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Guenther Neumayr

Guenther Neumayr
Medical Practice Lienz · Departments of Internal Medicine Innichen & Kitzbühel; University of Medicine Innsbruck

MD

About

50
Publications
13,059
Reads
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1,628
Citations
Citations since 2017
7 Research Items
361 Citations
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20172018201920202021202220230102030405060
20172018201920202021202220230102030405060
20172018201920202021202220230102030405060
Additional affiliations
November 2001 - May 2009
Internal Medicine
Position
  • Head of Department
Description
  • Teaching Experience in Internal Medicine
January 1992 - October 2001
Institute of Sports and Cardiovascular Medicine
Position
  • Senior Researcher

Publications

Publications (50)
Article
Full-text available
Objectives This open comparative study aimed to analyze the effects of a one-week vacation with various activity programs on well-being, heart rate variability (HRV) and sleep quality in healthy vacationers. Methods Fifty-two healthy untrained vacationers spent a one-week vacation with regular exercise in East Tyrol. Exercise was performed on six...
Preprint
Full-text available
Objectives This open comparative study aimed to analyze the effects of a one-week vacation with various activity programs on well-being, heart rate variability (HRV) and sleep quality in healthy vacationers. Methods 52 healthy untrained vacationers spent a one-week vacation with regular exercise in East Tyrol. Exercise was performed on six of seve...
Preprint
Full-text available
Objectives: This open comparative study aimed to analyze the effects of a one-week vacation with various activity programs on well-being, heart rate variability (HRV) and sleep quality in healthy vacationers. Methods: 52 healthy untrained vacationers spent a one-week vacation with regular exercise in East Tyrol. Exercise was performed on six of sev...
Article
This study was conducted as part of a larger study of East Tyrolean health tourism, and investigates the effects of an active seven-day vacation on metabolic parameters and adipokines. Fifty-two healthy vacationers participated in two types of vacation activities (golf vs. Nordic walking or e-biking [nw&eb]). In the former group, 30 subjects played...
Article
Objective: A vacation is considered essential to achieve recovery from the stress of work. Knowledge about the potential health effects of holidays is scarce. The East Tyrolean Health Tourism Study is an open comparative study to investigate the cardiovascular effects of a one- week vacation with different activities on healthy vacationers. Metho...
Chapter
Die Wechselwirkungen zwischen Körper und Geist sind äußerst komplex und wissenschaftlich noch viel zu wenig erforscht. Jedenfalls befinden sie sich in einem sensiblen Gleichgewicht, das von vielen Faktoren abhängig ist. Bei einer Störung dieser Wechselwirkungen kann die Leistung vermindert werden. Zwei von vielen Störungsursachen stehen sich gegenü...
Article
Objective Physical activity is a cornerstone in therapy for patients with metabolic syndrome. Walking and hiking in a mountain scenery represents an ideal approach to make them move. The Austrian Moderate Altitude Study (AMAS) 2000 main study is a randomized controlled trial to investigate the cardiovascular effects of hiking at moderate altitude o...
Article
Full-text available
Ausdauersportler können über mehrere Trainingsjahre hinweg als Ausdruck einer kardialen Langzeit-Anpassungsreaktion ein Sportherz entwickeln, sowie unmittelbar nach erschöpfender Langzeitbelastung eine reversible sportbedingte Herzermüdung (cardiac fatigue) erfahren. Ziel der vorliegenden Arbeit ist es, die Charakteristika dieser zwei Entitäten zu...
Article
Full-text available
Interleukin 18 (IL-18) is an important pro-inflammatory cytokine in the early phase of human immune response to microbial infections. The influence of strenuous exercise on the intrinsic balance of IL-18 and its endogenous antagonist IL-18 binding protein (IL-18 BP) is unknown, but could be of major relevance for the athlete's immune function empir...
Article
For a further depiction of exercise-induced cardiac dysfunction, N-terminal pro-brain natriuretic peptide (NT-pro-BNP) and cardiac troponin T (cTnT) were measured in recreational cyclists (n = 29) during the Otztal Radmarathon 2004. In all subjects, NT-pro-BNP significantly increased from 28 +/- 21 to 278 +/- 152 ng/L immediately after the race (p...
Article
Full-text available
In recreational cyclists marathon cycling influences renal function only on a minimal scale. Respective information on extreme ultramarathon cycling in better trained athletes is not available. The objective was to evaluate the renal and haematological effects of ultraendurance cycling in the world's best ultramarathon cyclists. Creatinine (CR), ur...
