Association between sedentary behavior and bone mass in adolescents

Pelegrini, Andréia; Klen, Juliana Araujo; Costa, Ádson; Bim, Mateus Augusto; Claumann, Gaia Salvador; Angelo, Hector Cris Colares de; Pinto, André de Araújo

doi:10.1007/s00198-020-05412-1

Cited by 12 publications

(23 citation statements)

References 41 publications

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“…Of the 59 full-text articles reviewed, 45 were excluded due to a lack of screen time data; 2 due to unsuitable study characteristics; 1 due to the absence of bone health data; and 1 because the study population was exclusively adult (Supplementary Table 1). Ultimately, 10 articles (37)(38)(39)(40)(41)(42)(43)(44)(45)(46) were selected for inclusion in this systematic review.…”

Section: Resultsmentioning

confidence: 99%

“…All studies involved a pediatric population (range, 2-18 years) and 1 also included young adults up to 22 years of age (37). Four studies assessed the effects of total screen time on bone health (37-40), 7 the effects of TV viewing time on bone health (37,(39)(40)(41)(42)(43)(44), and 6 the effects of recreational computer use on bone health (39,41,42,(44)(45)(46). Four studies used DEXA to evaluate bone health (38,39,42,44), of which 2 measured BMC (39,44) and the other 2 measured BMD (38,42).…”

Section: Study Characteristicsmentioning

confidence: 99%

“…Four studies assessed the effects of total screen time on bone health (37-40), 7 the effects of TV viewing time on bone health (37,(39)(40)(41)(42)(43)(44), and 6 the effects of recreational computer use on bone health (39,41,42,(44)(45)(46). Four studies used DEXA to evaluate bone health (38,39,42,44), of which 2 measured BMC (39,44) and the other 2 measured BMD (38,42). Six studies used QUS (37,40,41,43,45,46) to measure BSI (2 studies) (37,41), SOS (3 studies) (40,45,46), FI (1 study) (43), or BUA (2 studies) (45,46).…”

Section: Study Characteristicsmentioning

confidence: 99%

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Screen Time and Bone Status in Children and Adolescents: A Systematic Review

et al. 2021

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Introduction: Technological advances over the last 2 decades have led to an increase in the time spent by children and youth engaged in screen-based activities, and growing recognition of deleterious effects on health. In this systematic review of cohort and cross-sectional studies, we assess current data on the relationship between screen time and bone status in children and teenagers.Methods: We searched PUBMED and SCOPUS databases for studies of children and adolescents that assessed screen time and bone status, determined by measuring bone mineral content or density, bone stiffness index, bone speed of sound, bone broadband ultrasound attenuation, or frame index. Searches were limited to studies published between 1900 and 2020, and performed in accordance with Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines. The studies included were evaluated using the Newcastle-Ottawa quality assessment scale.Results: Ten cohort and cross-sectional studies including pediatric population were selected. The combined study population was 20,420 children/adolescents, of whom 18,444 participated in cross-sectional studies. Four studies assessed the effects of total screen time, seven the consequences of TV viewing time, and six the effects of recreational computer use on bone health. Our findings indicate an inverse association between total and weekly screen time and bone health in children and adolescents. In 57% of the studies included also a negative correlation between television viewing time and bone status was observed, while recreational computer time did not have a significant impact on bone health. According to the only four studies that included dietetic factors, no relevant differences were found between calcium intake and screen time or bone broadband ultrasound attenuation and bone speed of sound.Conclusions: Review of the literature of the past three decades provides strong support for comprehensive education of screen time on bone status. The findings of this systematic review support a negative association between screen time and bone status in children and adolescents, with a different impact when considering the different technological devices. As peak bone mass in adolescents is the strongest predictor of osteoporosis risk, strategies aimed at improving bone health should incorporate conscious use of digital technology.

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Section: Resultsmentioning

confidence: 99%

Section: Study Characteristicsmentioning

confidence: 99%

Section: Study Characteristicsmentioning

confidence: 99%

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Screen Time and Bone Status in Children and Adolescents: A Systematic Review

et al. 2021

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“…La revisión sistemática de Carson et al (2016), acerca de la relación entre el comportamiento sedentario y los indicadores de salud de niños y jóvenes de 5 a 17 años, encontró un detrimento en la composición corporal, mayores índices de riesgo cardiometabólico, inferior condición física y baja autoestima. Además, las conductas sedentarias pueden llevar a una pérdida de densidad ósea (Gracia-Marco et al, 2012;Pelegrini et al, 2020). La Tabla 2 muestra algunos de los ejemplos más destacados de todos estos efectos nocivos para la salud del sedentarismo y la inactividad física.…”

Section: Perjuicios Del Sedentarismo Y Beneficios De La Actividad Físicaunclassified

“…Según el análisis de los pulsómetros las estadísticas revelaron diferentes momentos de la intervención, durante las lecciones activas de Lengua, donde la FC media fue significativamente más alta en el grupo PEDAL que en el grupo control y más alta también que aquella recogida durante las lecciones tradicionales previas a la intervención. Este aumento de la FC media debido a la actividad física es positivo para combatir los riesgos para la salud de un estilo de vida sedentario (Carson et al, 2016;Gracia-Marco et al, 2012;Pelegrini et al, 2020).…”

Section: Viabilidad: Beneficiosunclassified

Lecciones activas: efectos de un programa escolar de actividad física mediante bike desks en adolescentes = Physically active lessons: effects of a school-based physical activity program using bike desks in adolescents

Recuero¹

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Esta Tesis Doctoral Internacional pretende ser un reflejo de algunas de las mejores intenciones docentes que buscan, incansablemente, la salud física de las nuevas generaciones.Marco teórico. Se presentan los principales datos y estudios que muestran los preocupantes datos de inactividad entre niños y adolescentes españoles. Se justifica la importancia, para la salud física, de la Educación Física y del planteamiento de intervenciones educativas de actividad física en los centros escolares. Para ello, se recoge la información existente sobre las diferentes modalidades y programas internacionales de actividad física durante la jornada lectiva, se profundiza en su estudio y se realiza una revisión sistemática de uno de esos programas, las lecciones activas mediante bike desks.Objetivo. Aplicar un programa de intervención durante la jornada lectiva, a través de la implementación de lecciones activas mediante bike desks, con el objetivo de aumentar la actividad física de los escolares adolescentes, sin alterar su rendimiento académico. Método. Se desarrolló el Programa Estratégico para Desarrollar Activas Lecciones / Program toEnhace and Develop Active Lessons [PEDAL] que implantó mini bicicletas estáticas, denominadas bike desks, en un centro escolar, consiguiendo que los escolares pedaleasen durante sesiones académicas teóricas. Tras comprobar su viabilidad en 157 estudiantes durante el proyecto piloto, se buscó facilitar a los adolescentes una oportunidad de actividad física sistemática y comprobar sus efectos tanto físicos como cognitivos. Para ello 55 estudiantes de Educación Secundaria fueron asignados aleatoriamente al grupo PEDAL (n = 28, 14,86 ± 0,65 años, 46,43 % mujeres) o al grupo control (n = 27, 15 ± 0,68 años, 51,85 % mujeres). Los pre-test verificaron la homogeneidad de los grupos. Los integrantes del grupo PEDAL pedalearon durante cuatro sesiones semanales de Lengua. Para conocer sus efectos se aplicaron pruebas pre-post para comprobar la actividad física del alumnado (IPAQ-SF, monitores de ritmo cardiaco), su capacidad

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