Abstract

https://doi.org/10.58984/smbic250101059a

The aim of this study was to examine the relationship of various bioelectrical impedance analysis (BIA) body composition variables with kinematic and kinetic variables that were measured in vertical jumping task, in students of faculty of sport and physical education. The sample included 7 participants (6 males and 1 female, age 24.25±3.97 years, height 183.4±12.48 cm, weight 77.9± 13.36 kg, body mass index 23.0±1.46 kg/m2). BIA body composition variables (intra-celular water-ICW, extracelular water-ECW, proteins-PRT, minerals-MIN, body fat mass-BFM, skeletal muscle mass-SMM, visceral fat are-VFA) were measured via InBody 720, while kinematic and kinetic variables (maximal jump force-Fmax, maximal jump power-Pmax, maximal jump velocity-Vmax, concentric action jump time-T) were measured on force plates. Pearson correlation analysis revealed that significant association was established between: Fmax with BH, BM, ICW, ECW, PRT, and MIN, and Pmax with BH, BM, ICW, ECW, PRT, MIN, and SMM, while Vmax and T failed to made im-pact on BIA variables. Backward regression analysis (r2) identified BM as the most important deter-minants of Fmax (r2=0.878), and Pmax (r2=0.951), and BH and BMI as the most important dete-rminants of Vmax and T (Vmax:r2 0.564, T:r2=0.348). The present results suggest two important findings: 1) body mass plays crucial role in jumping maximal force and power manifestation; 2) body height and body mass index are the best BIA determinants of jumping velocity and time characteristics.