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. 2020 Jun 12:38:e2018329.
doi: 10.1590/1984-0462/2020/38/2018329. eCollection 2020.

CORRELATES OF PHYSICAL ACTIVITY IN ADOLESCENTS OF PUBLIC SCHOOLS IN CURITIBA, PARANÁ, BRAZIL

[Article in English, Portuguese]
Eliane Denise Araújo Bacil  1 , Thiago Silva Piola  1 , Michael Pereira da Silva  2 , Rodrigo Bozza  3 , Edmar Fantineli  1 , Wagner de Campos  1
Affiliations

CORRELATES OF PHYSICAL ACTIVITY IN ADOLESCENTS OF PUBLIC SCHOOLS IN CURITIBA, PARANÁ, BRAZIL

[Article in English, Portuguese]
Eliane Denise Araújo Bacil et al. Rev Paul Pediatr. .

Abstract
in English, Portuguese

Objective: To verify the association of nutritional status, biological maturation, social support and self-efficacy with the physical activity level of 2,347 students of both sexes, aged between 11 and 15 years old, enrolled in state schools in the city of Curitiba, Paraná, Brazil.

Methods: Anthropometric measurements of body mass, height and sitting height were collected. The assessment of biological maturation was based on the analysis of the age at peak height and sexual maturity. The physical activity level, social support from parents and friends and self-efficacy were evaluated by self-reported questionnaires. Sex/age-specific body mass index (BMI) cutoff points identified the nutritional status. Gross and adjusted binary logistic regression were used to obtain odds (OR) ratios with 95% confidence intervals (95%CI), adopting p≤0.05 as significant.

Results: More than half (52.3%; n=1,227) of students were active, with boys in a higher proportion (64.1%; p≤0.01). The correlates of physical activity were: nutritional status (OR 1.25; 95%CI 1.01-1.56), early somatic maturation (OR 0.71; 95%CI 0.54-0.93), moderate (OR 1.85; 95%CI 1.50-2.30) and high social support from parents (OR 2.70; 95%CI 2.11-3.42) and high social support from friends (OR 1.78; 95%CI 1.42-2.24).

Conclusions: Nutritional status, early somatic maturation, social support of parents and friends were correlates of physical activity. Overweight girls with moderate and high parental support and boys with greater social support from parents and friends were more active. Girls with early somatic maturation were less active.

Objetivo:: Verificar a associação do estado nutricional, da maturação biológica, do apoio social e da autoeficácia com o nível de atividade física de 2.347 escolares, de ambos os sexos, com idades entre 11 e 15 anos, de escolas estaduais da cidade de Curitiba, Paraná.

Métodos:: Foram coletadas as medidas antropométricas de massa corporal, estatura e altura sentada. A avaliação da maturação biológica foi realizada pelas análises da idade do pico de velocidade de altura e maturação sexual. O nível de atividade física, o apoio social dos pais e dos amigos e a autoeficácia foram analisados por questionários autorreportados. O estado nutricional foi obtido por meio de pontos de corte de índice de massa corpórea (IMC) específicos para idade e sexo. Razões de chances com intervalos de confiança de 95% (IC95%) foram obtidas por meio da regressão logística binária bruta e ajustada, adotando-se p<0,05.

Resultados:: Pouco mais da metade (52,3%; n=1.227) dos escolares é ativa, sendo os meninos em maior proporção (64,1%; p≤0,01). Foram associados com atividade física: estado nutricional (Odds Ratio [OR] 1,25; IC95% 1,01-1,56), maturação somática precoce (OR 0,71; IC95% 0,54-0,93), moderado e elevado apoio social dos pais (OR 1,85; IC95% 1,50-2,30 e OR 2,70; IC95% 2,11-3,42, respectivamente) e elevado apoio social dos amigos (OR 1,78; IC95% 1,42-2,24).

Conclusões:: O estado nutricional, a maturação somática precoce, o apoio social dos pais e dos amigos foram correlatos da atividade física. Meninas com excesso de peso e com moderado e elevado apoio social dos pais, e meninos com maior apoio social dos pais e dos amigos foram mais ativos, enquanto meninas maturadas precocemente, menos ativas.

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Conflict of interest statement

The authors declare no conflict of interests.

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