Impact of Muscle Mass and Muscle Strength on Quality of Life of Individuals with Intellectual and Developmental Disabilities

This study aimed to investigate the relationship between muscle strength and perceived quality of life in individuals with Intellectual and Developmental Disabilities (IDDs). A cross-sectional study was carried out, which involved 37 participants with a mean age of 39.08 years (SD = 0.05), ranging f...

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Main Authors: Miguel Jacinto, Diogo Monteiro, Pedro Duarte-Mendes, Nuno Couto, Susana Diz, Rui Matos, Nuno Amaro, Raul Antunes
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Applied Sciences
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Online Access:https://www.mdpi.com/2076-3417/15/9/4711
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author Miguel Jacinto
Diogo Monteiro
Pedro Duarte-Mendes
Nuno Couto
Susana Diz
Rui Matos
Nuno Amaro
Raul Antunes
author_facet Miguel Jacinto
Diogo Monteiro
Pedro Duarte-Mendes
Nuno Couto
Susana Diz
Rui Matos
Nuno Amaro
Raul Antunes
author_sort Miguel Jacinto
collection DOAJ
description This study aimed to investigate the relationship between muscle strength and perceived quality of life in individuals with Intellectual and Developmental Disabilities (IDDs). A cross-sectional study was carried out, which involved 37 participants with a mean age of 39.08 years (SD = 0.05), ranging from 20 to 58 years. The participants were assessed on anthropometric and body composition parameters, a 30 s chair stand test and isokinetic dynamometry. Quality of life was assessed using the Portuguese version of the Personal Outcomes Scale. Pearson’s correlation analyses were carried out to examine the associations between strength measures and quality of life. Significant correlations were observed between strength measures and quality of life. In addition, lower limb muscle strength, particularly in flexion (left: r = 0.450; <i>p</i> ≤ 0.001; right: r = 0.504; <i>p</i> ≤ 0.001) and extension (r = 0.328; <i>p</i> = 0.05), showed positive correlations with quality of life. These findings provide preliminary evidence suggesting that muscle mass and strength may serve as potential predictors of quality of life in individuals with IDD.
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spelling doaj-art-2ffdb3cad30d4456a544a07094defe4b2025-08-20T02:58:47ZengMDPI AGApplied Sciences2076-34172025-04-01159471110.3390/app15094711Impact of Muscle Mass and Muscle Strength on Quality of Life of Individuals with Intellectual and Developmental DisabilitiesMiguel Jacinto0Diogo Monteiro1Pedro Duarte-Mendes2Nuno Couto3Susana Diz4Rui Matos5Nuno Amaro6Raul Antunes7ESECS, Polytechnique of Leiria, 2411-901 Leiria, PortugalESECS, Polytechnique of Leiria, 2411-901 Leiria, PortugalPolytechnic Institute of Castelo Branco, 6000-084 Castelo Branco, PortugalResearch Center in Sport, Health, and Human Development (CIDESD), 5000-558 Vila Real, PortugalESECS, Polytechnique of Leiria, 2411-901 Leiria, PortugalESECS, Polytechnique of Leiria, 2411-901 Leiria, PortugalESECS, Polytechnique of Leiria, 2411-901 Leiria, PortugalESECS, Polytechnique of Leiria, 2411-901 Leiria, PortugalThis study aimed to investigate the relationship between muscle strength and perceived quality of life in individuals with Intellectual and Developmental Disabilities (IDDs). A cross-sectional study was carried out, which involved 37 participants with a mean age of 39.08 years (SD = 0.05), ranging from 20 to 58 years. The participants were assessed on anthropometric and body composition parameters, a 30 s chair stand test and isokinetic dynamometry. Quality of life was assessed using the Portuguese version of the Personal Outcomes Scale. Pearson’s correlation analyses were carried out to examine the associations between strength measures and quality of life. Significant correlations were observed between strength measures and quality of life. In addition, lower limb muscle strength, particularly in flexion (left: r = 0.450; <i>p</i> ≤ 0.001; right: r = 0.504; <i>p</i> ≤ 0.001) and extension (r = 0.328; <i>p</i> = 0.05), showed positive correlations with quality of life. These findings provide preliminary evidence suggesting that muscle mass and strength may serve as potential predictors of quality of life in individuals with IDD.https://www.mdpi.com/2076-3417/15/9/4711intellectual disabilitymuscle massneuromuscular capacitypeak torque
spellingShingle Miguel Jacinto
Diogo Monteiro
Pedro Duarte-Mendes
Nuno Couto
Susana Diz
Rui Matos
Nuno Amaro
Raul Antunes
Impact of Muscle Mass and Muscle Strength on Quality of Life of Individuals with Intellectual and Developmental Disabilities
Applied Sciences
intellectual disability
muscle mass
neuromuscular capacity
peak torque
title Impact of Muscle Mass and Muscle Strength on Quality of Life of Individuals with Intellectual and Developmental Disabilities
title_full Impact of Muscle Mass and Muscle Strength on Quality of Life of Individuals with Intellectual and Developmental Disabilities
title_fullStr Impact of Muscle Mass and Muscle Strength on Quality of Life of Individuals with Intellectual and Developmental Disabilities
title_full_unstemmed Impact of Muscle Mass and Muscle Strength on Quality of Life of Individuals with Intellectual and Developmental Disabilities
title_short Impact of Muscle Mass and Muscle Strength on Quality of Life of Individuals with Intellectual and Developmental Disabilities
title_sort impact of muscle mass and muscle strength on quality of life of individuals with intellectual and developmental disabilities
topic intellectual disability
muscle mass
neuromuscular capacity
peak torque
url https://www.mdpi.com/2076-3417/15/9/4711
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