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Athlete's heart in prepubertal male swimmers

Published online by Cambridge University Press:  03 February 2006

Canan Ayabakan ,
Figen Akalin ,
Sami Mengütay ,
Birol Çotuk ,
İlhan Odabaş  and
Ali Özüak
Canan Ayabakan
Affiliation:
Pediatric Cardiology Department Marmara University, İstanbul, Turkey
Figen Akalin
Affiliation:
Pediatric Cardiology Department Marmara University, İstanbul, Turkey
Sami Mengütay
Affiliation:
School of Physical Education and Sports, Marmara University, İstanbul, Turkey
Birol Çotuk
Affiliation:
School of Physical Education and Sports, Marmara University, İstanbul, Turkey
İlhan Odabaş
Affiliation:
School of Physical Education and Sports, Marmara University, İstanbul, Turkey
Ali Özüak
Affiliation:
School of Physical Education and Sports, Marmara University, İstanbul, Turkey
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Abstract

To determine the cardiac response to intensive endurance training during prepuberty, we studied 22 male prebubertal swimmers who had been trained for at least 3 years, with a mean of 3.91 years and a standard deviation of 1.10 years, and 8 hours per week, the mean being 10.0 hours and the standard deviation 1.7 hours. The control group consisted of 21 boys of similar age, height and weight (p is more than 0.05 for all), who were not participating regularly in sporting activities. Left ventricular dimensions and systolic function were examined with M-Mode; velocities and durations of transmitral flow were measured with pulsed wave Doppler; and tissue Doppler velocities and durations were measured with pulsed wave tissue Doppler echocardiography. We determined the regional velocities of the lateral mitral annulus in four-chamber position, the left ventricular posterolateral wall, and the midseptum in long-axis position. Interventricular septal thickness, left ventricular posterior wall thickness, left ventricular mass and relative wall thickness were increased in swimmers (p is less than 0.05). All the tissue Doppler measurements were similar in both groups, except the septal isovolumic relaxation time. We observed that the left ventricular wall thickness had increased concentrically in prepubertal swimmers compared to controls, without a significant change in the left ventricular diastolic diameter. This finding is contrary to the previous studies on adult swimmers. Whether the structural changes observed in our study reflect the unique cardiac adaptation of the hearts of children to exercise will only be disclosed by longitudinal studies of prepubertal athletes.

Keywords

Echocardiographic changessportschildren
Type
Original Article
Information
Cardiology in the Young , Volume 16 , Issue 1 , January 2006 , pp. 61 - 66
Copyright
© 2006 Cambridge University Press

