scholarly journals Bioelectrical impedance vector analysis (BIVA) in university athletes

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Priscila Custódio Martins ◽  
Luis Alberto Gobbo ◽  
Diego Augusto Santos Silva
Keyword(s):  
Cell Mass ◽  
Team Sports ◽  
Bioelectrical Impedance ◽  
Reference Population ◽  
Vector Analysis ◽  
Hydration Status ◽  
Bioelectrical Impedance Vector Analysis ◽  
Adequate Hydration ◽  
Impedance Vector ◽  
Individual Sports

Abstract Background Bioelectrical impedance vector analysis (BIVA) is able to identify differences in hydration status and body composition components, such as body cell mass (BCM) by means of plotting individuals in ellipses, when comparing groups with different characteristics. Objective Compare the confidence and tolerance ellipses of BIVA in individual and team sports athletes with a non-athlete reference population. Design and participants One hundred sixty-seven college athletes (team sports: 117 athletes, individual sports: 50 athletes) aged between 18 and 35 years. Bioelectrical impedance was used to measure resistance (R) and reactance (Xc) values that were used in the BIVA analysis to identify hydration status and BCM, respectively. Hotelling’s t-test was used to identify differences between groups in the confidence ellipses and the comparison was made with a non-athlete Italian reference population. Results There were no differences between male team sports and individual athletes (p = 0.151) and for female athletes (p = 0.624). Most athletes were located in the 50% tolerance ellipses, indicating adequate hydration. Compared to the Italian a non-athlete population, athletes of both sexes presented left impedance vector deviation in the minor axis (Xc) of the tolerance ellipses, indicating higher BCM. Conclusion There were no differences in BIVA between team and individual sports athletes, but most athletes presented an adequate hydration state and, compared to a non-athlete population, the athletes of the present study presented higher BCM.

scholarly journals Applications of Bioelectrical Impedance Vector Analysis (BIVA) in the Study of Body Composition in Athletes

2021 ◽  
Vol 11 (21) ◽  
pp. 9781
Author(s):  
Sandra de la Cruz Marcos ◽  
Mª Paz Redondo del Río ◽  
Beatriz de Mateo Silleras
Keyword(s):  
Body Composition ◽  
Cell Mass ◽  
Bioelectrical Impedance ◽  
Compartment Model ◽  
Vector Analysis ◽  
Qualitative Assessment ◽  
Hydration Status ◽  
Bioelectrical Impedance Vector Analysis ◽  
Measurement Protocol ◽  
Impedance Vector

The study of body composition (BC) allows evaluating nutritional status, optimizing competitive performance, and monitoring the success of training regimens in athletes. Since BC reference techniques are expensive and/or invasive, in practice simpler, less expensive, and safer methods such as anthropometry are often used. The problem is that anthropometry requires a qualified anthropometrist, a rigorous measurement protocol using validated equipment, and a lengthy procedure because of its limited accuracy. Bioimpedance analysis (BIA) is an indirect method for estimating BC in a simple, fast, inexpensive, noninvasive, accurate, and reproducible manner. Despite the limitations of conventional BIA, it is still the most commonly used method for assessing BC in athletes. However, bioelectrical impedance vector analysis (BIVA) allows qualitative assessment of body cell mass (BCM) and hydration status without the need for biological assumptions and without being subject to conventional BIA errors. The purpose of this article was to demonstrate the uses and applications of BIA in the study of the BC and physical characteristics of athletes. For example, several practical cases of athletes from different sports were compared. The results obtained from somatotype studies, conventional BIA, and BIVA were included. BIVA interpretation and somatotype were consistent for all cases analyzed, but BIVA also provided information about hydration and BCM. The application of BIVA in the assessment of athletes can improve BC studies in sports because it is fast, simple, and reliable and neither imposes two-compartment-model limitations on BC estimation nor requires any biological assumptions.

scholarly journals Bioelectrical Impedance Vector Analysis of Young Elite Team Handball Players

2021 ◽  
Vol 18 (24) ◽  
pp. 12972
Author(s):  
Andrea Di Credico ◽  
Giulia Gaggi ◽  
Anastasios Vamvakis ◽  
Sofia Serafini ◽  
Barbara Ghinassi ◽  
...  
Keyword(s):  
Reference Values ◽  
Young Male ◽  
Bioelectrical Impedance ◽  
Reference Population ◽  
Vector Analysis ◽  
Data Set ◽  
Male And Female ◽  
Bioelectrical Impedance Vector Analysis ◽  
Team Handball ◽  
Impedance Vector

