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Matthias W. Hoppe

Matthias W. Hoppe
Universitity of Leipzig · Movement and Training Science

Jun.-Prof. Dr. rer. nat.

About

133
Publications
56,012
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Introduction
Assistant Professor (University of Leipzig) interested in Exercise / Training Science, Sport Orthopedics and New Technologies.

Publications

Publications (133)
Article
Full-text available
The ability of the “metabolic power” model to assess the demands of team-sport activity has been the subject of some interest— and much controversy—in team-sport research. Because the cost of acceleration depends on the initial speed and the costs of acceleration and deceleration are not “equal and opposite,” changes in speed must be accounted for...
Article
Full-text available
This study aimed to investigate the effects of different playing strategies on external and internal loads in female tennis players during match play. Also, the underlying effects on the technical-tactical actions and activity profiles were examined. Twelve well-trained female players (age: 25±5 years; maximum oxygen uptake: 40.9±4.3 ml/kg/min) pla...
Article
Full-text available
This study aimed to compare the validity of a local positioning system (LPS) during outdoor and indoor conditions for team sports. The impact of different filtering techniques was also investigated. Five male team sport athletes (age: 27 ± 2 years; maximum oxygen uptake: 48.4 ± 5.1 mL/min/kg) performed 10 trials on a team sport-specific circuit on...
Article
The aim of this randomized controlled laboratory study was to evaluate the role of standardized protection, rest, ice (cryotherapy), compression and elevation (PRICE) therapy on microvascular blood flow in human skeletal muscle. Quantifiable contrast-enhanced ultrasound was used to analyze intramuscular tissue perfusion (ITP) of the rectus femoris...
Article
Full-text available
Background: A complete avulsion of the proximal rectus femoris muscle is a rare but severity injury. There is a lack of substantial information for its operative treatment and rehabilitation; in particular there is a lack of biomechanical data to evaluate long-term outcomes. Case presentation: The case report presents the injury mechanism and su...
Article
Full-text available
The objective distinction of different types of mental demands as well as their intensity is relevant for research and practical application but poses a challenge for established physiological methods. We investigated whether respiratory gases (oxygen uptake and carbon dioxide output) are suitable to distinguish between emotional stress and cogniti...
Article
Background Contrast-enhanced ultrasound (CEUS) has been shown to be a valid measurement tool for evaluating microvascular blood flow. Until now, the assessment of periosteal tissue has been insufficiently validated, and a procedure has not yet been standardized for this purpose. The aim of the present study was to investigate periosteal femur perfu...
Article
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Background and Methods During isokinetic knee strength testing, the knee flexion angles that correspond to the measured torque values are rarely considered. Additionally, the hip flexion angle during seated testing diverges from that in the majority of daily life and sporting activities. Limited information concerning the influence of hip angle, mu...
Article
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Background: Foam rolling is a type of self-massage using tools such as foam or roller sticks. However, to date, there is no consensus on contraindications and cautions of foam rolling. A methodological approach to narrow that research gap is to obtain reliable opinions of expert groups. The aim of the study was to develop experts' consensus on con...
Preprint
Full-text available
The objective distinction of different types of mental demands as well as their intensity is relevant for research and practical application but poses a challenge for established physiological methods. We investigated whether respiratory gases (oxygen uptake and carbon dioxide output) are suitable to distinguish between emotional and cognitive dema...
Article
Full-text available
Verletzungen des vorderen Kreuzbandes (VKB) sind keine Bagatellverletzungen und werden meist von weiteren Schädigungen begleitet. Nach operativer Versorgung erfordern Verletzungen des VKB eine dem Schweregrad der Verletzung angepasste sowie individuelle und stadienadaptierte Rehabilitation, auch um das Risiko von Rezidivverletzungen und Folgeschäde...
