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Characteristics of inline speedskating--incremental tests and effect of drafting." Int J Sports Med. 2006;27(10):818-23.
"No increased injury incidence in the German Bundesliga after the SARS-CoV-2 virus lockdown." Arch Orthop Trauma Surg. 2022;142(7):1571-1578.
"Running exercise of different duration and intensity: effect on endothelial progenitor cells in healthy subjects." Eur J Cardiovasc Prev Rehabil. 2005;12(4):407-14.
" "Repeated monitoring of blood parameters for evaluating strain and overload in elite football players: is it justified?" J Sports Sci. 2014;32(13):1328-31.
"Indicators for high physical strain and overload in elite football players." Scand J Med Sci Sports. 2013;23(2):156-63.
"Routine blood parameters in elite soccer players." Int J Sports Med. 2011;32(11):875-81.
"Does cumulating endurance training at the weekends impair training effectiveness?" Eur J Cardiovasc Prev Rehabil. 2006;13(4):578-84.
"Ambulatory gas exchange measurements--current status and future options." Int J Sports Med. 2005;26 Suppl 1:S19-27.
"An alternative approach for exercise prescription and efficacy testing in patients with chronic heart failure: a randomized controlled training study." Am. Heart J.. 2005;149(5):e1-7.
"A conceptual framework for performance diagnosis and training prescription from submaximal gas exchange parameters--theory and application." Int J Sports Med. 2005;26 Suppl 1:S38-48.
"Peak oxygen uptake. Myth and truth about an internationally accepted reference value." Z Kardiol. 2005;94(4):255-64.
"Can serum NT-proBNP detect changes of functional capacity in patients with chronic heart failure?" Z Kardiol. 2004;93(7):540-5.
"Is lactic acidosis a cause of exercise induced hyperventilation at the respiratory compensation point?" Br J Sports Med. 2004;38(5):622-5.
"Different effects of two regeneration regimens on immunological parameters in cyclists." Med Sci Sports Exerc. 2004;36(10):1743-9.
"Exercise programmes for patients with chronic heart failure." Sports Med. 2004;34(14):939-54.
"Endurance training in panic patients: spiroergometric and clinical effects." Int J Sports Med. 1998;19(7):496-502.
"Is determination of exercise intensities as percentages of VO2max or HRmax adequate?" Med Sci Sports Exerc. 1999;31(9):1342-5.
"Anaerobic exercise induces moderate acute phase response." Med Sci Sports Exerc. 2001;33(4):549-55.
"Reliability of gas exchange measurements from two different spiroergometry systems." Int J Sports Med. 2001;22(8):593-7.
"Metabolic profile of 4 h cycling in the field with varying amounts of carbohydrate supply." Eur. J. Appl. Physiol.. 2003;88(4-5):431-7.
"Maximal oxygen uptake during field running does not exceed that measured during treadmill exercise." Eur. J. Appl. Physiol.. 2003;88(4-5):387-9.
"Therapeutic impact of exercise on psychiatric diseases: guidelines for exercise testing and prescription." Sports Med. 2000;30(4):269-79.
"Where have all the reviewers gone? Discussing the importance of the peer review community." J Sci Med Sport. 2023;26(4-5):215-216.
"COVID-19 in German Competitive Sports: Protocol for a Prospective Multicenter Cohort Study (CoSmo-S) ." Int J Public Health. 2022;67:1604414.
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Hippocampal plasticity in response to exercise in schizophrenia." Arch. Gen. Psychiatry. 2010;67(2):133-43.
"Where are we headed? Evidence to inform future football heading guidelines." Sports Med. 2023;53(7):1335-1358.
"Cooling and performance recovery of trained athletes: a meta-analytical review." Int J Sports Physiol Perform. 2013;8(3):227-42.
"Transferability of workload measurements between three different types of ergometer." Eur. J. Appl. Physiol.. 2000;82(3):245-9.
"Running 8000 m fast or slow: Are there differences in energy cost and fat metabolism?" Med Sci Sports Exerc. 2005;37(10):1789-93.
"Psychophysiological Responses to a Preseason Training Camp in High-Level Youth Soccer Players." Int J Sports Physiol Perform. 2023;18(1):18-26.
"F-MARC: the FIFA Sudden Death Registry (FIFA-SDR)." Br J Sports Med. 2015;49(9):563-5.
"Return to play after acute infectious disease in football players." J Sports Sci. 2014;32(13):1237-42.
"Competitive sports and the heart: benefit or risk?" Dtsch Arztebl Int. 2013;110(1-2):14-23; quiz 24; e1-2.
"Echocardiography of the right ventricle in athlete's heart and hearts of normal size compared to magnetic resonance imaging: which measurements should be applied in athletes?" Int J Sports Med. 2010;31(1):58-64.
"Pitfalls in the differentiation between athlete's heart and hypertrophic cardiomyopathy." Clin Res Cardiol. 2009;98(7):465-6; author reply 467-8.
"Exercise-associated increases in cardiac biomarkers." Med Sci Sports Exerc. 2008;40(8):1408-15.
"Exercise-induced increases in NT-proBNP are not related to the exercise-induced immune response." Br J Sports Med. 2008;42(5):383-5.
"Is it helpful to study a commercial multi-nutrient supplement on exercise performance?" Eur. J. Appl. Physiol.. 2008;103(4):487.
""Exercise-induced increases in cardiac troponins in endurance athletes: a matter of exercise duration and intensity?"." Clin Res Cardiol. 2008;97(1):62-3; author reply 61.
"Effects of graded carbohydrate supplementation on the immune response in cycling." Med Sci Sports Exerc. 2006;38(2):286-92.
"Reproducibility and clinical significance of exercise-induced increases in cardiac troponins and N-terminal pro brain natriuretic peptide in endurance athletes." Eur J Cardiovasc Prev Rehabil. 2006;13(3):388-97.
"Independent elevations of N-terminal pro-brain natriuretic peptide and cardiac troponins in endurance athletes after prolonged strenuous exercise." Am. Heart J.. 2005;150(6):1128-34.
"Does prolonged cycling of moderate intensity affect immune cell function?" Br J Sports Med. 2005;39(3):171-7; discussion 171-7.
"Suggested new upper limit of physiologic cardiac hypertrophy determined in Japanese ultramarathon runners must be interpreted cautiously." J. Am. Coll. Cardiol.. 2004;44(2):470-1; author reply 471.
"No difference in N-terminal pro-brain natriuretic peptide (NT-proBNP) concentrations between endurance athletes with athlete's heart and healthy untrained controls." Heart. 2004;90(9):1055-6.
"Mobilization and oxidative burst of neutrophils are influenced by carbohydrate supplementation during prolonged cycling in humans." Eur. J. Appl. Physiol.. 2002;87(6):584-7.
"Bicuspid aortic valve: evaluation of the ability to participate in competitive sports: case reports of two soccer players." Clin Res Cardiol. 2006;95(4):228-34.
"Differences in adaptations to 1 year of aerobic endurance training: individual patterns of nonresponse." Scand J Med Sci Sports. 2012;22(1):113-8.
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