Alexander Ferrauti

• Professor
• Head of Department at Ruhr University Bochum

The nine-year multicenter research project, titled REGman—Optimization of Training and Competition: Management of Regeneration in Elite Sports—aimed to advance the understanding of recovery management in sports and generate practical recommendations. In this article, we outline the overarching research program that links the specific research stran...

INTRODUCTION In swimming, the standard method of monitoring heart rate (HR) in practice is the palpation of the pulse for 10 seconds at the end of a training set. However, this method has an error of at least 6 bpm. A more accurate ECG-based method is to measure the HR with a chest strap. But also this method is error-prone as the strap slips often...

This study examined the effects of combined change of direction (CoD) and plyometric training on sand in basketball players’ jump, sprint, and CoD performances. In total, twenty-five male professional basketball players (age, 24.1 ± 4.2 years; height, 192.5 ± 8.0 cm; body mass, 92.6 ± 11.6 kg) participated in a pre-season intervention study over se...

Purpose: The aim of the present study was to analyze the impact of interval duration on training loads and technical skill performance in high performance badminton drills. Methods: On three experimental days, 19 internationally ranked players (13 male: 22.7 ± 3.8 years, 180 ± 6 cm, 71.5 ± 6.1 kg; 6 females: 20.4 ± 2.5 years, 168 ± 4 cm, 59.8 ± 6.0...

Objectives The present study aimed to assess the perception and change of mental and physical fatigue and to examine acute effects of mental recovery strategies in air rifle athletes across simulated competition days with two consecutive competition bouts. Design We conducted a randomized counterbalanced crossover study. Method 22 development air...

Purpose Static stretch training (SST) with long stretching durations seems to be sufficient to increase flexibility, maximum strength (MSt) and muscle thickness (MTh). However, changes in contraction properties and effects on muscle damage remain unclear. Consequently, the objective of the study was to investigate the effects of a 6-week self-perfo...

Purpose This study aimed to correlate sprint mechanical parameters (SMP) of a linear sprint (LS) and a tennis specific modified 505 (Tm505) change of direction (CoD) test obtained with a motorized resistance device (MRD) to the current tennis ranking position (RP). Methods 107 male and 86 female elite junior tennis players nationally ranked in the...

The ability for quick multidirectional accelerations is crucial for athletic performance in team and racquet sports. So far, there has been little research dedicated to different initial step patterns usually applied by players. Therefore, the present study investigated the kinematic characteristics and effectiveness of the following step patterns:...

Tennis match performance is often evaluated by a player's internal (heart rate) and external (match analytics) outcomes. Numerous factors could influence these outcomes, including the time of day, which may be advantageous or not depending on a player's chronotype. This study aimed to determine the influence time of day, chronotype and sleep–wake b...

Zusammenfassung. Der Athlete Sleep Behavior Questionnaire ist ein englischsprachiger Fragebogen zur Erhebung des individuellen Schlafverhaltens von Sportler_innen. Ziel dieser Studie war die Übersetzung des Athlete Sleep Behavior Questionnaire ins Deutsche sowie die wissenschaftliche Validierung dieser deutschen 18-Item-Version, dem Fragebogen zum...

Tennis players’ success relies on tennis skills, such as groundstrokes and serves, and physical attributes, such as strength, speed and endurance. This study aimed to determine if players’ tennis skills and physical attributes are influenced by time of day, chronotype or sleep–wake behaviour (SWB). Twelve male tennis players (age (years): 28.17 ± 7...

Recently an individualisation algorithm has been developed and shown to significantly improve the diagnostic accuracy of creatine kinase (CK) and urea in endurance sports and Badminton. In this study, the applicability and benefit of this algorithm was evaluated using repeated measures data from 161 professional German soccer players monitored duri...

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...

Abstract to the oral presentation of my master thesis during the 27th annual ECSS 2022 in Sevilla, Spain.

Talent identification often begins at the age of entry into a sport: namely, even under the age of 9 years old (U9). However, the success of such early talent identification is questionable. Therefore, the aim of this long-term retrospective study is to examine whether today’s more successful junior tennis players already differed from today’s less...

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

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

Individual monitoring data are visualized for each player during the observational period. https://doi.org/10.1371/journal.pone.0244412.s002

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

Individual data are summarized for recovered and strained state. Group data summarizes mean individual data. https://doi.org/10.1371/journal.pone.0244412.s005

https://doi.org/10.1371/journal.pone.0244412.s001

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 a...

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±2.1years; N=8) and master male athletes (a...

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...

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...

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 setting, 1...

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...

