Alexander Ferrauti

Alexander Ferrauti
Ruhr-Universität Bochum | RUB · Training & Exercise Science

Professor

About

195
Publications
120,611
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3,483
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Publications

Publications (195)
Presentation
Full-text available
INTRODUCTION | In many sports, heart rate (HR) monitoring is used to quantify internal training load and to control and steer exercise intensity [1]. In swimming, the standard method of ECG-based HR recording is error-prone, as chest straps may slip during swimming and wall push-offs, especially when no swim suit is worn. The optical HR sensor Veri...
Conference Paper
Full-text available
Abstract to the oral presentation of my master thesis during the 27th annual ECSS 2022 in Sevilla, Spain.
Data
This project repository contains a documentation including data and analysis files to be able to reproduce all results presented in the main paper. https://doi.org/10.17605/OSF.IO/UP4HT
Data
Plot displays individual change scores in HRex following recovery (ΔRecovery, blue) and following training strain (ΔStrain, red) during the 12-week study period. https://doi.org/10.1371/journal.pone.0244412.s004
Data
Individual monitoring data are visualized for each player during the observational period. https://doi.org/10.1371/journal.pone.0244412.s002
Data
Plot displays individual HRex for recovered (blue) and strained (red) state during the 12-week study period. https://doi.org/10.1371/journal.pone.0244412.s003
Data
Individual data are summarized for recovered and strained state. Group data summarizes mean individual data. https://doi.org/10.1371/journal.pone.0244412.s005
Article
Movement speed is considered essential for success in elite tennis. The aim of the present study was to develop a model of movement speed components and quantify their age- and gender-related relevance for tennis performance. Physical testing data obtained from 1,434 nationally ranked junior squad tennis players were divided according to the age at...
Article
Full-text available
The aim of this study was to investigate whether recovery from eccentric squat exercise varies depending on age and to assess whether the use of a mixed-method recovery (MMR) consisting of cold water immersion and compression tights benefits recovery. Sixteen healthy and resistance-trained young (age, 22.1 ± 2.1 years; N = 8) and master male athlet...
Poster
Full-text available
Preprint: https://doi.org/10.31236/osf.io/e3tk4 Video: https://youtu.be/New_j7GDol4 INTRODUCTION: The nationwide implementation of physical performance test batteries for youth squad players can be valuable for compiling individual physical performance profiles based on age- and gender-specific norm values. This approach is frequently used for opt...
Article
Full-text available
Background: Viral diseases have different individual progressions and can lead to considerable risks/long-term consequences. Therefore, it is not suitable to give general recommendations on a time off from training for athletes. This case report aims to investigate the relevance of detecting heart rate (HR) and HR variability (HRV) during an orthos...
Article
Full-text available
Purpose: According to the official rules of the International Tennis Federation, players have to serve alternately from two different positions: the deuce (right, D) and the ad court (left, AD) side. This study aimed to compare body and ball kinematics of flat serves from both service sides. Methods: In a controlled, semi-court laboratory settin...
Chapter
Die gesundheitliche Bedeutung von Ausdauer und Ausdauertraining ergibt sich aus der epidemiologisch gesicherten weltweiten Abnahme der aeroben Kapazität im Kindesalter. Aus leistungsorientierter Sicht bildet eine gute Ausdauerleistung nicht nur für die klassischen Ausdauerdisziplinen, sondern auch für die Mannschafts- und Rückschlagspiele sowie für...
Article
Full-text available
This study used a single bout of repeated high-intensity sprint exercise as a variable to compare the performance and recovery time of handball players within a typical age range for team sport athletes. Two test groups (U20 players, n = 12, mean age = 18 years; senior players, n = 17, mean age = 27 years) were observed during and after their perfo...
Article
The aim of this study was to investigate the effects of a mixed-method recovery intervention (MMR) consisting of active recovery, stretching, cold-water immersion, and massage on physical, technical, physiological, and perceptual recovery during and after a five-day simulated tennis tournament. Nine competitive male tennis players (age, 24.6±4.2 ye...
