Luis Alberto Gobbo
@fct.unesp.br
Associate Professor, Kinesiology Department, School of Technology and Science
São Paulo State University - UNESP
@fct.unesp.br
Associate Professor, Kinesiology Department, School of Technology and Science
São Paulo State University - UNESP
The project "BIA Brasil: A National Multicenter Collaboration Study" aims to establish normative values and tolerance ellipses for bioelectrical impedance parameters, including phase angle (AngF) and bioelectrical impedance vector analysis (BIVA), in a comprehensive sample of Brazilian university staff and their immediate family members. Through a cross-sectional design, which will later serve as a basis for longitudinal studies, data will be collected at 25 research centers distributed across the five regions of Brazil. Body composition parameters will be assessed using bioelectrical impedance spectroscopy (BIS) and localized assessment methods (L-BIA), in addition to evaluating sociodemographic variables, lifestyle habits, mental health, physical activity, sedentary behavior, and quality of life.
The project aims to investigate bioelectrical impedance (BIA) parameters and their association with health determinants in families with different levels of social vulnerability. This study will compare two groups: university employees in Presidente Prudente, SP, and their direct relatives (low social vulnerability) and residents from a peripheral neighborhood in Álvares Machado, SP (high social vulnerability), matched by age and sex. In addition to BIA parameters, evaluations will include body composition, quality of life, nutritional habits, physical activity levels, and clinical outcomes. The analysis will seek to identify patterns associated with social vulnerability and provide support for public health interventions that promote equity and well-being.
The present study compares the BIA and L-BIA parameters in physical training sessions with varying volumes and intensities in young adults with experience in physical activities. To this end, physically active young people of both sexes, aged between 18 and 40, will be recruited to perform RT sessions in different zones of training volume and intensities. The BIA and L-BIA parameters will be measured using electrical bioimpedance, using a 50 kHz frequency analyzer. Resistance and reactance measurements will be obtained to calculate the phase angle. L-BIA will be performed on muscles specific to the sports training modality. Acute assessments will be carried out pre-training, immediately post-training, and then at minutes 15', 30', 45' and 60' post-training, and 24 hours after the training session. Chronic assessments will be carried out in periods of 4 weeks after the start of training.
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