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Assessment of resting electrocardiogram, P wave dispersion and duration in different genders applying for registration to the School of Physical Education and Sports – results of a single centre Turkish Trial with 2093 healthy subjects

  • Mustafa Yildiz (a1), Dilek Aygin (a2), Pinar Pazarli (a2), Ayse Sayan (a2), Olcay Semiz (a2), Osman Kahyaoglu (a2), Banu S. Yildiz (a3), Hakan Hasdemir (a4), Ibrahim Akin (a5), Nurgul Keser (a2) and Sevin Altinkaynak (a2)...



The 12-lead electrocardiogram shows a broad range of abnormal patterns in trained athletes. The primary end point of this study was to investigate P wave dispersion, and P wave durations and related factors in different genders applying for registration to the School of Physical Education and Sports.

Methods and Results

From 2006 to 2009, a total of 2093 students – 1674 boys with a mean age of 19.8 plus or minus 1.9 years and 419 girls with a mean age of 19.1 plus or minus 1.8 years – were included in the study. All 12 leads of the resting electrocardiogram were evaluated for P wave dispersion and electrocardiogram abnormalities. Baseline parameters such as age, body weight, body height, and body mass index, as well as electrocardiogram findings such as P wave maximal duration and P wave dispersion, were significantly higher in boys than in girls. Of all the parameters tested with correlation analysis, only gender (p = 0.03) (r = 0.04), body weight (p < 0.001) (r = 0.07), body height (p = 0.004) (r = 0.06), and body mass index (p = 0.01) (p = 0.05) were correlated with P wave dispersion.


The frequencies of all electrocardiogram abnormalities, P wave dispersion, and P wave maximal duration were higher in boys as compared with girls in an unselected student population applying for registration to the School of Physical Education and Sports; in addition, P wave dispersion was correlated with gender, body weight, body height, and body mass index.


Corresponding author

Correspondence to: Dr M. Yildiz, MD, PhD, Associate Professor, Cardiologist, Internal Medicine Specialist and Physiologist, Department of Cardiology, Kartal Koşuyolu Yüksek Ihtisas Educational and Research Hospital, Istanbul, Turkey. Tel: +90 0216 459 78 00; Fax: +90 0216 459 63 21; E-mail:


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