Grundlagen zur Bewertung leistungsphysiologischer Anpassungsvorgänge

Kindermann, Wilfried; Keul, J.; Reindell, H

doi:10.1055/s-0028-1107950

Cited by 31 publications

(7 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A stroke volume larger than normal has also been found by other investigators, who used invasive techniques (5,10,42,62). However, objections were made against such invasive results since they could hardly be gained under real resting conditions.…”

Section: Ah's Function At Restmentioning

confidence: 71%

Athlete's Heart - a Review of Its Historical Assessment and New Aspects

Rost¹,

Hollmann²

1983

Int J Sports Med

View full text Add to dashboard Cite

Section: Ah's Function At Restmentioning

confidence: 71%

Athlete's Heart - a Review of Its Historical Assessment and New Aspects

Rost¹,

Hollmann²

1983

Int J Sports Med

View full text Add to dashboard Cite

“…The sympathetic system is, as a result of its cardiocirculatory and metabolic (7) effects, important for an adequate substrate supply to the working musculature. Intensive endurance training leads to an increase of the stroke volume and of the maximum cardiac output, which leads to an improvement of the oxygen intake capability (4,15,16,26). The training-dependent adaptation of the autonomous nervous system, i.e., an increased vagotonic tone and a reduced sympathetic activity, is regarded to be the cause of the training bradycardia (5).…”

Section: Discussionmentioning

confidence: 99%

Plasma Catecholamines in Trained and Untrained Volunteers During Graduated Exercise*

Lehmann¹,

Keul²,

Huber³

et al. 1981

Int J Sports Med

Self Cite

120

View full text Add to dashboard Cite

Ten untrained subjects and nine trained cyclists were examined during graduated ergometric exercise in the supine position. The levels of epinephrine and norepinephrine in the blood as well as the heart rate and oxygen intake were determined. At submaximum levels, epinephrine, norepinephrine, lactate, and the heart rate are lower in tthe trained than in the untrained subjects; the relative oxygen intake shows no significant difference. The ergometric work capacity is approximately 30% higher in the trained cyclists. During maximum ergometric exercise, the plasma catecholamines, lactate, and the heart rate show no differences between the two groups; the oxygen intake is approximately 30% higher in the trained than in the untrained subjects. A direct relationship exists between catecholamine levels and lactate; however, this relationship becomes less exact during higher exercise intensities: In reference to the same catecholamine concentration, the lactate levels as well as the submaximum heart rates are higher in the trained than in the untrained subjects, the cause of which could be an increased beta-adrenoceptor sensitivity in the trained subjects.

show abstract

“…10) (31). During physical exercise the increase in contractility of the athlete's heart is reduced too, but this can not be seen as an indication of myocardial insufficency, but rather as the result of the decreased external sympathetic drive, since contractility reduction occurs without an increase in the enddiastolic pressure (15,16,28,31).…”

Section: MLmentioning

confidence: 99%

The Athlete's Heart - Haemodynamics and Structure*

Keul¹,

Hh²,

Lehmann³

et al. 1982

Int J Sports Med

Self Cite

View full text Add to dashboard Cite

The term the "Athlete's Heart" was first used over 80 years ago, when by the use of percussion examination an increase in the heart size of cross country skiers was observed (9). Following these investigations the increase in the heart of endurance trained athletes could also be confirmed using radiographic methods (5, 25). An increase in the heart size is also a result of various pathologic processes, for instance a myocarditis, a pressure-or volume-overloading of the heart, a myocardial infarction etc., thus for many decades the enlarged heart of trained athletes was often regarded as being pathologic.Many investigations in particular the book by Reindell et a!. 1960 (28)using pathologico-anatomical, radiographic, electrocardiographic, haemodynaniic and spiroergometric investigations -showed that the heart, enlarged as a result of endurance training was not damaged but was an indication of a particularly efficient heart. Despite these investigations other researchers remained sceptical and repeatedly described the athlete's-heart-syndrome as pathologic: physiological variabilities were not recognized or often haemodynamic values were misinterpreted. Even in the American standard work by Friedberg "Diseases of the Heart" one could still read 7 years ago, that the athlete's heart was a syphilitically or rheumatically damaged heart (6). Recent investigations in particular those using echocardiography have produced a series of new results, which have increased our understanding about the trained heart and in particular about the different effects of various training types (1-4, 7, 8, 10-17, 27-35, 37-39).

show abstract

Grundlagen zur Bewertung leistungsphysiologischer Anpassungsvorgänge

Cited by 31 publications

References 2 publications

Athlete's Heart - a Review of Its Historical Assessment and New Aspects

Athlete's Heart - a Review of Its Historical Assessment and New Aspects

Plasma Catecholamines in Trained and Untrained Volunteers During Graduated Exercise*

The Athlete's Heart - Haemodynamics and Structure*

Contact Info

Product

Resources

About