Featured Application Although the present study suggests that the effects of age on performance and recovery in team sports are smaller than initially assumed, the few existing age-related differences in recovery should, nevertheless, be taken seriously in order to optimally monitor the team players’ training stress, to prevent any injuries, and to...

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...

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...

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...

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...

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...

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...

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...

(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...

Both daily demands as well as training and competition characteristics in sports can result in a psychobiological state of mental fatigue leading to feelings of tiredness, lack of energy, an increased perception of effort, and performance decrements. Moreover, optimal performance will only be achievable if the balance between recovery and stress st...

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 measured...

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...

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 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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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 (...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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 ......

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...

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...

Table 2. Characteristics of the included studies on the effects of post-rolling.

Table 1. Characteristics of the included studies on the effects of pre-rolling.

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...

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)

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...

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)]

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...

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...

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...

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...

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...

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...

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...

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...

Tracking and predicting the performance of athletes is of great interest, not only in training science but also, increasingly, for serious hobbyists. The increasing availability and use of smart watches and fitness trackers means that abundant data is becoming available, and the interest to optimally use this data for performance tracking and train...

The aim of the study was to investigate the effects of wearing various levels of compression following repeated and exhausting sprint exercise on variables related to recovery. Twelve well-trained handball players performed three sessions of repeated and exhausting sprint exercise (30 × 30m). Directly after each session the participants wore tights...

Einleitung Ein Monitoring der Herzfrequenz (HR) und Herzfrequenzvariabilität (HRV) liefert nützliche Einblicke in die Trainingsreaktion des autonomen Nervensystems (ANS). Es wurden verschiedene Effektschwellenkonzepte und Methoden zur Datenbehandlung vorgeschlagen, ohne bislang wissenschaftlichen Konsens zu erreichen [1,2]. Ziel der Studie war der...

The aim of this paper was a) to analyse the intraindividual change and criterion sensitivity of the AcuteRecovery and Stress Scale (ARSS) and its abridged version the Short Recovery and Stress Scale (SRSS) inresponse to a 6-day microcycle of intensified strength training (STM) and high-intensity interval training(HIIT) in comparison with the change...

Introduction Monitoring the cardiac autonomic nervous system (ANS) using heart rate (HR) and heat rate variability (HRV) might give useful insights into athletes training response. Several methods for data treatment and practical thresholds had been suggested, without reaching scientific consensus, yet [1,2]. Aim of the study was to compare common...

Introduction Measuring heart rate at submaximal intensity (HRsubmax) is suggested to be of high value in monitoring training due to its time-saving implementation during warm-up [1]. Aim of the study was to evaluate whether HRsubmax monitoring is able to display changes in sportspecific endurance and perceived stress and recovery dynamics to inform...

Introduction Due to the different possibilities of monitoring, we investigated a multidimensional monitoring of physiological and perceptual responses in combination with performance markers. The aim of the study was to examine the effect of preseason conditioning on different monitoring parameters as well as the inter-correlations between markers....

Objective: Tensiomyography (TMG) is an indirect measure of a muscle's contractile properties and has the potential as a technique for detecting exercise-induced skeletal muscle fatigue. Therefore, the aim of this study was to assess the sensitivity of tensiomyographic markers to identify reduced muscular performance in elite youth athletes. Methods...

The Acute Recovery and Stress Scale (ARSS) and the Short Recovery and Stress Scale were first established in German for the purposes of monitoring athletes' current recovery-stress states in an economical and multidimensional manner. The aim of this paper is to document the development and initial validation of the English versions of these two psy...

Monitoring athletes’ responses to training and other life stressors is crucial for implementing favourable training routines and achieving optimal performances. The purpose of this review is to provide an overview and evaluation of current psychological tools used in training contexts among athletes. The instruments discussed include the Profile of...

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...

Purpose: Assessment of muscle recovery is essential for the daily fine-tuning of training load in competitive sports, but individual differences may limit the diagnostic accuracy of group-based reference ranges. We report an attempt to develop individualized reference ranges using a Bayesian approach comparable to that developed for the athlete bi...

This study examined sleep-wake habits and subjective jet-lag ratings of 55 German junior rowers (n = 30 male, 17.8 ± 0.5 years) before and during the World Rowing Junior Championships 2015 in Rio de Janeiro, Brazil. Athletes answered sleep logs every morning, and Liverpool John Moore's University Jet-Lag Questionnaires each evening and morning. Fol...

A recovery process with optimal prerequisites, which is interrupted, is termed disrupted recovery. Whether this process has an influence on performance-related factors needs to be investigated. Therefore, the aim of this study was to examine how a short disturbance of a recovery phase is assessed and whether subsequent repeated sprint performance i...