Article
Full-text available
The purpose of this study was to investigate blood-based biomarkers and their regulation with regard to different recovery-stress states. A total of 35 male elite athletes (13 badminton, 22 soccer players) were recruited, and two venous blood samples were taken: one in a ‘recovered’ state (REC) after a minimum of one-day rest from exercise and anot...
Preprint
Full-text available
INTRODUCTION The nationwide implementation of physical performance test batteries for youth squad players can be valuable for compiling individual physical performance profiles based on age- and gender-specific norm values. This approach is frequently used for optimizing training prescription and thus athletic development. The aim of this study was...
Article
Full-text available
Postexercise recovery is a fundamental component for continuous performance enhancement. Due to physiological and morphological changes in aging and alterations in performance capacity, athletes of different ages may recover at different rates from physical exercise. Differences in body composition, physiological function, and exercise performance...
Article
Das Regenerationsmanagement im Leistungssport umfasst die Abschätzung von Ermüdungszustand und Regenerationsbedarf (Teil 1 dieser Beitragsreihe in Ausgabe 4/2021, S. 4-8) sowie den Einsatz regenerationsfördernder Maßnahmen (Teil 2 dieser Beitragsreihe). Zur Unterstützung der Regenerationsprozesse werden in der Sportpraxis verschiedene Regenerations...
Article
Full-text available
Das Regenerationsmanagement im Leistungssport umfasst die Abschätzung von Ermüdungszustand und Regenerationsbedarf (Teil 1 dieser Beitragsreihe) sowie den Einsatz regenerationsfördernder Maßnahmen (Teil 2 dieser Beitragsreihe). Die Erfassung des Regenerationsbedarfs erfolgt durch die Dokumentation der externen Trainings- und Wettkampfbelastung, der...
Article
Purpose: To identify whether the use of active recovery (ACT) the day after high-intensity interval training (HIIT) benefits recovery and to assess whether individual responses to ACT are repeatable. Methods: Eleven well-trained, male intermittent-sport athletes (age: 25.5 ± 1.8 y) completed 4 HIIT sessions, each separated by a 2-week washout pe...
Preprint
Full-text available
(Postprint) Purpose: To investigate short-term training and recovery-related effects on heart rate during a standardized submaximal running test. Methods: Ten elite badminton players (7 females and 3 males) were monitored during a 12-week training period in preparation for the World Championships. Exercise heart rate (HRex) and perceived exertion...
Article
Full-text available
Both daily demands as well as training and competition characteristics in sports canresult in a psychobiological state of mental fatigue leading to feelings of tiredness, lackof energy, an increased perception of effort, and performance decrements. Moreover,optimal performance will only be achievable if the balance between recovery and stressstates...
Article
Full-text available
PURPOSE. To investigate short-term training and recovery-related effects on heart rate during a standardized submaximal running test. METHODS. Ten elite badminton players (7 females and 3 males) were monitored during a 12-week training period in preparation for the World Championships. Exercise heart rate (HRex) and perceived exertion were measur...
Article
Full-text available
Objectives: Objectives were to examine subjective sleep quality and daytime sleepiness of the German ice hockey junior national team prior to the world championship to identify athletes of concern and areas of optimization with the intention of equally preventing injury and enhancing performance. Methods: Twenty-one athletes (Mage = 18.5 ± 0.6 yea...
Article
Purpose: Cold-water immersion is increasingly used by athletes to support performance recovery. Recently, however, indications have emerged suggesting that the regular use of cold-water immersion might be detrimental to strength training adaptation. Methods: In a randomized crossover design, 11 participants performed two 8-week training periods...
Poster
Full-text available
Poster Talk --- INTRODUCTION | Exercise intensity was described as a main determinant of acute changes in heart rate variability (HRV) following endurance-based exercise [1]. Yet, it remains unclear if (intensity-dependent) acute HRV patterns can be consistently observed in single athletes, due to a typically large day-to-day variability. We theref...
Article
Full-text available
Portable polysomnography (PSG) is a promising tool to assess sleep architecture and stages in athletes, yet there are hardly any research findings concerning comfort and practicability within the applied field. Thus, aim of this study was to examine to what extent self‐applied portable‐PSG has an influence on objective (measured via actigraphy) and...
