PhD Scientific Days 2022

Budapest, 6-7 July 2022

Correlations between body composition and endurance indices in youth national water polo players

dr. Zámodics Márk/SE Városmajori Szív és Érgyógyászati Klinika, dr. Babity Máté/ SE Városmajori Szív és Érgyógyászati Klinika, Rákóczi Réka/ SE Városmajori Szív és Érgyógyászati Klinika, Kovács Éva/ SE Városmajori Szív és Érgyógyászati Klinika, dr. Horváth Márton/ SE Városmajori Szív és Érgyógyászati Klinika, dr. Gregor Zsófia/ SE Városmajori Szív és Érgyógyászati Klinika, dr. Ujvári Adrienn/ SE Városmajori Szív és Érgyógyászati Klinika, dr. Kiss Anna Réka/ SE Városmajori Szív és Érgyógyászati Klinika, dr. Lakatos Bálint/ SE Városmajori Szív és Érgyógyászati Klinika, dr. Kovács Attila/ SE Városmajori Szív és Érgyógyászati Klinika, prof. dr. Merkely Béla/ SE Városmajori Szív és Érgyógyászati Klinika, dr. Kiss Orsolya/ SE Városmajori Szív és Érgyógyászati Klinika

Text of the abstract

Introduction: Body composition measurement is an important part of exercise testing, facilitating proper training and nutrition planning.
Aim: To compare endurance indicators obtained from extended cardiological screening of post-graduate water polo players with the results of body composition measurements.
Methods: During the sports cardiology screening, body composition measurements (Inbody 770) were performed in addition to spiroergometric exercise testing (Geratherm Respiratory Ergostik). Results were compared using Pearson correlation and Student's t-test.
Results: We have tested 96 youth water polo players (m:43, age:16,4±0,7y.). With increasing age, a decrease in body fat percentage (PBF, 17.1±2.95%, r= -0.3 p<0.01) and an increase in skeletal muscle mass (SMM=34.5±6.1kg) and fat-free body mass (FFMI, 19.2±1.55kg) were detected (r=0.6 p<0.01, r=0.6 p<0.01). Resting heart rate (72.6±1/min) decreased with increasing SMM and FFMI (r= -0.3 p=0.01; r= -0.3 p<0.01), while an increase in SMM was associated with an increase (r=0.2 p=0.03) in resting systolic blood pressure (135.77±11 mmHg). There was no correlation between resting diastolic blood pressure (78±8.5 mmHg), SMM, FFMI, PBF and body fat mass (BFM=12.4±0.9). Higher SMM (r= -0.3 p<0.01) and FFMI (r= -0.2 p=0.02) were associated with lower resting lactate (1.2±0.2mM) while elevated PBF (r= -0.4 p<0.01) and elevated BMF (r= -0.4 p<0.01) were associated with lower exercise time (15±4.4 min). SMM and FFMI had no effect on exercise time. SMM (r=0.4 p<0.01) and FFMI (r=0.4 p<0.01) were positively correlated with maximal aerobic capacity (48.3±2.1 ml/kg/min) while BFM (r= -0.6 p<0.01) and PBF (r= -0.7 p<0.01) were negatively correlated.
Conclusion: Our studies have demonstrated that body composition is correlated with endurance performance in junior water polo players. Higher BFM and PBF have a negative effect on fitness, whereas higher FFMI and SMM have a positive effect and provide a more favourable cardiac status.