Philip X. Fuchs

National Taiwan Normal University | NTNU · Department of Athletic Performance

The objective was to determine the reliability and validity of a local positioning system (LPS) promising high accuracy at reduced product costs. Fifty-five random static positions in a gym (54.8 × 26.0 m) were obtained 10 times via LPS (50 Hz) and measuring tape. An athlete’s LPS-derived peak and time-series speed and acceleration during dynamic m...

Research attempted to validate simplified insoles with a reduced number of sensors to facilitate clinical application. However, the ideal sensor number is yet to be determined. The purpose was to investigate the validity of vertical ground reaction forces in various simplified pressure sensor insoles and to identify an optimal compromise between se...

This study quantified the strength of the relationship between the percentage of heart rate reserve (%HRR) and two acceleration-based intensity metrics (AIMs) at three sensor-positions during three sport types (running, basketball, and badminton) under three intensity conditions (locomotion speeds). Fourteen participants (age: 24.9 ± 2.4 years) wor...

Lactate is a metabolite produced during anaerobic glycolysis for ATP resynthesis, which accumulates during hypoxia and muscle contraction. Tobacco smoking significantly increases blood lactate. Here we conducted a counter-balanced crossover study to examine whether this effect is associated with inhaling nicotine or burned carbon particles. Fifteen...

This article is open access. Please visit https://doi.org/10.1016/j.jshs.2022.03.001

Monitoring physical activity, e.g., training load and energy expenditure (EE), is important to optimize the training process in various sports. Especially in team handball, where there is little information about EE in training and competition. The objective of the study was to compare EE in team handball derived from a respiratory gas exchange ana...

The purpose of this study was to evaluate the validity and reliability of a tire pressure sensor (TPS) cycling power meter against a gold standard (SRM) during indoor cycling. Twelve recreationally active participants completed eight trials of 90 s of cycling at different pedaling and gearing combinations on an indoor hybrid roller. Power output (P...

Despite Dual Careers (sports and education) and mobility of students being priorities in the funding policies of the European Commission, migrating student-athletes report severe challenges and decreased performance or dropouts at sport and academic levels. The objective of this study was to depict and assess the perceptions on challenges, support...

Full-Text Open Access: https://www.mdpi.com/2076-3417/11/3/1105/htm <<<>>> Abstract: In performance testing, it is well-established that general jump types like squat and countermovement jumps have great reliability, but the relationship with volleyball spike jumps is unclear. The objectives of this study were to analyze the relationship between ge...

Published in: Research Features, 133, 98-101, https://cdn.researchfeatures.com/3d_issues/RF133/index.html ||| Migration across borders in the EU is a requirement in many elite sports and poses a fundamental challenge for Dual Career athletes. The AMiD project tackles the obstacles of migration within the EU for Dual Career athletes together with t...

Despite Dual Careers (DC) of athletes and mobility of students being priorities in the funding policies of the European Commission, migrating DC athletes face several challenges at sport and academic levels. The objectives were to provide guidelines for implementing DC migration interventions at European level. A systematic literature review (n=14)...

Despite Dual Careers (DC) of athletes and mobility of students being priorities in the funding policies of the European Commission, migrating DC athletes face several challenges at sport and academic levels. The objectives were to provide guidelines for implementing DC migration interventions at European level. A systematic literature review (n=14)...

Computerized wobble boards (WB) are used to objectively assess balance in healthy and chronic ankle instability individuals. As in field setting health professionals might not own WB, objective evaluations are not always feasible. Therefore, the aim of this tudy was to investigate the contribution of sagittal plane joints angular-displacement and a...

OPEN ACCESS: https://www.mdpi.com/2076-3417/10/17/5921/htm ||| The purpose of this study was to determine whether coordinative jump training that induces neuromuscular stimuli can affect balance performance, associated with injury risk, in elite-level female volleyball players. During the competitive season, the balance performance of 12 elite fe...

Purpose: To determine the effect of in-season differential training on volleyball spike-jump technique and performance in elite-level female players. Methods: During the season, spike jumps of 12 elite female players (Austrian Volleyball League Women) were recorded by 13 Qualisys Oqus cameras (250 Hz) and an AMTI force plate (1000 Hz). First mea...

Objective The multifaceted characteristic and task-specificity of postural control clearly reflects the need of knowing which factors could influence the balance measures in order to provide reliable and unbiased information. Therefore, this study aimed to investigate the effects of selected anthropometric characteristics, sex, lower limb’s strengt...

Final presentation of the thesis on 1) biomechanical sex differences in volleyball spike jumping, 2) performance determinants in females, and 3) effects of technical training in females. https://youtu.be/KAKUnDGHsTg

There are well-known biological differences between women and men, especially in technical-coordinative variations that contribute to sex differences in performance of complex movements like the most important offensive action in volleyball, the spike jump. The aim of this study was to investigate sex-dependent performance and biomechanical charact...

Objectives: Performance factors in the volleyball spike jump are well known for male players; however, technical-coordinative differences for female players are known only marginally. The objective of this study was to investigate the relationship between movement characteristics and female’ spike jump performance and to identify the most relevant...

