Analysis of sleep quality and its impact on body composition on the pre-competition day in natural bodybuilders

Introduction: Bodybuilding is a sport that evaluates athletes based on their muscle mass, symmetry, and muscle definition, unlike conventional sports that are usually based on athletic performance in competition. Objective: The objective of the study was to determine the relationship between fat...

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Main Authors: Miguel Alarcón-Rivera, Felipe Montecino Rojas, Eduardo Guzmán-Muñoz, Cristian Salazar-Orellana, Eduar Gaete Valdés, Diego Durán Araya, Pablo Luna-Villouta, César Fáundez-Casanova, Héctor Fuentes-Barría, Raúl Aguilera-Eguía
Format: Article
Language:English
Published: FEADEF 2025-03-01
Series:Retos: Nuevas Tendencias en Educación Física, Deportes y Recreación
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Online Access:https://recyt.fecyt.es/index.php/retos/article/view/111445
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author Miguel Alarcón-Rivera
Felipe Montecino Rojas
Eduardo Guzmán-Muñoz
Cristian Salazar-Orellana
Eduar Gaete Valdés
Diego Durán Araya
Pablo Luna-Villouta
César Fáundez-Casanova
Héctor Fuentes-Barría
Raúl Aguilera-Eguía
author_facet Miguel Alarcón-Rivera
Felipe Montecino Rojas
Eduardo Guzmán-Muñoz
Cristian Salazar-Orellana
Eduar Gaete Valdés
Diego Durán Araya
Pablo Luna-Villouta
César Fáundez-Casanova
Héctor Fuentes-Barría
Raúl Aguilera-Eguía
author_sort Miguel Alarcón-Rivera
collection DOAJ
description Introduction: Bodybuilding is a sport that evaluates athletes based on their muscle mass, symmetry, and muscle definition, unlike conventional sports that are usually based on athletic performance in competition. Objective: The objective of the study was to determine the relationship between fat mass (FM) and skeletal muscle mass (SMM) through bioimpedance with sleep quality in Chilean natural bodybuilders on pre-competition day. Methodology: Twenty-six natural bodybuilders participated in the WNBF Chilean championship. The objective was to evaluate body composition to obtain data regarding SMM and FM. Additionally, the PSQI was applied. Results: significant relationships were obtained with SMM and PSQI (p= 0, 02, R = -0,38, R²= 0.14) and a moderate correlation between FM and PSQI (p= 0.04, R = 0.40, R²= 0.15). Sleep efficiency showed a negative correlation (p= 0.001, R = -0.55, R²= 0.31) with FM and a positive correlation (p = 0.002, R = 0.58, R²= 0.34) with SMM. Sleep duration showed a negative correlation (p = 0.024, R = -0.39, R²= 0.15) with FM and a positive correlation (p = 0.021, R = 0.45, R²= 0.20) with SMM. Discussion: A lack of sufficient sleep has been linked to adverse effects on body composition, including reduced fat loss and muscle gain. Additionally, insufficient sleep has been associated with a decline in athletic performance. Conclusions: The findings of this study indicate that poor sleep quality is associated with higher body fat and better sleep quality with an higher skeletal muscle mass, underscoring the significance of sleep for achieving optimal body composition and performance in natural bodybuilders.