Article
Full-text available
To analyse the heart rate (HR) response and estimate the ultraendurance threshold-the optimum maintainable exercise intensity of ultraendurance cycling-in ultraendurance elite cyclists competing in the Race across the Alps. HR monitoring was performed in 10 male elite cyclists during the first Race across the Alps in 2001 (distance: 525 km; cumulat...
Chapter
Die Wechselwirkungen zwischen Körper und Geist sind äußerst komplex und wissenschaftlich noch viel zu wenig erforscht. Jedenfalls befinden sie sich in einem sensiblen Gleichgewicht, das von vielen Faktoren abhängig ist. Bei einer Störung dieser Wechselwirkungen kann die Leistung vermindert werden. Zwei von vielen Störungsursachen stehen einander ge...
Article
Full-text available
Scientific data on the physiological profile of world class skiers are sparse. During the last decade the Austria Ski Team was the most successful in the world. It was the objective of this study to describe the physical and physiological characteristics of World Cup (WC) skiers. Twenty female and 28 male members of the Austrian WC Ski Team were ex...
Article
We report on a female patient with hereditary hemorrhagic teleangiectasia complicated by subacute thrombosis of the superior mesenteric vein. Despite gastrointestinal bleeding, anticoagulation therapy with heparin had to be performed to prevent bowel infarction. In this case, local vascular lesions with altered blood flow in combination with hyperf...
Article
Full-text available
The heart rate (HR) response to ultraendurance cycling is poorly understood. This case report describes the exercise intensity of ultraendurance cycling by means of HR monitoring in a well trained male amateur cyclist performing the Otztal Radmarathon twice en bloque in a circuit of two identical laps (distance 460 km; cumulative altitude differenc...
Article
Full-text available
The stress of strenuous long-term exercise may alter renal function. Whether this is also true for marathon cycling is unknown so far. The purpose of this study was to evaluate renal function following competitive marathon cycling. We investigated 38-male, well-trained recreational cyclists credibly not taking any kind of doping who participated in...
Article
We studied associations between iron status and early functional and structural vascular abnormalities in patients with hereditary hemochromatosis (HH). Iron may be involved in atherogenesis, and patients bearing a genetic mutation associated with HH are possibly at risk of developing coronary heart disease. We studied the vascular properties of 41...
Article
Full-text available
The acute effects of prolonged strenuous cycling on the plasma volume (PV) and haematocrit (Hct) are poorly investigated in study populations credibly not taking any kind of doping. The level of Hct decreases with increasing training load in both amateurs and professionals as a longterm consequence due to expanded PV. On a short-term basis, however...
Article
Full-text available
The aim of the study was to analyze the exercise intensity of recreational cyclists participating in a cycling-touring event. In 14 male healthy recreational cyclists heart rate (HR) monitoring was performed during the Ötztal Radmarathon 1999 (distance: 230 km; altitude difference: 5500 m) in order to evaluate the HR response and to estimate the ca...
Article
Full-text available
Knowledge is sparse about the extent of potential dehydration due to prolonged strenuous cycling and its haematological acute effects on the haematocrit (Hct) in study populations credibly not taking any kind of doping. With increasing training load levels of Hct and haemoglobin (Hb) decrease in both amateurs and professionals as a long-term conseq...
Article
Endothelial dysfunction is an early marker of atherosclerosis occurring in patients with type 2 diabetes mellitus. Endothelium-dependent dilation (EDD) has been shown to improve by combined therapy of insulin and metformin. Studies on endothelium-independent vasodilatory capacity, however, have had controversial results. We sought to investigate th...
Article
The present study provides biochemical evidence that exceptional cardiovascular strain associated with competitive ultramarathon cycling can induce subclinical myocardial damage even in the world's best ultraendurance athletes. The clinical meaning of this finding remains to be elucidated.
Article
Full-text available
The physiological effects of ultraendurance exercise are poorly investigated. The present case report describes the exercise intensity of ultraendurance cycling and its physiological impacts on various organ functions in an amateur cyclist performing the Ötztal Radmarathon twice en bloque in a circuit of 2 identical laps (distance 460 km; cumulativ...
