasons 12/13 to 18/...
Conference Paper
Full-text available
The purpose o fthe present study was to investigate the use of a 60-degree-overhanging systemboard to increase the bouldering ability level, the sport-specific finger and upper body strength, and local muscular resistance.
Presentation
Full-text available
The purpose of the study was to investigate how non-experienced high school students perceive various short-term bouldering regimen.
Article
Full-text available
The aim of this study was to analyse footballers’ tactical behaviours from their position data, as an effect of two contrasting pressing strategies, high-press defending and deep-defending, using a trial-based experimental approach. Sixty-nine youth footballers participated in this 11 versus 11 study, performing 72 trials of attack versus defence,...
Article
Full-text available
The purpose of this study was to investigate whether novice, intermediate, and advanced bouldering athletes would differ in their decision-making abilities and to what extent distinct problem-solving tactics would affect the athletes’ bouldering performances. Seventy-seven male bouldering athletes participated in a multi-experimental study with the...
Preprint
Full-text available
Esports offer a unique opportunity to conduct human performance studies, as they use modern hardware and software as an operation platform. Insights on gameplay and underlying processes may push the development of new and optimal practice methods. The aim of this study was to investigate performance indicators from in-game data to predict the outco...
Preprint
Full-text available
Scrutinizing public opinion is one of the central goals of science as the divergence between public opinion and scientific evidence can have negative consequences. The present study aimed to further investigate the alleged English ‘penalty curse’ and determine if it can be linked to the prevalent stereotype of the ‘English goalkeeper problem’. We a...
Article
Full-text available
Creativity is one of the key parts of expert performance in sport and other domains. The aim of this study was to determine the underlying perceptual and cognitive processes that underpin creative expert performance in the sport of soccer. Forty skilled adult soccer players participated. In the experimental task, they interacted with representative...
Article
Full-text available
The present paper investigates factors contributing to the home advantage, by using the exceptional opportunity to study professional football matches played in the absence of spectators due to the COVID-19 pandemic in 2020. More than 40,000 matches before and during the pandemic, including more than 1,000 professional matches without spectators ac...
Preprint
Full-text available
Objectives: The study’s aim was threefold: examine 1) the relation between executive functions and coach-rated evaluation of game intelligence; 2) the predictive value of cognitive and athletic performance parameters concerning playing time, and 3) injuries to analyze fundamental associations of soccer expertise across all ages. Design/Methods: A s...
Article
Full-text available
Creativity is an important source of success in soccer players. In order to be effective in soccer, unpredictable, sudden and at the same time creative (i.e., unique, original, and effective) ideas are required in situations with high time pressure. Accordingly, creative task performance in soccer should be primarily driven by rapid and automatic c...
Article
Full-text available
The present research attempted to test how skilled people are at predicting perceptual-motor performance of professional Darts players based on short observations of pre-performance nonverbal behavior. In four thin-slices experiments (total N = 490) we randomly sampled stimulus material from the 2017 World Championships of Darts showing short video...
Article
Full-text available
Visual attentional processes have been an important topic in psychological research for years. Over the last few decades, new methods have been developed, aiming to explore the characteristics of the focus of attention in more detail. Studies that applied the “Attention-Window Task” (AWT) quantified the maximum extent of the “Attention Window” (AW)...
Article
The aim of this study was to examine whether match physical output can be predicted from the workload applied in training by professional soccer players. Training and match load records from two professional soccer teams belonging to the Spanish First and Second Division were collected through GPS technology over a season (N ¼ 1678 and N ¼ 2441 rec...
Article
Full-text available
Visual and executive functions have been suggested to be crucial in high-demanding team sports. Consequently, the interest in evaluating training possibilities of these functions is relatively high. However, easily applicable training tools, as well as evidence of their efficacy, especially in the present group of age (i.e. 17–21 years) and perform...
Article
Conscious perception often fails when an object appears unexpectedly and our attention is focused elsewhere (inattentional blindness). While various factors have been identified as determinants of inattentional blindness, the influence of an unexpected object́s semantic value remains ambiguous. This is also true for the supposedly evolutionary mean...
Article
Full-text available
Introduction: Recognition and optimization of strategies in sport games is difficult in particular in case of team games, where a number of players are acting “independently” of each other. One way to improve the situation is to cluster the teams into a small number of tactical groups and to analyze the interaction of those groups. The aim of the s...
Article
The aims of this study were to analyse the physical responses of professional soccer players during training considering the contextual factors of match location, season period, and qual- ity of the opposition; and to establish prediction models of physical responses during training sessions. Training data was obtained from 30 professional soccer p...
Article
Full-text available
The present study uses a quasi-experimental design to investigate the impact of team preferences on the accuracy of offside judgments. In Experiments 1 and 2, supporters of two German soccer clubs (i.e., Borussia Dortmund and FC Schalke 04) judged offsides in artificial scenes from a match between the clubs. We expected that supporters of both club...
Article
Player substitutions are one of the main options for the coach to change tactical behavior of his team. Purpose: The present study therefore investigates the effect of player substitutions on tactical behavior in high-performance soccer using positional data. Method: The sample consisted of 659 substitutions from 234 matches played in the German Bu...
Article
Full-text available
During the past two decades, the interest in investigating the phenomenon of inattentional blindness strongly increased and resulted in a fraying of paradigms investigating this specific failure of awareness. We reviewed 129 full‐text articles containing 219 experiments for their design and methods to create awareness for the growing variety of ina...
Article
Full-text available
The aim of the present research was to test if the fine-tuning of skilled motor actions benefits from proximate previous actions via a visuomotor calibration process. In professional darts, each player cycles through different activities: three darts are thrown with a rather smooth sequence of movements, the darts are retrieved from the dartboard,...
Experiment Findings
Full-text available
The FIFA Women's World Cup (WM) 2019 in France was a milestone in the development of the sport of women's football. In addition to the organisation and the sporting achievements, it was above all the media and public interest in the event and the spectator response that marked the beginning of a new era and reopened the ever-discussed question of c...
Article
Full-text available
The use of technology has been proposed to improve decision-making in sport officials. The implementation of the video Assistant Referee (VAR) in association football is one example of how technology can be used to assist decision making, although its impact remains unknown. In 2195 competitive football matches across 13 countries, the VAR conducte...