Chapter
Die Trainingswissenschaft ist eine von mehreren sehr unterschiedlichen sportwissenschaftlichen Teildisziplinen. Sie zeichnet sich durch ihre interdisziplinäre Arbeitsweise, ihre Nähe zur Sportpraxis und eine anwendungsbezogene Forschungsperspektive aus. Die drei inhaltlichen Gegenstandsbereiche sind „Training und Trainingssteuerung“, „Leistung und...
Chapter
1886 wurde der deutsche Schwimmverband (DSV) in Berlin gegründet, welcher die fünf olympischen Sportarten Schwimmen, Freiwasserschwimmen, Wasserspringen, Wasserball und Synchronschwimmen repräsentiert. Seit den 1970er-Jahren ist der Schwimmsport zu einem festen Bestandteil im Bereich der sportwissenschaftlichen Forschung geworden und wird den Ausda...
Chapter
Der Mensch wird immer älter, und in den nächsten Jahrzehnten ist ein weiterer Anstieg der Lebenserwartung abzusehen. Dieser demografische Wandel stellt neue Anforderungen an die Trainingswissenschaft. Dabei gilt es, den Einfluss unterschiedlicher Trainings- und Bewegungsprogramme sowie verschiedener Sportarten auf Gesundheit und Leistung sowie den...
Chapter
Der Trainingsbegriff erscheint trivial. Eine inhaltliche Präzisierung des Gegenstandes ist jedoch notwendig, zumal der Trainerberuf hierdurch seine gesellschaftliche Legitimation erfährt. Im Sinne einer sehr offenen Auslegung findet Training im Kontext von Bewegung und Sport in zahlreichen Anwendungsfeldern statt. Diese schließen neben dem Leistung...
Chapter
Leistungssteuerung beinhaltet die zentralen Komponenten Wettkampfanalyse (und Wettkampfsteuerung), Leistungsdiagnostik und Trainingssteuerung. Alle Komponenten sind miteinander vernetzt und weisen jeweils eine langfristige und eine kurzfristige Perspektive auf. Im Bereich der Wettkampfanalyse existieren Verfahren verschiedener Komplexität zur Besch...
Chapter
Kraft ist eine elementare Grundlage für jede Bewegung des Menschen und somit fundamentale Basis sportlicher Handlungskompetenzen. Das vorliegende Kapitel liefert einen Überblick über Bedeutung und Erscheinungsformen der Kraft, über biologische Grundlagen des Krafttrainings, über Anpassungsvorgänge, Trainingsmethoden und Belastungsdosierung sowie üb...
Chapter
Die Ausdauer und das Ausdauertraining sind aus Sicht des Energiestoffwechsels und des kardiopulmonalen Systems für den Leistungs- und Gesundheitssport von höchster Bedeutung. Das Kapitel liefert einen Überblick über die Bedeutung und Erscheinungsformen der Ausdauer und über ausgewählte biologische Grundlagen zum Verständnis des Ausdauertrainings. H...
Chapter
Das Kinder- und Jugendtraining ist aus Sicht der Trainingswissenschaft für verschiedene Anwendungsfelder von hoher Relevanz. Diese beinhalten den Freizeit- und Gesundheitssport, den Schulsport, den Vereinssport sowie den Nachwuchsleistungssport und in diesem Zusammenhang die Bereiche der Talentidentifikation und Talentförderung. Empfehlungen für di...
Article
Background: This crossover study's objective was to investigate whether a cooling intervention during simulated tennis match play in the heat could affect players' performance, physiology, perception of effort, and well-being. Methods: Eight competitive male tennis players performed two testing sessions of 45-minute simulated tennis match play on...
Article
Current sport-scientific studies mostly neglect the assessment of sleep architecture, although the distribution of different sleep stages is considered an essential component influencing an athlete’s recovery and performance capabilities. A mobile, self-applied tool like the SOMNOwatch plus EEG might serve as an economical and time-friendly alterna...
Preprint
Our study aimed to examine athletics, training characteristics, and prevalence of musculoskeletal symptoms of male junior tennis Davis Cup players (DC) in comparison with their regional counterparts, as well as to evaluate the impact of age and performance level on training characteristics. Twelve junior DC (male) and two samples of regional squad...
