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Neuromuscular control of masticatory muscles in people with intellectual disability, middle-aged adults and older adults.
Cruz-Montecinos, C; Valderrama-Mejías, J; Martínez-Arnau, F M; Carrasco, J J; Núñez-Cortés, R; Cortés-Amador, S.
Afiliación
  • Cruz-Montecinos C; Laboratory of Clinical Biomechanics, Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago, Chile.
  • Valderrama-Mejías J; Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago, Chile.
  • Martínez-Arnau FM; Department of Physiotherapy, University of Valencia, Valencia, Spain.
  • Carrasco JJ; Department of Physiotherapy, University of Valencia, Valencia, Spain.
  • Núñez-Cortés R; Physiotherapy in Motion Multispeciality Research Group (PTinMOTION), Department of Physiotherapy, University of Valencia, Valencia, Spain.
  • Cortés-Amador S; Physiotherapy in Motion Multispeciality Research Group (PTinMOTION), Department of Physiotherapy, University of Valencia, Valencia, Spain.
J Intellect Disabil Res ; 68(1): 84-93, 2024 01.
Article en En | MEDLINE | ID: mdl-37698385
ABSTRACT

BACKGROUND:

Motor control issues are common for people with intellectual disabilities (PWID), resulting in difficulties with basic activities of daily living, including eating. Mastication, which is crucial for digestion and overall health, is poorly understood in this population. PWID shows frailty similar to older people, highlighting the importance of comparing masticatory motor control with older adults. This study compared the neuromuscular control of the masticatory muscles in middle-aged, PWID and older adults.

METHODS:

A cross-sectional analytical design was used. During the mastication task of a carrot piece (2 cm in diameter and weighing 0.5 g), surface electromyography was used to record muscle activity patterns from the right and left masseter and temporalis muscles. Principal component analysis (PCA) was used to assess neuromuscular control. A z-score normalisation of the first component's variance from PCA to identify those individuals with altered neuromuscular control. A mixed ANOVA was performed to assess the interaction between principal components, groups and body composition.

RESULTS:

Thirty PWIDs (aged 35-55 years), middle-aged adults and 32 older adults were recruited. PWID and older adults showed decreased neuromuscular control of the masticatory muscles compared to middle-aged control adults (P < 0.05). PWID had the highest proportion of individuals with altered neuromuscular control of the masticatory muscle (53%) compared to older adults (19%) and middle-aged adults (0%) (P < 0.05).

CONCLUSIONS:

Our results indicate that PWID and older adults have reduced neuromuscular control compared to middle-aged adults. Notably, a significant proportion of the PWID showed altered masticatory muscle control compared to older adults. Further research is needed to explore the potential benefits of masticatory muscle training for PWID.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Abuso de Sustancias por Vía Intravenosa / Discapacidad Intelectual Tipo de estudio: Prognostic_studies Límite: Aged / Humans / Middle aged Idioma: En Revista: J Intellect Disabil Res Asunto de la revista: TRANSTORNOS MENTAIS Año: 2024 Tipo del documento: Article País de afiliación: Chile Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Abuso de Sustancias por Vía Intravenosa / Discapacidad Intelectual Tipo de estudio: Prognostic_studies Límite: Aged / Humans / Middle aged Idioma: En Revista: J Intellect Disabil Res Asunto de la revista: TRANSTORNOS MENTAIS Año: 2024 Tipo del documento: Article País de afiliación: Chile Pais de publicación: Reino Unido