Article
Während der postoperativen Nachbehandlungen vieler Schultergelenkseingriffe steht die Immobilisation des Gelenks mittels Orthesen im Vordergrund. Auch kommt der passiven-assistierten Mobilisation des Gelenks (z.B. durch physiotherapeutische Eigenübungen) eine wichtige Bedeutung zu. Gegenwärtig ist jedoch der Einfluss unterschiedlicher Orthesen bzw....
Preprint
Full-text available
Background: Foam rolling is a type of self massage using tools such as foam rollers or roller massagers. As no consensus on contraindications and cautions of foam rolling exists to date, current suggestions in the literature are drawn from the field of therapeutic massage. A methodological approach to help closing the gap in the current research la...
Article
Full-text available
The relative age effect (RAE) is associated with (dis)advantages in competitive sports. While the RAE in elite male soccer reveals a skewed birthdate distribution in relation to a certain cut-off date, research of RAE in elite female soccer is affected by small number of samples and conflicting results. The purpose of this study was to investigate...
Chapter
Full-text available
The aim of this study was to investigate the effects of a split-step on the quality of reception in indoor elite volleyball. For this purpose, twelve games of the Volleyball Nations League were examined. Of all 1792 analyzed receptions, 1388 (77.5 %) receptions were performed with a split-step. The quality of reception with a split-step was statist...
Book
Aus dem 6. GOTS-Expertenmeeting, diesmal zum Thema „Prävention“, ist nach viel Arbeit aller beteiligten Autoren das sehr gute, umfangreiche Buch „Primärprävention von Sportverletzungen“ hervorgegangen. Schwerpunkt-Themen darin sind: Epidemiologie von Sportverletzungen Volkswirtschaftliche Kosten von Sportverletzungen und Prävention Wie funktionie...
Article
For many years, strength training has been an integral part of rehabilitation after knee trauma. In the first part of the paper, new research results on muscle contraction, especially eccentric muscle action, are presented in rehabilitative accentuated strength training after knee trauma. It is pointed out that the strength training methodology, wh...
Article
CrossFit is a form of high-intensity interval training and comparable to other high-intensity exercises. CrossFit exercises increase VO2max, strength, endurance, and improves the body composition (e. g. lean body mass). The injury risk in CrossFit is similar to that of other, comparable sports such as Olympic weightlifting, powerlifting and gymnast...
Article
Full-text available
Background: Maximum oxygen uptake is an established measurement of diagnosing chronic heart failure and underlies various central and peripheral factors. However, central and peripheral factors are little investigated, because they are usually measured invasively. The aim of this study was to compare non-invasively measured central and peripheral...
Article
Background: Tissue flossing has been introduced to increase ROM and flexibility, to enhance prevention and rehabilitation, as well as to improve athletic performance; however, limited evidence exists for its efficacy. The aim of the present study was to evaluate the effects of ankle flossing on periarticular stiffness and perfusion via acoustic ra...
Article
Full-text available
This study aimed to investigate differences in anthropometric characteristics and physical capacities (1) between under (U) 17, 19, and 21 years old elite junior soccer players, and also (2) between starting and nonstarting players within each age group. Ninety-two male elite German junior field players were tested for height, mass, fat, and fat-fr...
Article
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Background It is frequently observed that overloading the foot can impair bone and soft tissue healing and can lead to harmful sequelae (i.e. ulcers, stress reactions) in context of pre-existing tissue disabilities. In terms of offloading, hindfoot relief devices are commonly applied as a non-operative treatment as well as after various surgical pr...
Article
Context: Foam rolling (FR) has been developed into a popular intervention and has been established in various sports disciplines. However, its effects on target tissue, including changes in stiffness properties, are still poorly understood. Objective: To investigate muscle-specific and connective tissue-specific responses after FR in recreationa...
Article
Full-text available
This study compared intermittent endurance performance and heart rate (HR) response, as well as their relationship, by sex and competitive level in soccer. A total of 68 outfield (18 elite and 16 sub-elite female, 17 elite and 17 sub-elite male) soccer players performed the Interval Shuttle Run Test (ISRT) with monitored HR. Sex and level effects w...
