Publications by authors named "Joao Antonio Chula de Castro"

Background/objectives: There is a need to monitor physical fitness in HIV-diagnosed children and adolescents, and body mass index (BMI) could be an option for this due to its usability for assessing nutritional status and fat mass. The present study aimed to explore the relationship between BMI and physical fitness in HIV-diagnosed children and adolescents.

Methods: A cross-sectional study was conducted with 86 HIV-diagnosed children and adolescents aged 5-15, with participants from two research protocols (Study I, = 65; Study II, = 21).

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Background: Health-related physical fitness has been widely used to investigate the adverse effects of HIV infection/ART in children and adolescents. However, methods/protocols and cut-points applied for investigating health-related physical fitness are not clear. The aim of this scoping review was to map the literature to identify gaps in knowledge regarding the methods/protocols and cut-points.

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Purpose: To investigate the validity of the Physical Activity Questionnaire for Older Children (PAQ-C) to assess the moderate- to vigorous-intensity physical activity (MVPA) level of children and adolescents diagnosed with HIV and propose cut-points, with accelerometer measures as the reference method.

Method: Children and adolescents, aged 8-14 years (mean age = 12.21 y, SD = 2.

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Background: During childhood and adolescence, there are significant increases in bone mineral content (BMC) and bone mineral density (BMD).

Objective: To investigate physical growth parameters associated with BMD and BMC among children and adolescents diagnosed with human immunodeficiency virus (HIV).

Design And Setting: Cross-sectional study conducted in Florianópolis, Brazil, among 63 children and adolescents (aged 8-15 years) diagnosed with HIV.

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Purpose: To examine the capacity of physiological variables and performance to predict peak oxygen consumption (peak O) in children and adolescents living with HIV.

Method: Sixty-five children and adolescents living with HIV (30 boys) aged 8-15 years, participated in the study. Peak O was measured by breath-by-breath respiratory exchange during an incremental cycle ergometer until volitional exhaustion.

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The aims of this pilot study were to verify which muscle strength tests better explain bone mineral content (BMC) of the femoral neck and lumbar spine and to develop predictive equations to estimate femoral neck and lumbar spine BMC. Twenty-nine subjects aged 56-76 years old (12 women and 17 men) participated in the study. Femoral neck and lumbar spine BMC was evaluated by Dual X-ray absorptiometry (DXA).

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Background: Bioelectrical impedance analysis (BIA) has commonly been used to assess the body composition of children and adolescents. BIA validation studies have found distinct correlation values with reference methods.

Objectives: To assess the reproducibility, correlation and mean differences in body composition estimated by BIA and reference methods, we systematically reviewed the literature in the pediatric population.

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Objective: To estimate the prevalence of low handgrip strength (HGS) levels and sociodemographic characteristics, health behaviours and body fatness status related in adolescents.

Method: Cross-sectional epidemiological study with 636 adolescents aged 14-19 years in a city in southern Brazil. HGS was measured by dynamometer.

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Objetives: The aim of this study was to identify studies on handgrip strength (HGS) and associations with sociodemographic variables and lifestyle in adults.

Methods: Searches were performed in Scielo, PubMed, EBSCO, Lilacs, Scopus and Web of Science databases.

Data Extraction: Two blinded reviewers independently screened the articles, scored their methodological quality and extracted data.

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The aim of this study was to assess the validity of traditional anthropometric equations and to develop predictive equations of total body and trunk fat for children and adolescents living with HIV based on anthropometric measurements. Forty-eight children and adolescents of both sexes (24 boys) aged 7-17 years, living in Santa Catarina, Brazil, participated in the study. Dual-energy X-ray absorptiometry was used as the reference method to evaluate total body and trunk fat.

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