Book
Full-text available
Einleitung. Das Interesse des Leistungssports am „Regenerationsmanagement“ (Kurzname des Projekts: REGman) ist ungebrochen, wie u. a. die Vielzahl internationaler Publikationen belegen. Ganz offenbar werden auf diesem Gebiet nach wie vor relevante Reserven im Hinblick auf die Leistungsoptimierung gesehen. Der erste 4-Jahres-Abschnitt von REGman I (...
Book
Dieses reichhaltig illustrierte Lehrbuch wendet sich an Studierende im Fach Sportwissenschaft sowie an Trainerinnen, Trainer und Auszubildende in sport- und fitnessbezogenen Berufen und dient diesen als ideale Prüfungsvorbereitung. Trainingswissenschaftliche Themen werden anschaulich, gut verständlich und praxisrelevant dargestellt. Auch interessie...
Article
Full-text available
Purpose: Despite indications of positive effects of sauna (SAU) interventions, effects on performance recovery are unknown. The aim of the current study was to investigate acute effects of SAU bathing after an intensive training session on recovery of swim performance. Methods: In total, 20 competitive swimmers and triathletes (3 female and 17 m...
Article
Full-text available
Despite the general consensus regarding the implementation of self-report measures in the training monitoring, there is a lack of research about their applicability and comprehensibility among developing athletes. However, this target group needs special considerations to manage the increasing training demands while maintaining health and performan...
Conference Paper
Einleitung In zwei separaten Studienarmen ermittelten wir die Effekte von hochintensivem Intervall-training (HIIT) und Krafttraining (KT) auf Herzfrequenz (HR) und vagale Herzfrequenzmo-dulation (HRV: Herzfrequenzvariabilität). Methodik 37 trainierte Sportler absolvierten während einer 4-tägigen Baselinephase, eines 6-tägigen Overreachings und ein...
Article
Full-text available
Badminton, squash, table tennis, and tennis are four of the most popular racquet sports. In recent years, modifications in rules, equipment, and athletes’ physical fitness have led to changes in match structure and therefore also in demands on athletes of these sports. This has caused a sudden rise in requests for scientific research, since insight...
Poster
Full-text available
Introduction Training monitoring with non-exhaustive exercise tests became popular in training research and practice [1]. In endurance sports, individualizing test protocols based on race performance data may represent a pragmatic alternative to standardized tests. Therefore, the purpose of this observational single-case study was to determine trai...
Article
Full-text available
Purpose: Individualized reference ranges for serum creatine kinase (CK) and urea are a promising tool for the assessment of recovery status in high-level endurance athletes. In this study, we investigated the application of this approach in racket sports, specifically for the monitoring of elite badminton players during the preparation for their wo...
Article
Full-text available
Objective: In two independent study arms, we determine the effects of strength training (ST) and high-intensity interval training (HIIT) overload on cardiac autonomic modulation by measuring heart rate (HR) and vagal heart rate variability (HRV). Methods: In the study, 37 well-trained athletes (ST: 7 female, 12 male; HIIT: 9 female, 9 male) were su...
Data
The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fphys.2019.00582/full#supplementary-material | Table 1.xlsx. Supplementary Tables. | Data Sheet 1.xlsx. Data Sheet. | Data Sheet 2.zip. Data analysis and statistical analysis. | Data Sheet 3.docx. Instructions heart rate recordin...
Data
Supplementary Figure 1. Standardized mean differences (d-diff) ... | Supplementary Figure 2. Correlations between performance and heart rate (variability) measures ... Strength Training ... | Supplementary Figure 3. Correlations between performance and heart rate (variability) measures ... HIIT ... | Supplementary Figure 4. Individual responses ......
Article
Both meticulously structured trainig routine as well as specific characteristics of various sports (e.g., swimming, shooting, modern pentathlon)with multiple competition bouts in a single day appear to be mentally demanding and may result in a state of mental fatigue. Due to these multidimensional demands, adequate training and competition recovery...
