@article{KilianWehmeierWahletal.2016,
  author    = {Kilian, Yvonne and Wehmeier, Udo F. and Wahl, Patrick and Mester, Joachim and Hilberg, Thomas and Sperlich, Billy},
  title     = {Acute Response of Circulating Vascular Regulating MicroRNAs during and after High-Intensity and High-Volume Cycling in Children},
  series = {Frontiers in Physiology},
  volume    = {7},
  journal   = {Frontiers in Physiology},
  number    = {92},
  doi       = {10.3389/fphys.2016.00092},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-165261},
  year      = {2016},
  abstract  = {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 intensity 4 × 4 min intervals (HIIT) at 90-95\% peak power output (PPO), each interval separated by 3 min of active recovery, and one high volume session (HVT) consisting of a constant load exercise for 90 min at 60\% PPO. Capillary blood from the earlobe was collected under resting conditions, during exercise (d1 = 20 min, d2 = 30 min, d3 = 60 min), and 0, 30, 60, 180 min after the exercise to determine miR-16, -21, -126, and VEGF mRNA. Results: HVT significantly increased miR-16 and miR-126 during and after the exercise compared to pre-values, whereas HIIT showed no significant influence on the miRNAs compared to pre-values. VEGF mRNA significantly increased during and after HIIT (d1, 30′, 60′, 180′) and HVT (d3, 0′, 60′). Conclusion: Results of the present investigation suggest a volume dependent exercise regulation of vascular regulating miRNAs (miR-16, miR-21, miR-126) in children. In line with previous data, our data show that acute exercise can alter circulating miRNAs profiles that might be used as novel biomarkers to monitor acute and chronic changes due to exercise in various tissues.},
  language  = {en}
}
@article{SperlichAchtzehndeMareesetal.2016,
  author    = {Sperlich, Billy and Achtzehn, Silvia and de Mar{\´e}es, Markus and von Papen, Henning and Mester, Joachim},
  title     = {Load management in elite German distance runners during 3-weeks of high-altitude training},
  series = {Physiological Reports},
  volume    = {4},
  journal   = {Physiological Reports},
  number    = {12},
  doi       = {10.14814/phy2.12845},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-171294},
  pages     = {e12845},
  year      = {2016},
  abstract  = {There is a debate on the optimal way of monitoring training loads in elite endurance athletes especially during altitude training camps. In this case report, including nine members of the German national middle distance running team, we describe a practical approach to monitor the psychobiological stress markers during 21 days of altitude training (~2100 m above sea-level) to estimate the training load and to control muscle damage, fatigue, and/or chronic overreaching. Daily examination included: oxygen saturation of hemoglobin, resting heart rate, body mass, body and sleep perception, capillary blood concentration of creatine kinase. Every other day, venous serum concentration of blood urea nitrogen, venous blood concentration of hemoglobin, hematocrit, red and white blood cell were measured. If two or more of the above-mentioned stress markers were beyond or beneath the athlete's normal individual range, the training load of the subsequent training session was reduced. Running speed at 3 mmol L\(^{-1}\) blood lactate (V\(_{3}\)) improved and no athlete showed any signs of underperformance, chronic muscle damage, decrease body and sleep perception as well as activated inflammatory process during the 21 days. The dense screening of biomarkers in the present case study may stimulate further research to identify candidate markers for load monitoring in elite middle- and long-distance runners during a training camp at altitude.},
  language  = {en}
}