Background Wobble boards (WBs), commonly used to train postural control, have been recently equipped with accelerometers connected to a computer displaying real-time balance performances. However, little is known about their ability to detect balance deficits in subjects with unilateral chronic ankle instability (CAI). Objective To determine if co...

Original video record of the presentation: https://www.youtube.com/watch?v=pv8G5xGJmPQ Abstract: Oriental martial arts are heavily influenced by Zen Buddhism and Taoism (Columbus & Rice, 1991). However, such ways of thinking are associated with pacifism, ethics, or certain views on the world and human existence rather than with adding practical va...

Consecutive proximal-to-distal sequencing of motion is considered to be integral for generating high velocity of distal segments in many sports. Simultaneous usage of proximal and distal segments as seen in martial arts is by far less well investigated. Therefore, the aim of the study was to characterise and differentiate the concepts of consecutiv...

European Athlete Student network, 7 University of Rome Foro Italico Background: Migration across borders in the European Union (EU) can promote beneficial career development in many elite sports, especially when specific conditions are required, such as in winter or sea sports. For student-athletes pursuing tertiary education, however, the relocati...

Background: Migration across borders in the European Union (EU) can promote beneficial career development in many elite sports, especially when specific conditions are required, such as in winter or sea sports. For student-athletes pursuing tertiary education, however, the relocation of residence often involves severe challenges. Due to a variety o...

INTRODUCTION Jump height and ball velocity are most essential for successful volleyball spike jumps. Performance determining factors were investigated in males only (Wagner et al., 2014) despite technical differences between sexes (Fuchs et al., under review). In absence of clarified performance determining factors in females, optimised specific tr...

Purpose: Biological differences between men and women are well known; however, literature-addressing knowledge about the influence of sex to specific and general performance in team handball is almost nonexistent. Consequently, the aim of the study was to assess and compare specific and general physical performance in male and female elite team ha...

Chronic ankle instability (CAI) has been shown to cause balance impairments during still standing and dynamic postural-control tasks. Although computerized wobble boards (WBs) are used to train postural stability and to assess dynamic balance performances, little is known about their ability to detect balance deficits in subjects with unilateral CA...

Chronic ankle instability (CAI) has been shown to cause balance impairments during still standing and dynamic postural-control tasks. Although computerized wobble boards (WBs) are used to train postural stability and to assess dynamic balance performances, little is known about their ability to detect balance deficits in subjects with unilateral CA...

Computerized Wobble Boards (WB) are inexpensive, transportable and user-friendly devices to objectively quantify the dynamic balance performances out of laboratory settings, although it has not been established if they are reliable and valid tools. Therefore, the purpose of this study was to determine the reliability and validity of a computerized...

Background: Team handball is a dynamic sport game that is played professionally in numerous countries. However, knowledge about training and competition is based mostly on practical experience due to limited scientific studies. Consequently, the aims of our study were to compare specific physiological and biomechanical performance in elite, sub-el...

INTRODUCTION The EU guidelines on dual career (i.e., sport and education) encourage Member States to implement appropriate dual career services for elite student-athletes. Especially in winter sports the frequent numbers of training courses and competitions out of the University town may lead to a higher overlapping of study and sport and therefor...

The EU guidelines on dual careers (i.e., sport and education) encourage Member States to implement appropriate dual career services for elite student-athletes. Thus, the purpose of this study was to investigate: i) student-athletes’ perceptions regarding their sport and academic career paths; and ii) existing and possible implementations of dual ca...

INTRODUCTION Strength, power and anatomical differences between women and men are well known. However, in complex movements like the volleyball spike-jump, sex differences in performance may be due to technique. The aim of the study was 1) to detect sex dependent differences in kinematics, kinetics, and muscular activation patterns in the volleybal...

GERMAN presentation about the interaction of body and mind from a sport-scientific perspective including practical application in Qi Gong as an example. It was held during an open seminar in Augsburg (Germany), 10 June 2016, organized by Danuta Hofner (psyochologist).

Introduction: The EU guidelines on dual careers (i.e., sport and education) encourage Member States to implement appropriate dual career services for elite student-athletes. In this context, the European “WINNER Education Model” LLP project aims to develop an effective education model for student-athletes. Thus, the purpose of this study was to inv...

Abhängig von Rahmenbedingungen und Intentionen haben sich verschiedene Kampfarten und -techniken entwickelt. Unterschiedliche körperliche Voraussetzungen bei Frauen und Männern führen zu der Frage der geschlechterabhängigen Anwendbarkeit existierender Bewegungskonzepte. Ziel dieser Studie war die Analyse von Faustschlägen mit simultanem bzw. konsek...

Einleitung Abhängig von Rahmenbedingungen und Intentionen haben sich verschiedene Kampfarten und -techniken entwickelt. Unterschiedliche körperliche Voraussetzungen bei Frauen und Männern führen zu der Frage der geschlechterabhängigen Anwendbarkeit existierender Bewegungskonzepte. Ziel dieser Studie war die Analyse von Faustschlägen mit simultanem...