Echocardiographic assessment of left ventricular performance before and after marathon running

Perrault, Hélène; Péronnet, François; Lebeau, R; Nadeau, Réginald

doi:10.1016/0002-8703(86)90316-9

Cited by 41 publications

(25 citation statements)

References 27 publications

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“…We have described a small, non-significant reduction in stroke volume (6 %) during prolonged effort, secondary to a decrease in EDV late in the exercise session ; this decrease is markedly less than in some studies, but comparable with that in one echocardiography study [19]. However, previous studies have examined subjects after endurance events ranging from 60 min in duration [13] to 42 km in length (e.g.…”

Section: Volumesmentioning

confidence: 52%

“…However, previous studies have examined subjects after endurance events ranging from 60 min in duration [13] to 42 km in length (e.g. marathon) [19] to the Ironman Triathlon [10][11][12]16] to a 24 h run [8,9]. Comparison between previous studies and the present data remains problematical, because most of the former assessed LV function in the supine position, and none monitored fluid consumption.…”

Section: Volumesmentioning

confidence: 71%

“…Some investigations have described an impairment of LV function following exercise of a prolonged nature [8][9][10][11][12][13][14][15]. It is possible that a decline in ventricular output involves a depression in the contractile state ; however, despite reports of a transient decline in systolic function [8][9][10][11][12][13][14]16,17] and diastolic filling characteristics [9,13,16], several studies have failed to report a decline in LV performance [18][19][20][21]. The disparate findings (Table 1) reflect a wide range of study designs and physiological conditions.…”

Section: Studymentioning

confidence: 99%

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Left ventricular performance during prolonged exercise: absence of systolic dysfunction

2001

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We assessed left ventricular systolic and diastolic performance during and after prolonged exercise under controlled conditions in a group of healthy, trained men. Previous studies have examined the effects of prolonged effort on left ventricular function, yet it remains unclear whether or not left ventricular dysfunction (e.g. cardiac fatigue) can be produced under such conditions. We studied 15 healthy men, aged 27+/-1 years (mean+/-S.E.M.). Subjects exercised on bicycles at a constant work rate (60% of maximum oxygen uptake per min) for 150 min. Measurements of gas exchange, blood pressure and haematocrit were obtained, concurrent with the assessment of left ventricular function using equilibrium radionuclide angiography, at rest, during exercise (every 30 min) and after 30 min of recovery. Fluid replacement was provided and monitored during the exercise period. The baseline resting and exercise ejection fractions were 66+/-2% and 78+/-2% respectively. During exercise, subjects consumed 1816+/-136 ml of fluid, and the haematocrit had increased at 120 min of exercise (from 47.2%+/-0.6 to 49.9+/-0.8%; P<0.05). There was no change in either systolic or diastolic blood pressure throughout the exercise period, but heart rate drifted upwards from 141+/-2 beats/min after 30 min to 154+/-3 beats/min after 150 min (P<0.05). There was a small decline (8%; P<0.05) in end-diastolic volume at 150 min. No changes were observed in left ventricular ejection fraction, the pressure/volume ratio or end-systolic volume. After 30 min of sitting in recovery, heart rate was still higher than the pre-exercise value (84+/-3 compared with 69+/-2 beats/min; P<0.05), as were measures of peak filling rate and time to peak filling (P<0.05). The ejection fraction in the post-exercise recovery period was similar to the pre-exercise value. The results indicate that prolonged exercise of moderate duration may not induce abnormal left ventricular systolic function or cardiac fatigue during exercise.

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Section: Volumesmentioning

confidence: 52%

Section: Volumesmentioning

confidence: 71%

Section: Studymentioning

confidence: 99%

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Left ventricular performance during prolonged exercise: absence of systolic dysfunction

2001

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“…11,15,17,22,27,51 There was a significant difference with respect to interventricular septum thickness between control subjects and endurance-trained athletes (8.8 versus 10.5 mm, PϽ0.001) and between endurance-trained athletes and strength-trained athletes (10.5 versus 11.8 mm, Pϭ0.005) but not between endurance-trained athletes and combined endurance-trained and strength-trained athletes (Pϭ0.042).…”

Section: Interventricular Septum Thicknessmentioning

confidence: 99%

The Athlete’s Heart

Pluim

Zwinderman²,

Laarse³

et al. 2000

Circulation

846

293

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Background-It has been postulated that depending on the type of exercise performed, 2 different morphological forms of athlete's heart may be distinguished: a strength-trained heart and an endurance-trained heart. Individual studies have not tested this hypothesis satisfactorily. Methods and Results-The hypothesis of divergent cardiac adaptations in endurance-trained and strength-trained athletes was tested by applying meta-analytical techniques with the assumption of a random study effects model incorporating all published echocardiographic data on structure and function of male athletes engaged in purely dynamic (running) or static (weight lifting, power lifting, bodybuilding, throwing, wrestling) sports and combined dynamic and static sports (cycling and rowing

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“…The existence of a decline in left ventricular (LV) function after prolonged exercise remains controversial (Perrault et al 1986;McGavock et al 2002;McGavock et al 2003). However, we (George et al 2004;Whyte et al 2005), and others (Manier et al 1991;Lucia et al 1999), have consistently observed a decline in LV diastolic function after running a marathon race, in the absence of changes in indices of LV systolic function.…”

mentioning

confidence: 99%

Mitral annular myocardial velocity assessment of segmental left ventricular diastolic function after prolonged exercise in humans

George

Oxborough

Forster

et al. 2005

The Journal of Physiology

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We assessed segmental and global left ventricular (LV) diastolic function via tissue-Doppler imaging (TDI) as well as Doppler flow variables before and after a marathon race to extend our knowledge of exercise-induced changes in cardiac function. Twenty-nine subjects (age 18-62 year) volunteered to participate and were assessed pre-and post-race. Measurements of longitudinal plane TDI myocardial diastolic velocities at five sites on the mitral annulus included peak early myocardial tissue velocity (E ), peak late (or atrial) myocardial tissue velocity (A ) and the ratio E /A . Standard pulsed-wave Doppler transmitral and pulmonary vein flow indices were also recorded along with measurements of body mass, heart rate, blood pressures and cardiac troponin T (cTnT), a biomarker of myocyte damage. Pre-to post-race changes in LV diastolic function were analysed by repeated measures ANOVA. Delta scores for LV diastolic function were correlated with each other and alterations in indices of LV loading. Diastolic longitudinal segmental and mean TDI data were altered post-race such that the mean E /A ratio was significantly depressed (1.51 ± 0.34 to 1.16 ± 0.35, P < 0.05). Changes in segmental and global TDI data were not related to an elevated post-race HR, a decreased post-race pre-load or an elevated cTnT. The pulsed wave Doppler ratio of peak early transmitral flow velocity (E)/peak late (or atrial) flow velocity (A) was also significantly reduced post-race (1.75 ± 0.46 to 1.05 ± 0.30, P < 0.05); however, it was significantly correlated with post-race changes in heart rate. The lack of change in E/E from pre-to post-race (3.4 ± 0.8 and 3.3 ± 0.7, respectively) suggests that the depression in diastolic function is likely to be due to altered relaxation of the left ventricle; however, the exact aetiology of this change remains to be determined.

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Echocardiographic assessment of left ventricular performance before and after marathon running

Cited by 41 publications

References 27 publications

Left ventricular performance during prolonged exercise: absence of systolic dysfunction

Left ventricular performance during prolonged exercise: absence of systolic dysfunction

The Athlete’s Heart

Mitral annular myocardial velocity assessment of segmental left ventricular diastolic function after prolonged exercise in humans

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