Article
Full-text available
Foam rolling is thought to improve muscular performance and flexibility as well as to alleviate muscle fatigue and soreness. For this reason, foam rolling has become a popular intervention in all kinds of sport settings used to increase the efficiency of training or competition preparation as well as to speed post-exercise recovery. The objective o...
Data
Table 2. Characteristics of the included studies on the effects of post-rolling.
Data
Table 1. Characteristics of the included studies on the effects of pre-rolling.
Article
Full-text available
Purpose To investigate the effects of different recovery strategies on fatigue markers following a prolonged running exercise. Methods 46 recreational male runners completed a half-marathon, followed by active recovery (ACT), cold water immersion (CWI), massage (MAS) or passive recovery (PAS). Countermovement jump height, muscle soreness and perce...
Data
Study data. Rec, recovery; CMJ, countermovement jump; Dm, muscle belly displacement; Tc, contraction time; DOMS, delayed onset muscle soreness; SRSS, short recovery and stress scale; OR, overall recovery; OS, overall stress; CK, creatine kinase; CRP, c-reactive protein; f-T, free-testosterone; IGF-1, insulin-like growth factor 1. (XLSX)
Conference Paper
Full-text available
Introduction Assessing changes in fatigue, fitness and (aerobic) performance with exercise heart rate (HRex) during submaximal, non-exhaustive tests became very popular in training research and practice. As HRex may decrease due to (acute) fatigue and/or (long-term) adaptation [1], contextualization and multivariate approaches are required for a va...
Presentation
Full-text available
Short-term training and recovery-related changes in exercise heart rate in elite badminton players. Using repeated measures to evaluate (reproducibility of) individual responses. [Slides and abstract available, priliminary analyses (further markers available, no trend correction, means and SDs not weighted for n of obervations)]
Article
Full-text available
Background: The relation between training load, especially internal load, and the recovery-stress state is of central importance for avoiding negative adaptations in high-performance sports like swimming. The aim of this study was to analyze the individual time-delayed linear effect relationship between training load and recovery-stress state with...
Article
Fett, J, Ulbricht, A, and Ferrauti, A. Impact of physical performance and anthropometric characteristics on serve velocity in elite junior tennis players. J Strength Cond Res XX(X): 000-000, 2018-This study aimed to investigate the impact of physical performance components and anthropometric characteristics on serve velocity (SV) in elite junior te...
Article
Full-text available
A comprehensive monitoring of fitness, fatigue, and performance is crucial for understanding an athlete's individual responses to training to optimize the scheduling of training and recovery strategies. Resting and exercise-related heart rate measures have received growing interest in recent decades and are considered potentially useful within mult...
Article
Full-text available
The aim of this study was to investigate the effect of two different exercise interventions in the morning on football-specific components of performance in the afternoon under conditions simulating a competition day. In the morning on 3 experimental days, 12 football players (age 24.1 ± 5.5 years) completed three different preload interventions th...
Article
Full-text available
Objective: High-intensity interval training (HIIT) can be extremely demanding and can consequently produce high blood lactate levels. Previous studies have shown that lactate is a potent metabolic stimulus, which is important for adaptation. Active recovery (ACT) after intensive exercise, however, enhances blood lactate removal in comparison with p...
Article
Zusammenfassung Massage, Eisbad oder Ausruhen – Es gibt viele beliebte Regenerationsmethoden. Sportler nutzen beispielsweise Sauna und Massagen als Erholung nach dem Wettkampf. Was ist effektiv? In einem Verbundprojekt untersuchten Sportwissenschaftler, wie sich unterschiedliche Erholungsmaßnahmen auf die Leistung der Sportler auswirken. Die Ergebn...
Chapter
Tennis requires a complex interaction of technical, tactical, psychological, and several physical components (i.e., strength, agility) and metabolic pathways (i.e., aerobic and anaerobic) [1] (Fig. 12.1). In order to achieve an optimum cost-benefit ratio of training input, goals and contents during physical conditioning must be defined according to...
Article
Full-text available
This study investigated whether the repeated use of an active recovery (ACT) program is beneficial for promoting recovery of muscle function during an intensive training phase in elite Olympic weightlifters. Using a crossover design, eight competitive weightlifters (7 male; 1 female) from the German national Olympic team participated in a two-day m...