BIOELECTRICAL IMPEDANCE ANALYSIS OF BODY COMPOSITION IN KARATE ATHLETES REGARDING THE PREPARATORY PERIOD

Abstract

The aim of the paper was to asses changes in body composition using bioelectrical impedance analysis (BIA) methodology in members of national karate team after teen week preparatory training period. The investigation was carried out on 11 male karate contestants, aged 18 to 28 years mean age (21.82 3.58). The body composition was analyzed with In Body 720. The BIA outcomes were divided in 3 group of variables: body fl uid and body composition variables, obesity diagnose variables and segmental analysis variables. All BIA variables were insignifi cantly higher at second measuring (p>005). Only Body mass index (BMI=24.1 vs 24.55); mineral (4.69 kg vs 4.77 kg) and osseous (3.85 kg vs 3.92 kg), were signifi - cantly higher (p≤0.05) after preparatory period. Body fat mass (BFM=10.34 kg vs 10.75 kg, p=0.329) and body fat percent (BF%= 12.73 vs13.22%) insignifi - cantly increased after preparatory period. The skeletal mass has changed from 40.03kg to 40.55kg (p=0.276). Body composition analysis, changes in weight, BMI and body fl uids are essential for weight categories dependent sports such as karate. Positive changes in body components and in body fl uids suggest that the training process during the preparatory period did not show negative effects on body components and the hydration of the karate athletes.