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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.
"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.
"Moderate-intensity aerobic exercise training as an adjunct to trauma-focused psychotherapy in traumatized refugees and asylum seekers: study protocol of a randomized controlled trial." Eur J Psychotraumatol. 2023;14(2):2251777.
"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.
"No increased injury incidence in the German Bundesliga after the SARS-CoV-2 virus lockdown." Arch Orthop Trauma Surg. 2022;142(7):1571-1578.
"Characteristics of inline speedskating--incremental tests and effect of drafting." Int J Sports Med. 2006;27(10):818-23.
"F-MARC: promoting the prevention and management of sudden cardiac arrest in football." Br J Sports Med. 2015;49(9):597-8.
"In response to: Seventy-five percent of National Football League teams use pregame hyperhydration with intravenous fluid." Clin J Sport Med. 2011;21(6):545; author reply 545.
"Do inhaled beta(2)-agonists have an ergogenic potential in non-asthmatic competitive athletes?" Sports Med. 2007;37(2):95-102.
"Left ventricular dimensions and function in strength athletes. Re: Hartgens F, Cheriex EC, Kuipers H. Prospective echocardiographic assessment of androgenic-anabolic steroids effects on cardiac structure and function in strength athletes. Int J Sports Med." Int J Sports Med. 2004;25(3):241-2; author reply 243-4.
"Inhaled beta2 agonists and performance in competitive athletes." Br J Sports Med. 2006;40 Suppl 1:i43-7.
"Doubtful validity of the yo-yo intermittent recovery test. ." Med Sci Sports Exerc. 2003;35(12):2119; author reply 2120.
"Polymorphisms in the IGF1 signalling pathway including the myostatin gene are associated with left ventricular mass in male athletes." Br J Sports Med. 2011;45(1):36-41.
"Altered vitamin B12 status in recreational endurance athletes." Int J Sport Nutr Exerc Metab. 2005;15(4):433-41.
"Long-distance mountain biking does not disturb the measurement of total, free or complexed prostate-specific antigen in healthy men." Clin. Chem. Lab. Med.. 2004;42(3):347-9.
"Off-ball behavior in association football: A data-driven model to measure changes in individual defensive pressure." J Sports Sci. 2022;40(12):1412-1425.
"Associations between acute and chronic effects of exercise on indicators of metabolic health: a pilot training trial." PLoS ONE. 2013;8(11):e81181.
"Association between postexercise hypotension and long-term training-induced blood pressure reduction: a pilot study." Clin J Sport Med. 2013;23(1):58-63.
"Invited Editorial on "Skeletal Muscle Signature of a Champion Sprint Runner"." J. Appl. Physiol.. 2015;118(12):1447-8.
"Forecasting football injuries by combining screening, monitoring and machine learning." Sci Med Footb. 2023;7(3):214-228.
"Incidence, characteristics and cost of head, neck and dental injuries in non-professional football using 3 years of sports injury insurance data." Dent Traumatol. 2023;39(6):542-554.
"Injury prevention in male veteran football players - a randomised controlled trial using "FIFA 11+"." J Sports Sci. 2015;33(9):873-81.
"Exercise and the heart: can you have too much of a good thing?" Med Sci Sports Exerc. 2008;40(8):1390-2.
"Vaccination in elite athletes." Sports Med. 2014;44(10):1361-76.
"Sleep and athletic performance: the effects of sleep loss on exercise performance, and physiological and cognitive responses to exercise." Sports Med. 2015;45(2):161-86.
"Critical evaluation of a badminton-specific endurance test." Int J Sports Physiol Perform. 2014;9(2):249-55.
"Strength training adaptations after cold-water immersion." J Strength Cond Res. 2014;28(9):2628-33.
"The effect of short-term interval training during the competitive season on physical fitness and signs of fatigue: a crossover trial in high-level youth football players." Int J Sports Physiol Perform. 2014;9(6):936-44.
"High intensity interval training vs. high-volume running training during pre-season conditioning in high-level youth football: a cross-over trial." J Sports Sci. 2013;31(13):1441-50.
"Straight sprinting is the most frequent action in goal situations in professional football." J Sports Sci. 2012;30(7):625-31.
"Seasonal changes in stress indicators in high level football." Int J Sports Med. 2011;32(4):259-65.
"Football to tackle overweight in children." Scand J Med Sci Sports. 2010;20 Suppl 1:103-10.
"Recovery training in cyclists: ergometric, hormonal and psychometric findings." Scand J Med Sci Sports. 2009;19(3):433-41.
"Lactate threshold concepts: how valid are they?" Sports Med. 2009;39(6):469-90.
"Volume vs. intensity in the training of competitive swimmers." Int J Sports Med. 2008;29(11):906-12.
"Physiological characteristics of badminton match play." Eur. J. Appl. Physiol.. 2007;100(4):479-85.
"Risk factors for injuries in elite female soccer players." Br J Sports Med. 2006;40(9):785-90.
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