Bioelectrical Impedance of Vectorial Analysis and Phase Angle in Adolescents

Mathias-Genovez, Mariana G.; Oliveira, Cristiana Cortes de; Camelo, José Simon; Ciampo, Luíz Antônio Del; Monteiro, Jacqueline Pontes

doi:10.1080/07315724.2015.1027798

Cited by 12 publications

(17 citation statements)

References 36 publications

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“…In our sample of soccer players, age-related differences were found for PhA, with U-13 players (5.2 ± 0.4°) displaying significantly lower PhA values than U-15 (6.2 ± 0.4°) and U-17 (6.5 ± 0.5°) players. This finding is in agreement with previous investigations showing positive associations between PhA and age during childhood and adolescence periods [ 36 , 37 ]. With growth and maturation, the relative contribution of protein and minerals to the LSTM compartment increases, which could explain the gains in PhA during adolescence [ 28 ], since PhA has been directly related to BCM [ 19 ].…”

Section: Discussionsupporting

confidence: 94%

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Phase Angle Is Related to 10 m and 30 m Sprint Time and Repeated-Sprint Ability in Young Male Soccer Players

Martins

Teixeira

Guglielmo

et al. 2021

IJERPH

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Objective: To examine the association between phase angle (PhA) and bioelectrical impedance vector analysis (BIVA) and components of physical performance in male youth soccer players. Design: Cross-sectional. Methods: Sixty-two players from two professional soccer academies were recruited. Electrical bioimpedance was used to obtain the PhA and BIVA. Body fat (BF) and lean soft tissue mass (LSTM) were measured by dual-energy X-ray absorptiometry. All players completed physical tests including the standing long jump (SLJ), Carminatti’s test (peak speed at the end of the test, PST-CAR), 10 m and 30 m straight-line sprints, and repeated-sprint ability (RSA) test (RSAbest and RSAmean times). Results: Adjusting for chronological age, BF, and LSTM, multiple regression analysis outputs showed that PhA remained inversely related to RSAmean (β = −0.362; p < 0.001), RSAbest (β = −0.239; p = 0.020), 10 m (β = −0.379; p = 0.012), and 30 m (β = −0.438; p < 0.001) sprint times, while the association with PST-CAR and SLJ performance were statistically non-significant. In addition, BIVA showed that differences in confidence ellipses were found between athletes in the reference population and the study sample (p < 0.05). The tolerance ellipses indicated that the athletes in the present study had more total body water (TCW) and lower proportions of intracellular water (ICW) to extracellular water (ECW). The reference population had more TCW and ICW/ECW. Conclusions: Our results suggest that young soccer players with higher PhA values, indicating better cell integrity and functionality, have better performance in typical anaerobic running activities, such as sprinting speed and RSA performance, adjusted to age and body composition characteristics.

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Section: Discussionsupporting

confidence: 94%

“…PhA is a widely explored cellular health marker in clinical and interventional studies [ 12 ] and pediatric populations [ 36 , 37 ]. On the other hand, the potential role of PhA in physical performance outcomes in youth athletes is still poorly understood.…”

Section: Discussionmentioning

confidence: 99%

Phase Angle Is Related to 10 m and 30 m Sprint Time and Repeated-Sprint Ability in Young Male Soccer Players

Martins

Teixeira

Guglielmo

et al. 2021

IJERPH

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“…Phase angle presented a direct association with handgrip strength in bivariate analyses. Studies have found a direct association between phase angle and functional indexes, 5 as handgrip strength in adults with cancer, 13 knee extension strength and maximum quadriceps strength in older adults, 4 nutritional status in indigenous children 16 and adolescents, 14 and adults diagnosed with HIV + . 3 However, in the present study, there was no association between phase angle and handgrip strength in the adjusted analyses, which may be justified by changes in body composition caused by the onset of puberty, level of HIV infection, and TARV.…”

Section: Discussionmentioning

confidence: 99%

“…Observational studies have found a direct association between phase angle and different functional indexes, such as handgrip strength, knee extension strength, and maximum quadriceps strength . Phase angle was also directly associated with nutritional status in adults, and in children and adolescents . In adults diagnosed with HIV + , higher phase angle values were associated with lower mortality risk and inversely associated with fatigue and overweight .…”

Section: Introductionmentioning

confidence: 95%

“…4,5 Phase angle was also directly associated with nutritional status in adults, 4,13,14 and in children and adolescents. [14][15][16] In adults diagnosed with HIV + , higher phase angle values were associated with lower mortality risk 3 and inversely associated with fatigue 17 and overweight. 3 However, in children and adolescents diagnosed with HIV + , no studies associating phase angle with physical fitness were found.…”

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confidence: 93%

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Phase angle is associated with the physical fitness of HIV‐infected children and adolescents

Martins

Lima

Silva

et al. 2019

Scandinavian Med Sci Sports

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The objective of this study was to identify the association of phase angle with physical fitness in children and adolescents infected with HIV. Sixty‐four children and adolescents infected with HIV (8‐15 years old) were tested for vertical transmission. The electrical bioimpedance was used to obtain the phase angle. Body fat (BF) and lean soft tissue mass (LSTM) were measured by x‐ray absorptiometry, and the manual grip strength was evaluated by dynamometry. The peak oxygen consumption (VO2 peak) was measured by respiratory change in a submaximal incremental test. Moderate‐vigorous physical activity (MVP) and sedentary behavior were measured using accelerometers and were used as covariates. Multiple linear regression was used. The linear correlation analyses demonstrated that the phase angle was inversely proportional to relative BF (r = −0.26), but was not associated with absolute body fat (r = −0.02). The phase angle was directly associated with LSTM (r = 0.57), handgrip strength, and (r = 0.43) peak VO2 (r = 0.55). The phase angle was not associated with absolute BF (β = −0.017, P = 0.413) and relative (β = −0.014, P = 0.175). The phase angle presented a direct association with LSTM (β = 0.041, P = 0.019) and peak VO2 (β = 0.005; P = 0.019), regardless of age, sex, sexual maturation, MVPA, sedentary behavior, antiretroviral drugs, and viral load. No association was found between phase angle and handgrip strength (β = 0.153; P = 0.199). It was concluded that phase angle was associated with LSTM and the aerobic fitness in HIV‐infected children and adolescents.

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Reference values for the phase angle of the electrical bioimpedance: Systematic review and meta-analysis involving more than 250,000 subjects

et al. 2020

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Bioelectrical Impedance of Vectorial Analysis and Phase Angle in Adolescents

Abstract: The present study provides an important tool for monitoring the nutritional status of adolescents of different ages, without previous knowledge of some anthropometric measures such as body weight.

Cited by 12 publications

References 36 publications

Phase Angle Is Related to 10 m and 30 m Sprint Time and Repeated-Sprint Ability in Young Male Soccer Players

Phase Angle Is Related to 10 m and 30 m Sprint Time and Repeated-Sprint Ability in Young Male Soccer Players

Phase angle is associated with the physical fitness of HIV‐infected children and adolescents

Reference values for the phase angle of the electrical bioimpedance: Systematic review and meta-analysis involving more than 250,000 subjects

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