Article
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Hypogravity treadmills have become a popular training tool in distance running and triathlon. Counter-intuitively, tibial acceleration load is not attenuated by hypogravity unloading during running, while, equally surprisingly, leaps become flatter instead of higher. To explain these effects from a biomechanical perspective, Polet, Schroeder, and B...
Article
Das Ellenbogengelenk weist eine komplexe Anatomie mit mehreren, das Gelenk kreuzenden neurovaskulären Strukturen auf. Die Ellbogenarthroskopie stellt weiterhin ein herausforderndes Operationsverfahren mit einer steilen Lernkurve und einem verhältnismäßig hohen Risiko für iatrogene Verletzungen dieser neurovaskulären Strukturen dar. In diesem Beitra...
Article
Zusammenfassung Ziel der Studie war es zu untersuchen, ob im Elite-Kanusport durch das Tragen von Oberkörperkompressionsbekleidung eine Verbesserung der Leistungsfähigkeit zu erzielen ist. Für die Studie wurden 23 Elite-Athleten des Deutschen Kanuverbands (6 Frauen, 17 Männer) rekrutiert. Diese absolvierten auf einem Regattasee eine 1650 m lange Te...
Article
Background Cold-water immersion (CWI) has become a popular preventive, regenerative and performance-enhancing intervention in various sports. However, its effects on soft tissue, including changes of intramuscular stiffness, are poorly understood. The purpose of this study was to investigate the effect of CWI on muscle stiffness. Patients/Material...
Article
Full-text available
Background: Thoracic bioreactance (TB), a noninvasive method for the measurement of cardiac output (CO), shows good test-retest reliability in healthy adults examined under research and resting conditions. Objective: In this study, we evaluate the test-retest reliability of CO and cardiac power (CPO) output assessment during exercise assessed by...
Article
Background: Pronounced lateral differences in musculoskeletal loading are widely considered a risk factor for the onset of various overuse injuries in the lower limbs in long-distance running. In a recent study, we described an innovative, easy-to-employ measurement setup based on commercially available inertial measurement units (IMUs) to assess t...
Article
Background: Despite its various positive health effects, long-distance running implies substantial biomechanical loads on the musculoskeletal system, especially in a competitive context. The incidence of running-related overuse injuries is high, especially for the tibia being one of the predominant injury localisations. Tibial impact accelerations...
Article
Full-text available
The triathlon is one of the fastest developing sports in the world due to expanding participation and media attention. The fundamental change in Olympic triathlon races from a single to a multistart event is highly demanding in terms of recovery from and prevention of exercise-induced muscle injures. In elite and competitive sports, ultrastructural...
Article
Full-text available
Background: Plantar fasciitis (PF) is one of the most common causes of plantar heel pain. Objective: To evaluate the effectiveness of three different treatment approaches in the management of PF. Methods: Sixty-three patients (44 female, 19 men; 48.4 ± 9.8 years) were randomly assigned into a manual therapy (MT), customised foot orthosis (FO)...
Article
Full-text available
Nach über vier Stunden Spielzeit während der ersten Runde der diesjährigen Australien Open sank Sir Andrew Barron „Andy“ Murray erschöpft auf seiner Bank nieder. Der ehemalige Weltranglistenerste, zweifache Olympiasieger und dreifache Grand-Slam-Sieger hatte sein wahrscheinlich letztes großes Tennismatch verloren. Nicht etwa gegen seinen verdienten...
Article
Full-text available
This study aimed to investigate the effects of playing strategies on match activities and physiological responses in well-trained female tennis players. Twelve well-trained female players (25+-5 years) played points against an opponent of similar ability. Thereby, the players were instructed to apply either a passive, an active, or their own playin...
