Results 141 to 150 of about 4,114 (172)

Bioimpedance Patterns and Bioelectrical Impedance Vector Analysis (BIVA) of Body Builders

Nutrients, 2023
Bodybuilders are athletes characterized by high muscle mass. During competitions, the evaluation is performed based on aesthetic parameters. The study aims to provide normative references of body composition with the vector bioimpedance methodology (BIVA). A second aim is to compare BIVA assessments performed on both sides and the upper and lower body.
Pascal Izzicupo, Gabriele Mascherini, Cristian Petri   +2 more
exaly   +4 more sources

Differentiation of Cardiac and Noncardiac Dyspnea Using Bioelectrical Impedance Vector Analysis (BIVA)

Journal of Cardiac Failure, 2012
There is no gold standard for the differential diagnosis of acute dyspnea despite the usefulness of N-terminal pro-B-type natriuretic peptide (NT-proBNP) and lung ultrasound. No study has evaluated the contribution of bioelectrical impedance vector analysis (BIVA) in discriminating between cardiac and noncardiac dyspnea.
Mario Plebani, Alan Maisel, Marta Codognotto   +2 more
exaly   +4 more sources

Bioelectric Impedance Vector Analysis (BIVA) in Hospitalised Children; Predictors and Associations With Clinical Outcomes [PDF]

European Journal of Clinical Nutrition, 2019
Clinical use of bioelectric impedance is limited by variability in hydration. Analysis of raw bioelectric impedance vectors (BIVA), resistance (R), reactance (Xc) and phase angle (PA) may be an alternative for monitoring disease progression/treatment. Clinical experience of BIVA in children is limited.
Sophie Roche, Mary S Fewtrell, Nara E Lara-Pompa   +2 more
exaly   +7 more sources

Combined Evaluation of Nutrition and Hydration in Dialysis Patients With Bioelectrical Impedance Vector Analysis (BIVA)

Clinical Nutrition, 2014
Body hydration changes continuously in hemodialysis patients. The Subjective Global Assessment (SGA) is used for the nutritional evaluation but it does not allow a direct evaluation of hydration. Bioelectrical impedance vector analysis (BIVA) is very sensitive to hydration.
Marta Codognotto, Antonio Piccoli
exaly   +4 more sources

Efficacy of Specific Bioelectrical Impedance Vector Analysis (BIVA) for Assessing Body Composition in the Elderly

Journal of Nutrition, Health and Aging, 2013
Objectives: This study aimed to ascertain the efficacy of bioelectrical impedance vector analysis (BIVA) in assessing body composition in the elderly by comparing findings with the results of dual-energy X-ray absorptiometry (DXA), and to test an ...
Roberto Buffa, Elisabetta Marini, Giuseppe Sergi   +2 more
exaly   +3 more sources

Ultrasonography of Quadriceps Femoris Muscle and Subcutaneous Fat Tissue and Body Composition by BIVA in Chronic Dialysis Patients [PDF]

Nutrients, 2020
Protein Energy Wasting (PEW) in hemodialysis (HD) patients is a multifactorial condition due to specific pathology-related pathogenetic mechanisms, leading to loss of skeletal muscle mass in HD patients. Computed Tomography and Magnetic Resonance Imaging
Pasquale Esposito, Michele Provenzano, Enrico Fiaccadori   +2 more
exaly   +3 more sources

Bioelectrical Impedance Vector Analysis (BIVA) as a Method to Compare Body Composition Differences According to Cancer Stage and Type [PDF]

Clinical Nutrition ESPEN, 2019
Background & aims: Bioelectrical impedance vector analysis (BIVA) is a non-invasive method of measuring human body composition. This offers the potential to evaluate nutritional and hydration states in cancer.
John Ellershaw, Catriona R Mayland, Stephen Mason   +2 more
exaly   +4 more sources

Hydration in Young Water Polo Players: A Bioelectrical Impedance Vector Analysis (BIVA) Approach

Heliyon
This study aimed to assess hydration status before and after training using the bioelectrical impedance vector analysis (BIVA) method.Pre-post quasi-experimental designs.Twenty-four young water polo players (mean age: 13.30 ± 0.55) underwent assessment for bioelectrical and anthropometric measurements before and after a water polo training session.Most
Ruggero D'Anastasio, Pascal Izzicupo, Andrea di Blasio   +2 more
exaly   +6 more sources

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Near Optimal Decoding for TCM Using the BIVA and Trellis Shaping

1999
In this paper a bootstrap iterative decoding technique concatenated with the Viterbi algorithm (BIVA) and trellis shaping for trellis-coded modulation (TCM) is proposed. The concept of a bootstrap decoding is introduced first and then the new metric functions which take into account the bootstrap iterative decoding algorithm for TCM systems are derived.
Qi Wang, Lei Wei 0003, Rodney A. Kennedy
openaire   +2 more sources

Computationally efficient turbo decoding with the bi-directional Viterbi algorithm (BIVA)

Proceedings of IEEE International Symposium on Information Theory, 2002
An algorithm for decoding parallel concatenated codes (turbo codes) that replaces the BCJR algorithm with a new Viterbi type algorithm is presented. Replacement of the BCJR algorithm with the new algorithm results in a gain in computational efficiency with only a slight loss in BER performance.
M.B. Shoemake, C. Heegard
openaire   +1 more source