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Introduction
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Publications
Publications (21)
Background and Objectives: During intense training periods, there is a high need to monitor the external and especially the internal training load in order to fine-tune the training process and to avoid overreaching or overtraining. However, data on stress reactions, especially of biomarkers, to high training loads in children and youth are rare. T...
Recent studies have shown that the oxygenated hemoglobin level can be enhanced during rest through the application of nonivamide-nicoboxil cream. However, the effect of nonivamide-nicoboxil cream on oxygenation and endurance performance under hypoxic conditions is unknown. Therefore, the purpose of this study was to investigate the effects of noniv...
Zusammenfassung
In der Sportmedizin und -wissenschaft sowie im Hochleistungssport werden Untersuchungen sowohl unter standardisierten Bedingungen im Labor als auch im Feld durchgeführt. Es kommen dabei die unterschiedlichsten medizinischen Messmethoden zum Einsatz. Fast immer werden sie von Blutanalysen begleitet, wobei sowohl hochkomplexe Laborver...
Background: In the past years, there was an increasing development of physical activity tracker (Wearables). For recreational people, testing of these devices under walking or light jogging conditions might be sufficient. For (elite) athletes, however, scientific trustworthiness needs to be given for a broad spectrum of velocities or even fast chan...
Aim: mircoRNAs (miRNAs), small non-coding RNAs regulating gene expression, are stably secreted into the blood and circulating miRNAs (c-miRNAs) may play an important role in cell–cell communication. Furthermore, c-miRNAs might serve as novel biomarkers of the current vascular cell status. Here, we examined how the levels of three vascular c-miRNAs...
Confirmation of endothelial cell apoptosis by TUNEL-staining.
PurposeThe aim of the present study was to compare the effects of high-intensity interval training (HIIT) vs high-volume training (HVT) on salivary stress markers [cortisol (sC), testosterone (sT), alpha-amylase (sAA)], metabolic and cardiorespiratory response in young athletes. Methods
Twelve young male cyclists (14 ± 1 years; 57.9 ± 9.4 mL min−1...
We investigated alternatives to commonly used biomarkers of exercise-induced tissue damage. Over 5 days following two bouts of 100 drop-to-vertical jumps (inter-bout rest period of 3 weeks), myosin heavy chain 1, hydroxylysine (HYL), hydroxyproline (HYP), spermine (SPM) and spermine synthase (SMS) were measured in the serum of 10 participants. HYL...
Aim: The aim of the present study was to analyze the response of vascular circulating microRNAs (miRNAs; miR-16, miR-21, miR-126) and the VEGF mRNA following an acute bout of HIIT and HVT in children.
Methods:Twelve healthy competitive young male cyclists (14.4 ± 0.8 years; 57.9 ± 9.4 ml·min⁻¹·kg⁻¹ peak oxygen uptake) performed one session of high...
High-mobility group box 1 (HMGB1) has recently been reported to be involved in proinflammation and tissue repair. Therefore, we hypothesized that HMGB1 is released into the bloodstream after eccentric exercises or prolonged endurance activities. Blood samples from 11 participants that performed 100 drop to vertical jumps (DVJ) and from 10 participa...
Aim:
If unaccustomed lengthening contractions are repeated within a certain period of time, muscle damage symptoms are blunted. This observation, often referred to as the repeated bout effect (RBE), also holds true for the response of muscle damage markers like creatine kinase (CK). However, measuring plasma enzyme activity rather than the concent...
The primary aim of the present study was to investigate if there is a repeated bout effect for cartilage tissue, evident in the marker serum cartilage oligomeric matrix protein (sCOMP). Ten healthy male subjects (26.4±3.14 years) performed two high impact interventions (100 drop jumps with a 30 second interval) carried out at a 3 week interval. Aft...
This study examined the effects of different levels of compression (0, 20 and 40 mmHg) produced by leg garments on selected psycho-physiological measures of performance while exposed to passive vibration (60 Hz, amplitude 4-6 mm) and performing 3-min of alpine skiing tuck position METHODS: Prior to, during and following the experiment the electromy...
In den letzten Jahren konnte in diversen Studien gezeigt werden, dass viele physiologische Anpassungsprozesse eines High Intensity Training (HIT) vergleichbar sind zu den Prozessen, die durch längeres niedrig intensives Training (HVT) erreicht werden. Die regulativ wirkenden miRNAs 16, 21 und 126 sind an der Regulation der Angiogenese beteiligt. In...
Die akute vaskuläre Regulation auf High-Intensity-Training (HIT) und High-volume-Training (HVT) ist bisher hauptsächlich im Erwachsenenbereich und weniger im Kindes- und Jugendbereich untersucht worden. Daher war Ziel der vorliegenden Studie die akute vaskuläre Regulation auf HIT und HVT bei Kindern im Radsport zu untersuchen.12 männliche Radsportl...
In den letzten Jahren konnte in diversen Studien gezeigt werden, dass viele physiologische Anpassungsprozes-se eines High Intensity Training (HIT) vergleichbar sind zu den Prozessen, die durch längeres niedrig intensives Training (HVT) erreicht werden. Die regulativ wirkenden miRNAs 16, 21 und 126 sind an der Regulation der An-giogenese beteiligt....