Team handball is a highly dynamic sport where physical demands differ between categories and roles. Thus, physical characteristics are fundamental for the final performance. This study aims to (a) characterize a sample of young male and female elite team handball players with a non-athletic reference population; (b) to generate their 50%, 75%, and 95% percentiles of the bioelectrical variables. The study included 55 young elite team handball players (Males, n = 37, age = 17.0 ± 1.2 yrs, height = 185.8 ± 7.3 cm, weight = 82.0 ± 11.0 kg, body mass index (BMI) = 23.7 ± 2.5; Females, n = 18, age = 17.8 ± 0.9 yrs, height = 171.2 ± 6.4 cm, weight = 67.4 ± 7.2 kg, BMI = 23.0 ± 2.0). Height and bioelectrical variables were assessed in a state of euhydration and standard conditions. Bioelectrical impedance vector analysis (BIVA) was used to characterize the bioelectrical vector (BIA vector) distribution pattern for each group. Compared to the reference values, BIA vector showed statistically significant differences in males U17 (n = 19, T2 = 51.0, p < 0.0001), males U19 (n = 18, T2 = 82.0, p < 0.0001) and females U19 (n = 18, T2 = 85.8, p < 0.0001). Male groups were also bioelectrically different (T2 = 13.7, p = 0.0036). BIVA showed specific bioelectrical characteristics in young male and female elite handball players. This study provides an original data set of bioelectrical impedance reference values of young male and female elite team handball players. Our result might help to interpret individual bioimpedance vectors and define target regions for young handball players.

scholarly journals Bioelectrical Impedance Vector Analysis and Phase Angle on Different Oral Zinc Supplementation in Eutrophic Children: Randomized Triple-Blind Study

Nutrients ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 1215 ◽  
Author(s):  
Karina M. Vermeulen ◽  
Márcia Marília G. D. Lopes ◽  
Camila X. Alves ◽  
Naira J. N. Brito ◽  
Maria das Graças Almeida ◽  
...  
Keyword(s):  
Cell Membrane ◽  
Phase Angle ◽  
Cell Mass ◽  
Serum Zinc ◽  
Bioelectrical Impedance ◽  
Vector Analysis ◽  
Body Cell Mass ◽  
Body Cell ◽  
Bioelectrical Impedance Vector Analysis ◽  
Impedance Vector

The parameters derived from bioelectrical impedance, phase angle (PA) and bioelectrical impedance vector analysis (BIVA) have been associated with cell membrane integrity and body cell mass. Zinc is a micronutrient that exerts important structural functions and acts in maintaining cellular functionality. To evaluate cell integrity and body cell mass, PA and BIVA were evaluated in children orally supplemented with zinc at different concentrations. Anthropometric, bioelectrical (resistance and reactance) and serum zinc variables were collected from two randomized, triple-blind, controlled clinical trials. Sampling was composed of 71 children consisting of three groups: a control group who received a placebo and two experimental groups who received oral supplementation of 5 or 10 mg-Zn/day for three months. The three groups presented increases (p < 0.001) in the linear height and weight. In the group supplemented with 10 mg-Zn/day, there was an increase in reactance values (p = 0.036) and PA (p = 0.002), in addition to vector displacement (p < 0.001) in relation to the confidence ellipses. An increase in serum zinc concentration was found (p < 0.001) in all three groups. Whit this, the supplementation with 10 mg-Zn/day promotes changes in the integrity of the cell membrane associated with the increase in the cellular mass of healthy children.

scholarly journals Bioelectrical impedance vector analysis (BIVA) for measuring the hydration status in young elite synchronized swimmers

PLoS ONE ◽  
2017 ◽  
Vol 12 (6) ◽  
pp. e0178819 ◽  
Author(s):  
Marta Carrasco-Marginet ◽  
Jorge Castizo-Olier ◽  
Lara Rodríguez-Zamora ◽  
Xavier Iglesias ◽  
Ferran A. Rodríguez ◽  
...  
Keyword(s):  
Bioelectrical Impedance ◽  
Vector Analysis ◽  
Hydration Status ◽  
Bioelectrical Impedance Vector Analysis ◽  
Impedance Vector

Bioelectrical Impedance Vector Analysis (BIVA) in patients on the waiting list for liver transplant: associated factors and prognostic impact

Nutrition ◽  
2021 ◽  
pp. 111528
Author(s):  
Bárbara Chaves Santos ◽  
Lívia Garcia Ferreira ◽  
Helem Sena Ribeiro ◽  
Maria Isabel Toulson Davisson Correia ◽  
Agnaldo Soares Lima ◽  
...  
Keyword(s):  
Liver Transplant ◽  
Associated Factors ◽  
Bioelectrical Impedance ◽  
Waiting List ◽  
Vector Analysis ◽  
Prognostic Impact ◽  
Bioelectrical Impedance Vector Analysis ◽  
Impedance Vector
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