Publications by authors named "Joao Antonio Chula 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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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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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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Objective: To estimate the prevalence of abdominal obesity and verify the association with sociodemographic factors (gender, school shift, ethnicity, age, maternal education and economic status) and lifestyle (alcohol consumption, sleep, soft drink consumption, level of physical activity and sedentary behavior) in adolescents in Southern Brazil.

Methods: This was a cross-sectional epidemiological study of 930 adolescents (490 girls) aged 14 to 19 years, living in the city of São José, SC, Brazil. A self-administered questionnaire was used to collect sociodemographic and lifestyle data.

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