Article
Full-text available
Non-traumatic shoulder pain is a challenge in treating overhead athletes. Also in tennis adaptations of the shoulder in the course of a sports career often lead to a significant restriction of mobility or to a shift in the range of motion in favor of external rotation and at the expense of internal rotation. At the same time, many athletes are losi...
Article
Delayed-onset muscle soreness (DOMS) describes an entity of ultrastructural muscle damage. The manifestation of DOMS is caused by eccentric muscle contractions or unaccustomed forms of exercise. Clinical signs include impaired muscular force capacities, painful restriction of movement, stiffness, swelling, and altered biomechanics in adjacent joint...
Article
Full-text available
When considering the scientific lack concerning the execution and acute effects and mechanism of foam rolling (FR), this study has evaluated the biomechanical loads by the force-time characteristics during two popular FR exercises. Additionally, the acute effects of FR on jump height and muscular stiffness were simultaneously assessed. Within a ran...
Article
Full-text available
Background Strength deficits, muscle imbalances, and quadriceps inhibition are common after the surgical reconstruction of the anterior cruciate ligament (ACL), even after the patient’s returned-to-sport. Typically, asymmetries between the operated and non-operated leg as well as the hamstring/quadriceps (HQ) ratio are calculated using maximum isok...
Article
Full-text available
For physical performance assessment in elite soccer, there are presently more external valid and specific testing procedures than in the seventies. The reason for this is mainly due to the technological progress. State of the art for physical performance assessment in elite soccer are positioning systems and innovative algorithms. In the future, th...
Article
Delayed-onset muscle soreness (DOMS) is a type of ultrastructural muscle injury. The manifestation of DOMS is caused by eccentric or unfamiliar forms of exercise. Clinical signs include reduced force capacities, increased painful restriction of movement, stiffness, swelling, and dysfunction of adjacent joints. Although DOMS is considered a mild typ...
Article
Full-text available
This study compared the sprint mechanical properties of female and different aged male top-level soccer players. A total of 14 adult females (FEM) and 115 different aged male field players, competing at German top levels, participated in this study. The males belonged to teams of under 12, 13, 14, 15, 17, 19, and 23 years (U 12–23) and professional...
Article
Cardoso de Araújo, M, Baumgart, C, Jansen, CT, Freiwald, J, and Hoppe, MW. Sex differences in physical capacities of German Bundesliga soccer players. J Strength Cond Res XX(X): 000-000, 2018-Sex differences in physical capacities of elite soccer players have received limited attention. Therefore, this study investigated sex differences in linear a...
Article
Full-text available
This study aimed to investigate the validity and reliability of global (GPS) and local (LPS) positioning systems for measuring distances covered and sprint mechanical properties in team sports. Here, we evaluated two recently released 18 Hz GPS and 20 Hz LPS technologies together with one established 10 Hz GPS technology. Six male athletes (age: 27...
Article
Full-text available
In this article, we introduce positioning systems in combination with innovative data processing approaches for estimating external loads and internal demands during intermittent running activities in team and racquet sports. Potential application fields are (i) performance analyses for profiling athletes; (ii) training analyses for allowing period...
Article
Full-text available
Background: In all age groups of handball players, anthropometric characteristics and physical capacities are important prerequisites to fulfilling the playing demands. However, there is no study that has compared anthropometric characteristics and physical capacities between junior and adult handball players by the same research design containing...
Article
Full-text available
Background: Jumpanalyses are frequently conducted in the sport and rehabilitation sector by different methods. This study aimed to compare a new ultrasonic system (US) measuring the distance between standing and the highest point of the jump with (a) the impulse-momentum (FP_IM), double integration (FP_DI), and flight-time (FP_FT) methods using a f...
Article
Full-text available
This study aimed to determine the within-subject variability of GPS-derived metabolic power data in elite soccer players across several pre-season matches and compare the variability of high metabolic power, velocity, acceleration and deceleration running. Additionally, differences in metabolic power data among playing positions and relationships w...