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spelling doaj-art-9a804b5115ab4cbcae92dd3576e170c82025-08-20T02:05:25ZengFEADEFRetos: Nuevas Tendencias en Educación Física, Deportes y Recreación1579-17261988-20412025-03-016610.47197/retos.v66.111445Analysis of sleep quality and its impact on body composition on the pre-competition day in natural bodybuildersMiguel Alarcón-Rivera0Felipe Montecino Rojas1Eduardo Guzmán-Muñoz2Cristian Salazar-Orellana3Eduar Gaete Valdés4Diego Durán Araya5Pablo Luna-Villouta6César Fáundez-Casanova7Héctor Fuentes-Barría8Raúl Aguilera-Eguía9Escuela de Ciencias del Deporte y Actividad Física, Facultad de Salud, Universidad Santo Tomás, Talca, Chile.Escuela de Ciencias del Deporte y Actividad Física, Facultad de Salud, Universidad Santo Tomás, Talca, Chile.Escuela de Kinesiología, Facultad de Salud, Universidad Santo Tomás, Talca, Chile.Escuela de Ciencias del Deporte y Actividad Física, Facultad de Salud, Universidad Santo Tomás, Talca, Chile.Gimnasio Nutre y Entrena, Talca, Chile.Universidad de Aconcagua (Chile)Departamento de Educación Física, Facultad de Educación, Universidad de Concepción, Chile.Pedagogía en Educación Física, Facultad de Educación, Universidad Católica del Maule, Chile.Facultad de odontología, Universidad Andres Bello, Concepción, Chile. Universidad Arturo Prat, Iquique, Chile.Departamento de Salud Pública, Facultad de Medicina, Universidad Católica de la Santísima Concepción, Chile. Introduction: Bodybuilding is a sport that evaluates athletes based on their muscle mass, symmetry, and muscle definition, unlike conventional sports that are usually based on athletic performance in competition. Objective: The objective of the study was to determine the relationship between fat mass (FM) and skeletal muscle mass (SMM) through bioimpedance with sleep quality in Chilean natural bodybuilders on pre-competition day. Methodology: Twenty-six natural bodybuilders participated in the WNBF Chilean championship. The objective was to evaluate body composition to obtain data regarding SMM and FM. Additionally, the PSQI was applied. Results: significant relationships were obtained with SMM and PSQI (p= 0, 02, R = -0,38, R²= 0.14) and a moderate correlation between FM and PSQI (p= 0.04, R = 0.40, R²= 0.15). Sleep efficiency showed a negative correlation (p= 0.001, R = -0.55, R²= 0.31) with FM and a positive correlation (p = 0.002, R = 0.58, R²= 0.34) with SMM. Sleep duration showed a negative correlation (p = 0.024, R = -0.39, R²= 0.15) with FM and a positive correlation (p = 0.021, R = 0.45, R²= 0.20) with SMM. Discussion: A lack of sufficient sleep has been linked to adverse effects on body composition, including reduced fat loss and muscle gain. Additionally, insufficient sleep has been associated with a decline in athletic performance. Conclusions: The findings of this study indicate that poor sleep quality is associated with higher body fat and better sleep quality with an higher skeletal muscle mass, underscoring the significance of sleep for achieving optimal body composition and performance in natural bodybuilders. https://recyt.fecyt.es/index.php/retos/article/view/111445bodybuildingmuscle hypertrophypeak weekphysical conditioningSleep quality
spellingShingle Miguel Alarcón-Rivera
Felipe Montecino Rojas
Eduardo Guzmán-Muñoz
Cristian Salazar-Orellana
Eduar Gaete Valdés
Diego Durán Araya
Pablo Luna-Villouta
César Fáundez-Casanova
Héctor Fuentes-Barría
Raúl Aguilera-Eguía
Analysis of sleep quality and its impact on body composition on the pre-competition day in natural bodybuilders
Retos: Nuevas Tendencias en Educación Física, Deportes y Recreación
bodybuilding
muscle hypertrophy
peak week
physical conditioning
Sleep quality
title Analysis of sleep quality and its impact on body composition on the pre-competition day in natural bodybuilders
title_full Analysis of sleep quality and its impact on body composition on the pre-competition day in natural bodybuilders
title_fullStr Analysis of sleep quality and its impact on body composition on the pre-competition day in natural bodybuilders
title_full_unstemmed Analysis of sleep quality and its impact on body composition on the pre-competition day in natural bodybuilders
title_short Analysis of sleep quality and its impact on body composition on the pre-competition day in natural bodybuilders
title_sort analysis of sleep quality and its impact on body composition on the pre competition day in natural bodybuilders
topic bodybuilding
muscle hypertrophy
peak week
physical conditioning
Sleep quality
url https://recyt.fecyt.es/index.php/retos/article/view/111445
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