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Comparing the Effects of Two Workout Protocols (HIIT vs. MICT) over Body Composition and Metabolic Markers on Early Adolescents with Obesity.

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Title: Comparing the Effects of Two Workout Protocols (HIIT vs. MICT) over Body Composition and Metabolic Markers on Early Adolescents with Obesity.
Alternate Title: Comparación de los efectos de dos protocolos de entrenamiento (HIIT vs. MICT) sobre la composición corporal y los marcadores metabólicos en adolescentes con obesidad.
Authors: SEPÚLVEDA-FLORES, CECILIA1 ceciliasepulveda@santotomas.cl, CIGARROA, IGOR2 icigarroac@ucsh.cl, LASSERRE-LASO, NICOLE3 nlasserre@santotomas.cl, SOTO-ESPÍNDOLA, CLAUDIO4 Claudiosoto1@santotomas.cl, LEIVA-MANZOR, GUILLERMO5 g.leival@icloud.com
Source: Salud Uninorte. ene-abr2025, Vol. 41 Issue 1, p50-75. 26p.
Subjects: ADOLESCENT obesity, NUTRITION counseling, BODY composition, LEAN body mass, STATISTICAL significance
Abstract (English): Introduction: Obesity in adolescents increases the risk of chronic diseases. Studies have shown that increasing physical activity improves metabolic health. However, there is a divergence regarding the effectiveness of different types of physical activity programs in adolescents. Objective: To determine the effects of two physical activity programs on early adolescents with obesity, and to compare their benefits on body composition and metabolic markers. Methodology: 35 adolescents diagnosed with obesity from a public school were selected and randomized in two groups. The HIIT group (n = 18) performed 1 min of intense exercise at 80-100 % of the maximum heart rate (HRmax) and rested 2 for a min, repeating this cycle 10 times; the MICT group (n = 17) performed 30 min of continuous exercise at 55-69% of HRmax. Both exercise programs were performed on a static bike, 3 times per week, for 12 weeks. All the participants had nutritional counseling weekly. Results: We detected a statistically significant increase in the lean mass (p = 0.008 and p = 0.002) and a decrease in triglyceride levels (p = 0.080 and p <0.001), for the MICT and the HIIT groups, respectively. Conclusion: Both exercise programs in conjunction with nutritional counseling, lead to a significant increase in lean mass and a decrease in triglyceride levels. MICT had a greater impact in decreasing fat mass, and both had a similar impact in reducing triglycerides levels. [ABSTRACT FROM AUTHOR]
Abstract (Spanish): Introducción: La obesidad en adolescentes aumenta el riesgo de enfermedades crónicas. Estudios han demostrado que aumentar la actividad física mejora la salud metabólica. Sin embargo, existe divergencia sobre la efectividad de los distintos tipos de programas de actividad física en adolescentes. Objetivo: Determinar los efectos de dos programas de actividad física en adolescentes con obesidad, y comparar sus beneficios sobre la composición corporal y los marcadores metabólicos. Metodología: Se seleccionaron, de un colegio público, 35 adolescentes diagnosticados con obesidad. Los participantes se dividieron en dos grupos. El grupo HIIT (n = 18) realizó 1 min de ejercicio intenso al 80-100 % de la frecuencia cardiaca máxima (FC máx.) y descansó durante 2 min, repitiendo este ciclo 10 veces; el grupo MICT (n = 17) realizó 30 minutos de ejercicio continuo al 55-69 % de la FC máx. Ambos programas de ejercicio se realizaron en una bicicleta estática, 3 veces por semana, durante 12 semanas. Todos los participantes recibieron asesoramiento nutricional semanal. Resultados: Se detectó un aumento estadísticamente significativo de la masa magra (p = 0.008 y p = 0.002) y una disminución de los niveles de triglicéridos (p = 0.080 y p <0.001), para los grupos MICT y HIIT, respectivamente. Conclusión: Ambos programas de ejercicio, junto con el asesoramiento nutricional, produjeron un aumento significativo de la masa magra y un descenso de los niveles de triglicéridos. MICT tuvo un mayor impacto en la disminución de la masa grasa, y ambos programas de ejercicio tuvieron un impacto similar en la reducción de los niveles de triglicéridos. [ABSTRACT FROM AUTHOR]
Copyright of Salud Uninorte is the property of Fundacion Universidad del Norte and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Comparing the Effects of Two Workout Protocols (HIIT vs. MICT) over Body Composition and Metabolic Markers on Early Adolescents with Obesity.