Article
Full-text available
Circulating CD8(+) CD28(-) T cells were found to be expanded more in patients with ankylosing spondylitis than in an age-matched healthy population (41.2 +/- 17.7% versus 18.6 +/- 7.6%). The level of CD8(+)CD28(-) T cells was dependent on the disease status, but was independent of age. Most of the CD8(+) CD28(-) T cells produced perforin after stim...
Article
Pronounced postprandial lipemia has been established as a risk factor for cardiovascular disease, but reports regarding its effect on endothelial function have been controversial. In the present study the influence of a standardized fatty meal with its ensuing postprandial lipemia of highly varying magnitude on endothelium-dependent dilation (EDD)...
Article
Objectives: We sought to analyze diameter changes of conduit arteries in response to whole-body exercise and hypothesized that this response might be endothelium-dependent and, therefore, impaired in smokers. Background: Hyperemia and coincident vasodilation are pivotal mechanisms for meeting the increased metabolic demands of active muscle tiss...
Article
Full-text available
Cardiac troponin I (cTnI) is a very sensitive and specific biochemical marker for detecting minor myocardial damage even in the presence of simultaneous skeletal muscle injury. Extreme exercise is widely known to pose a variety of health hazards, although myocardial damage is not often considered among them. To determine whether strenuous ultraendu...
Article
This study provides biochemical evidence that ultraendurance exercise may cause subclinical myocardial damage, even in well-trained cyclists. The cellular nature of this damage and its clinical relevance remain unknown at present.
Article
To The Editor: The recent article by Hakim et al1 reports a beneficial effect of walking on coronary heart disease in elderly men; this has important clinical implications regarding physical activity as a modifiable risk factor. To help …
Article
Non invasive detection of coronary sclerosis is one of the most important topics in the evaluation of cardiac patients. Established and new screening tests were compared to the gold standard of coronary angiography in 50 patients. Electron beam computer tomography - evaluating the amount of coronary calcium - is able to detect localized and diffuse...
Article
TO THE EDITOR: Liver cirrhosis with portal hypertension is often associated with systemic hemodynamic alterations. Peripheral arterial vasodilatation, low systemic vascular resistance, and increased cardiac output are typical features of hyperdynamic circulation in these patients (1). In context of these observations, splanchnic arterial vasodilata...
Article
Full-text available
The importance of sexual transmission in the epidemiology of hepatitis C virus (HCV) infection is still controversial. To assess the risk of heterosexual HCV transmission, we examined eighty patients with chronic HCV-associated liver disease and their spouses in a cross-sectional clinical and serological cohort study. Serum samples from index patie...
Article
Cardiac troponins (troponin I and troponin T) are known to be highly sensitive parameters for the detection of myocardial injury, Coronary side branch occlusions after balloon angioplasty (PTCA) lead to a reduction of myocardial perfusion documented by angiography, This PTCA complication may be confirmed by various blood tests, Early diagnosis of m...
Article
Full-text available
the application of shocks in the usual dosage is safe is still controversial as minimal myocardial cell injury cannot be excluded. 2 If simultaneous muscle damage occurs the measurement of common cardiac markers, especially creatine kinase and its isoenzyme creatine kinase MB, lacks specificity. We therefore also measured the concentration of cardi...
Article
To establish possible myocardial damage by direct-current countershock, we measured plasma levels of troponin T after electrical cardioversion in 33 nonselected patients with atrial fibrillation or flutter. Unchanged normal levels of troponin T indicate that significant myocardial cell injury by shocks in the usual dosage is unlikely to occur.
Article
Full-text available
The importance of hepatitis C virus (HCV) infection as a cause of chronic liver disease has become clear with the introduction of serologic detection methods. On the basis of epidemiologic evidence the parenteral way of infection has been considered to be the most important one. However, the epidemiologic data regarding the significant route of inf...

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