journal article·2025-04-24Open access

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

Miguel Jacinto, Diogo Monteiro, Pedro Duarte-Mendes, Nuno Couto, Susana Diz, Rui Matos, Nuno Amaro, Raul Antunes

Applied Sciences· Volume 15· Issue 9

Abstract

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; p ≤ 0.001; right: r = 0.504; p ≤ 0.001) and extension (r = 0.328; p = 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.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Children's Physical and Motor Development · Cerebral Palsy and Movement Disorders · Health and Well-being Studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

ESECS, Polytechnique of Leiria, 2411-901 Leiria, Portugal

Research Center in Sport, Health, and Human Development (CIDESD), 5000-558 Vila Real, Portugal

Polytechnic Institute of Castelo Branco, 6000-084 Castelo Branco, Portugal

Sport Physical Activity and Health Research & Innovation Center (SPRINT), 2040-413 Rio Maior, Portugal

Sport Sciences School of Rio Maior, Santarém Polytechnique University (ESDRM-IPSantarém), 2040-413 Rio Maior, Portugal

Funding

FCT—Foundation for Science and Technology

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