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  Data: Comparaci&#243;n de los efectos de dos protocolos de entrenamiento (HIIT vs. MICT) sobre la composici&#243;n corporal y los marcadores metab&#243;licos en adolescentes con obesidad.
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Salud+Uninorte%22&quot;&gt;Salud Uninorte&lt;/searchLink&gt;. ene-abr2025, Vol. 41 Issue 1, p50-75. 26p.
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  Data: &lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22ADOLESCENT+obesity%22&quot;&gt;ADOLESCENT obesity&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22NUTRITION+counseling%22&quot;&gt;NUTRITION counseling&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22BODY+composition%22&quot;&gt;BODY composition&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22LEAN+body+mass%22&quot;&gt;LEAN body mass&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22STATISTICAL+significance%22&quot;&gt;STATISTICAL significance&lt;/searchLink&gt;
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  Label: Abstract (English)
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  Data: Introduction: Obesity in adolescents increases the risk of chronic diseases. Studies have shown that increasing physical activity improves metabolic health. However, there is a divergence regarding the effectiveness of different types of physical activity programs in adolescents. Objective: To determine the effects of two physical activity programs on early adolescents with obesity, and to compare their benefits on body composition and metabolic markers. Methodology: 35 adolescents diagnosed with obesity from a public school were selected and randomized in two groups. The HIIT group (n = 18) performed 1 min of intense exercise at 80-100 % of the maximum heart rate (HRmax) and rested 2 for a min, repeating this cycle 10 times; the MICT group (n = 17) performed 30 min of continuous exercise at 55-69% of HRmax. Both exercise programs were performed on a static bike, 3 times per week, for 12 weeks. All the participants had nutritional counseling weekly. Results: We detected a statistically significant increase in the lean mass (p = 0.008 and p = 0.002) and a decrease in triglyceride levels (p = 0.080 and p &lt;0.001), for the MICT and the HIIT groups, respectively. Conclusion: Both exercise programs in conjunction with nutritional counseling, lead to a significant increase in lean mass and a decrease in triglyceride levels. MICT had a greater impact in decreasing fat mass, and both had a similar impact in reducing triglycerides levels. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label: Abstract (Spanish)
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  Data: Introducci&#243;n: La obesidad en adolescentes aumenta el riesgo de enfermedades cr&#243;nicas. Estudios han demostrado que aumentar la actividad f&#237;sica mejora la salud metab&#243;lica. Sin embargo, existe divergencia sobre la efectividad de los distintos tipos de programas de actividad f&#237;sica en adolescentes. Objetivo: Determinar los efectos de dos programas de actividad f&#237;sica en adolescentes con obesidad, y comparar sus beneficios sobre la composici&#243;n corporal y los marcadores metab&#243;licos. Metodolog&#237;a: Se seleccionaron, de un colegio p&#250;blico, 35 adolescentes diagnosticados con obesidad. Los participantes se dividieron en dos grupos. El grupo HIIT (n = 18) realiz&#243; 1 min de ejercicio intenso al 80-100 % de la frecuencia cardiaca m&#225;xima (FC m&#225;x.) y descans&#243; durante 2 min, repitiendo este ciclo 10 veces; el grupo MICT (n = 17) realiz&#243; 30 minutos de ejercicio continuo al 55-69 % de la FC m&#225;x. Ambos programas de ejercicio se realizaron en una bicicleta est&#225;tica, 3 veces por semana, durante 12 semanas. Todos los participantes recibieron asesoramiento nutricional semanal. Resultados: Se detect&#243; un aumento estad&#237;sticamente significativo de la masa magra (p = 0.008 y p = 0.002) y una disminuci&#243;n de los niveles de triglic&#233;ridos (p = 0.080 y p &lt;0.001), para los grupos MICT y HIIT, respectivamente. Conclusi&#243;n: Ambos programas de ejercicio, junto con el asesoramiento nutricional, produjeron un aumento significativo de la masa magra y un descenso de los niveles de triglic&#233;ridos. MICT tuvo un mayor impacto en la disminuci&#243;n de la masa grasa, y ambos programas de ejercicio tuvieron un impacto similar en la reducci&#243;n de los niveles de triglic&#233;ridos. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of Salud Uninorte is the property of Fundacion Universidad del Norte and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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        Value: 10.14482/sun.41.01.158.245
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        Text: English
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      – SubjectFull: NUTRITION counseling
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      – SubjectFull: BODY composition
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      – SubjectFull: LEAN body mass
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      – SubjectFull: STATISTICAL significance
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