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References

Fagard R. Athlete's heart. Heart 2003; 89: 1455–1461.Google Scholar
Fagard RH. Athlete's heart: a meta-analysis of the echocardiographic experience. Int J Sports Med 1996; 17 (Suppl 3): S140–S144.Google Scholar
Caso P, D'Andrea A, Galderisi M, et al. Pulsed Doppler tissue imaging in endurance athletes: relation between left ventricular preload and myocardial regional diastolic function. Am J Cardiol 2000; 85: 1131–1136.Google Scholar
Sharma S, Maron BJ, Whyte G, Firoozi S, Elliot PM, McKenna WJ. Physiologic limits of left ventricular hypertrophy in elite junior athletes: relevance to differential diagnosis of athlete's heart and hypertrophic cardiomyopathy. J Am Coll Cardiol 2002; 40: 1431–1436.Google Scholar
Luckstead EF. Cardiac risk factors and participation guidelines for youth sports. Pediatr Ciln N Am 2002; 49: 681–707.Google Scholar
Briars GL, Bailey BJ. Surface area estimation: pocket calculator vs nomogram. Arch Dis Child 1994; 70: 246–247.Google Scholar
Devereux RB, Reicheck N. Echocardiographic determination of left ventricular mass: anatomic validation of the method. Circulation 1977; 55: 613–618.Google Scholar
Dubin J, Wallerson DC, Cody RJ, Devereux RB. Comparative accuracy of Doppler echocardiographic methods for clinical stroke volume determination. Am Heart J 1990; 120: 116–123.Google Scholar
Ayabakan C, Özkutlu S. Left ventricular myocardial velocities in healthy children: quantitative assessment by tissue Doppler echocardiography and relation to the characteristics of filling of the left ventricle. Cardiol Young 2004; 14: 156–163.Google Scholar
Mitchell JH. Haskell WL, Raven PB. Classification of sports. J Am Coll Cardiol 1994; 24: 864–866.Google Scholar
Pelliccia A, Maron BJ, Culasso F, Spataro A, Caselli G. Athlete's heart in women. JAMA 1996; 276: 211–215.Google Scholar
Medved R, Fabecic-Sbadi V, Medved V. Echocardiographic findings in children participating in swimming training. Int J Sports Med 1986; 7: 94–99.Google Scholar
Pelliccia A, Maron BJ, Spataro A, Proschan MA, Spirito P. The upper limit of physiologic cardiac hypertrophy in highly trained athletes. N Eng J Med 1991; 324: 295–301.Google Scholar
Zoncu S, Pelliccia A, Mercuro G. Assessment of regional systolic and diastolic wall motion velocities in highly trained athletes by pulsed wave Doppler tissue imaging. J Am Soc Echocardiogr 2002; 15: 900–905.Google Scholar
Vinereanu D, Florescu N, Sculthorpe N, Tweddel AC, Stephens MR, Fraser AG. Left ventricular long-axis diastolic function is augmented in the hearts of endurance-trained compared with strength-trained athletes. Clin Sci 2002; 103: 249–257.Google Scholar
Schmidt-Trucksass A, Schmid A, Haussler C, Huber G, Huonker M, Keul J. Left ventricular wall motion during diastolic filling in endurance-trained athletes. Med Sci Sports Exerc 2001; 33: 189–195.Google Scholar
Rowland TW, Delaney BC, Scionolfi SF. Athlete's heart in prepubertal children. Pediatrics 1987; 79: 800–804.Google Scholar
Rowland TW, Unnithan VB, MacFarlane NG, Gibson NG, Paton JY. Clinical manifestations of the “athlete's heart” in prepubertal male runners. Int J Sports Med 1994; 15: 515–519.Google Scholar
Telford RD, McDonald IG, Ellis LB, Chennells MH, Sandstrom ER, Fuller PJ. Echocardiographic dimensions in trained and untrained 12-year-old boys and girls. J Sports Sci 1988; 6: 49–57.Google Scholar
Triposkiadis F, Ghiokas S, Skoularis I, Kotsakis A, Giannakoulis I, Thanopoulos V. Cardiac adaptation to intensive training in prepubertal swimmers. Eur J Clin Invest 2002; 32: 16–23.Google Scholar
Obert P, Stecken F, Courteix D, Lecoq AM, Guenon P. Effect of long-term intensive endurance training on left ventricular structure and diastolic function in prepubertal children. Int J Sports Med 1998; 19: 149–154.Google Scholar
Ozer S, Cil E, Baltaci G, Ergun N, Ozme S. Left ventricular structure and function by echocardiography in childhood swimmers. Jpn Heart J 1994; 35: 295–300.Google Scholar
Manolas VM, Pavlik G, Banhegyi A, Faludi J, Sido Z, Olexo Z. Echocardiographic changes in the development of the athlete' s heart in 9 to 20-year-old male subjects. Acta Physiol Hung 2001; 88: 259–270.Google Scholar
Rowland T, Goff D, Popowski B, DeLuca P, Ferrone L. Cardiac responses to exercise in child distance runners. Int J Sports Med 1998; 19: 385–390.Google Scholar
Turley KR. Cardiovascular responses to exercise in children. Sports Med 1997; 24: 241–257.Google Scholar
Turley KR, Wilmore JH. Cardiovascular responses to treadmill and cycle ergometer exercise in children and adults. J Appl Physiol 1997; 83: 948–957.Google Scholar