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Title: O papel mediador e moderador da aptidão cardiorrespiratória na relação entre tempo de tela, adiposidade e os níveis de aptidão física em escolares de Santa Cruz do Sul : um estudo de coorte prospectiva.
Authors: Lehnhard, Aline Rosso
Abstract: The study aimed to carry out a systematic review, with the aim of mapping the relationships between
cardiorespiratory fitness, screen time and nutritional status in children and adolescents, as well as verifying the direction of these relationships. The search was carried out according to the PRISMA recommendations, in the Web of Science, Scopus, and Medline databases. Complete and original studies, published between 2000 and March 2023, that evaluated the variables cited concomitantly and / or associations were included. 210 articles were identified, and after refinement according to outcomes, 34 documents were evaluated qualitatively. It can be seen that the health variables, such as cardiorespiratory fitness, screen time and weight status, continue with negatively alarming data in this population, and that they are strongly correlated, demonstrating that the modification of one of them may interfere with the others , thus improving the health status of children and adolescents. Purpose: The aim of this study was to examine the moderating role of changes in
cardiorespiratory fitness (CRF) in the relation between baseline screen time and waist circumference (WC) after 3-years of follow-up of children and adolescents. Methods: 3-year longitudinal observational study with 401 students, seven to 15 years of age at the beginning of the study. The CRF measurement was evaluated by indirect calculation of the maximum oxygen volume (VO2max). The evaluation of the time spent in front of the screens, was performed by a self-reported questionnaire. Moderation analyses were tested using multiple linear regression models, with adjustments for gender, age, sexual maturation, and WC at baseline. Results: We found a direct interaction term between the change of CRF and screen time with WC (p=0.045),
indicating that CRF acts as a moderator in the relationship between screen time and WC. It was observed that from 6.14 ml/min/kg in VO2max the relation between screen time and WC was direct, indicating that a lower WC value is observed when there is a shorter time in front of the screens and a higher CRF. Conclusion: Changes in CRF moderate the relation between baseline screen time and WC in children and adolescents after 3-years of follow-up.
Authors: Lehnhard, Aline Rosso
Abstract: The study aimed to carry out a systematic review, with the aim of mapping the relationships between
cardiorespiratory fitness, screen time and nutritional status in children and adolescents, as well as verifying the direction of these relationships. The search was carried out according to the PRISMA recommendations, in the Web of Science, Scopus, and Medline databases. Complete and original studies, published between 2000 and March 2023, that evaluated the variables cited concomitantly and / or associations were included. 210 articles were identified, and after refinement according to outcomes, 34 documents were evaluated qualitatively. It can be seen that the health variables, such as cardiorespiratory fitness, screen time and weight status, continue with negatively alarming data in this population, and that they are strongly correlated, demonstrating that the modification of one of them may interfere with the others , thus improving the health status of children and adolescents. Purpose: The aim of this study was to examine the moderating role of changes in
cardiorespiratory fitness (CRF) in the relation between baseline screen time and waist circumference (WC) after 3-years of follow-up of children and adolescents. Methods: 3-year longitudinal observational study with 401 students, seven to 15 years of age at the beginning of the study. The CRF measurement was evaluated by indirect calculation of the maximum oxygen volume (VO2max). The evaluation of the time spent in front of the screens, was performed by a self-reported questionnaire. Moderation analyses were tested using multiple linear regression models, with adjustments for gender, age, sexual maturation, and WC at baseline. Results: We found a direct interaction term between the change of CRF and screen time with WC (p=0.045),
indicating that CRF acts as a moderator in the relationship between screen time and WC. It was observed that from 6.14 ml/min/kg in VO2max the relation between screen time and WC was direct, indicating that a lower WC value is observed when there is a shorter time in front of the screens and a higher CRF. Conclusion: Changes in CRF moderate the relation between baseline screen time and WC in children and adolescents after 3-years of follow-up.
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Title: O papel mediador e moderador da aptidão cardiorrespiratória na relação entre tempo de tela, adiposidade e os níveis de aptidão física em escolares de Santa Cruz do Sul : um estudo de coorte prospectiva. Authors: Lehnhard, Aline Rosso Abstract: The study aimed to carry out a systematic review, with the aim of mapping the relationships between cardiorespiratory fitness, screen time and nutritional status in children and adolescents, as well as verifying the direction of these relationships. The search was carried out according to the PRISMA recommendations, in the Web of Science, Scopus, and Medline databases. Complete and original studies, published between 2000 and March 2023, that evaluated the variables cited concomitantly and / or associations were included. 210 articles were identified, and after refinement according to outcomes, 34 documents were evaluated qualitatively. It can be seen that the health variables, such as cardiorespiratory fitness, screen time and weight status, continue with negatively alarming data in this population, and that they are strongly correlated, demonstrating that the modification of one of them may interfere with the others , thus improving the health status of children and adolescents. Purpose: The aim of this study was to examine the moderating role of changes in cardiorespiratory fitness (CRF) in the relation between baseline screen time and waist circumference (WC) after 3-years of follow-up of children and adolescents. Methods: 3-year longitudinal observational study with 401 students, seven to 15 years of age at the beginning of the study. The CRF measurement was evaluated by indirect calculation of the maximum oxygen volume (VO2max). The evaluation of the time spent in front of the screens, was performed by a self-reported questionnaire. Moderation analyses were tested using multiple linear regression models, with adjustments for gender, age, sexual maturation, and WC at baseline. Results: We found a direct interaction term between the change of CRF and screen time with WC (p=0.045), indicating that CRF acts as a moderator in the relationship between screen time and WC. It was observed that from 6.14 ml/min/kg in VO2max the relation between screen time and WC was direct, indicating that a lower WC value is observed when there is a shorter time in front of the screens and a higher CRF. Conclusion: Changes in CRF moderate the relation between baseline screen time and WC in children and adolescents after 3-years of follow-up.
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