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Importance of Return to Usual and School Activities After Social Isolation in Recovering Vitamin D Concentrations, Physical Fitness, and Motor Performance in Adolescents

Author

Listed:
  • Frederico Bento de Moraes

    (Department of Physical Education, Federal University of Paraná, Curitiba 81531-980, PR, Brazil)

  • Maiara Cristina Tadiotto

    (Department of Physical Education, Federal University of Paraná, Curitiba 81531-980, PR, Brazil)

  • Brenda Lenardt

    (Densitometry Research Laboratory, Postgraduate Program in Physical Education and Health, Technological Federal University of Paraná, Curitiba 81531-980, PR, Brazil)

  • Jorge Mota

    (Center for Research in Physical Activity, Health and Leisure (CIAFEL)—Faculty of Sports, University of Porto (FADEUP), 4200-450 Porto, Portugal)

  • Oslei de Matos

    (Densitometry Research Laboratory, Postgraduate Program in Physical Education and Health, Technological Federal University of Paraná, Curitiba 81531-980, PR, Brazil)

  • Neiva Leite

    (Department of Physical Education, Federal University of Paraná, Curitiba 81531-980, PR, Brazil)

Abstract
This study aimed to observe adolescents’ changes and individual responses regarding the anthropometry, cardiometabolic profile, vitamin D concentrations, physical fitness, and motor competence upon immediate return and three months of school activities after lockdown. Methods: The study included 28 adolescents (14.8 ± 0.8 years) of both sexes. Anthropometric measures, body composition, cardiometabolic parameters, physical fitness, and motor competence were assessed. A paired t -test was used to compare the frequencies of respondents and the effect size of the results, considering significant p < 0.05. Results: After three months of school activities, adolescents changed their body composition, reducing % fat mass ( p = 0.008) and increasing fat-free mass ( p = 0.008). In terms of physical fitness, there was increased abdominal resistance ( p < 0.001; ES = −0.42) and motor performance, with reduction in supine-to-stand test time ( p < 0.001; ES = 0.53). There were very beneficial effects in reducing resting heart rate ( p ≤ 0.001; ES = 0.61) and increasing vitamin D concentrations ( p < 0.001; ES = −0.61). After three months of a school routine, the proportions of change in respondents were similar between girls and boys and eutrophic individuals and overweight individuals. Conclusions: Returning to school activities after lockdown was important for the recovery of vitamin D concentrations, physical fitness, and motor competence, whose responses were independent of the level of adiposity and sex of the adolescents.

Suggested Citation

  • Frederico Bento de Moraes & Maiara Cristina Tadiotto & Brenda Lenardt & Jorge Mota & Oslei de Matos & Neiva Leite, 2024. "Importance of Return to Usual and School Activities After Social Isolation in Recovering Vitamin D Concentrations, Physical Fitness, and Motor Performance in Adolescents," IJERPH, MDPI, vol. 21(11), pages 1-10, November.
  • Handle: RePEc:gam:jijerp:v:21:y:2024:i:11:p:1494-:d:1517890
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