Muscle Quality Is Associated with History of Falls in Octogenarians

Amorim, Diane Nogueira Paranhos; Nascimento, Dahan da Cunha; Stone, Whitley; Alves, Vicente Paulo; Moraes, Clayton Franco; Vilaça, Karla Helena Coelho

doi:10.1007/s12603-020-1485-2

Cited by 15 publications

(17 citation statements)

References 43 publications

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“…The present findings suggest that a higher muscle quality could be a contributing mechanism to greater sway complexity, demonstrated by the significant positive relationship and significantly greater ML complexity in higher muscle quality compared to lower muscle quality older adults. These results may help explain previous findings demonstrating lower falls history in higher muscle quality older adults (Nogueira Paranhos Amorim et al, 2021) and indicates that greater neuromuscular function allows for greater automaticity of postural sway, as indicated by greater sway complexity (Ke R dziorek & Bła_ zkiewicz, 2020;Richer & Lajoie, 2020). However, the relatively small magnitude of the redundancy index, despite the significant canonical correlation, is likely indicative of the complex control of posture relying on sensory integration from visual, vestibular, and somatosensory sources as well as neuromuscular output.…”

Section: Discussionsupporting

confidence: 61%

“…A ging is associated with a number of changes to muscle function and characteristics including larger motor units, reduced voluntary activation, increased intramuscular adipose tissue (Frank-Wilson et al, 2018;McPhee et al, 2018), and decreased fascicle length and pennation angle (Narici & Maffulli, 2010;Wu et al, 2016). Muscle mass and strength also decrease with age leading to a decline in physical functioning and balance (Cruz-Jentoft et al, 2010), which increases the risk of falling (Nogueira Paranhos Amorim et al, 2021;Scott et al, 2014). However, the rate of decline in muscle strength is greater than that of muscle mass, resulting in a loss of muscle quality, the ratio of muscle strength to muscle mass (Delmonico et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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The Relationship between Postural Control and Muscle Quality in Older Adults

Walsh

Low

Arkesteijn

2021

Journal of Motor Behavior

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This study aimed to determine relationships between muscle quality, the ratio of muscle strength to muscle mass, and postural control and compare postural control of older adults with higher and lower muscle quality. Twenty-five older adults had leg muscle quality and postural control with eyes open and closed measured. Linear and non-linear postural control variables were calculated from center of pressure movements. There was a significant canonical correlation between muscle quality and sway complexity, but no relationship between muscle quality and sway magnitude. Higher muscle quality older adults had greater medio-lateral sway complexity than lower muscle quality older adults. These findings suggest that higher muscle quality relates to greater sway complexity in older adults, suggesting maintenance of muscle quality should be considered important to attenuate postural control declines.

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Section: Discussionsupporting

confidence: 61%

Section: Introductionmentioning

confidence: 99%

The Relationship between Postural Control and Muscle Quality in Older Adults

Walsh

Low

Arkesteijn

2021

Journal of Motor Behavior

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“…Three consecutive measurements were taken, interspersed with 1 min of rest. The highest value was considered for statistical evaluation [ 18 , 19 ].…”

Section: Methodsmentioning

confidence: 99%

“…Values ≥ 38% in women and ≥ 27% in men were considered excess body fat [ 4 ]. MQ considered the ratio of handgrip to the entire arm muscle (kgs) measured by DXA [ 19 ]. The validity and reliability of MQ is established and is commonly used in large-scale studies [ [22] , [23] , [24] ].…”

Section: Methodsmentioning

confidence: 99%

Body composition and functional performance of older adults

Amorim

Nascimento

Stone

et al. 2022

Osteoporosis and Sarcopenia

Self Cite

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“…Para os exercícios utilizando membros inferiores (leg press e cadeira extensora), as cargas de 1RM estimadas foram divididas pela massa magra dos membros inferiores (membro esquerdo + membro direito) mensurado no DXA. A validade e reprodutibilidade da força relativa de laboratório já foi reportada em estudos anteriores e é comumente utilizado em estudos de larga escala pela sua conveniência (Barbat-Artigas et al, 2013;Barbat-Artigas et al, 2012;Choquette et al, 2010;Murai et al, 2018;Naimo et al, 2021;Nogueira Paranhos Amorim et al, 2021;Studenski et al, 2014).…”

Section: Força Relativa De Campo E De Laboratóriounclassified

A medida da força muscular relativa de preensão manual representa a força muscular global em idosas?

Almeida

Durigan

Carvalho

et al. 2022

RSD

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A força de preensão manual (FPM) é considerada componente fundamental na análise da força muscular do público idoso. No entanto, dados que mostrem a sua relação com a força muscular global (FMG) ainda são inconclusivos. O objetivo do presente estudo foi investigar se a força de preensão manual relativa (FPMR) é representativa da FMG em idosas. Participaram do estudo 39 mulheres idosas (idade 69,02 ± 6,16 anos, estatura 1,55 ± 0,06 m, índice de massa corporal (IMC) 27,51 ± 4,10 kg/m², gordura 38,80 ± 6,28 %). Para mensuração da força muscular absoluta as participantes foram submetidas aos testes de 10 repetições máximas (RM), nos exercícios supino máquina, remada fechada, cadeira flexora, cadeira extensora e leg press horizontal e 1 RM foi estimada. A FPM absoluta foi avaliada utilizando um dinamômetro hidráulico de preensão manual. Para calcular a FPMR, a maior leitura foi dividida pelo IMC e massa magra dos membros superiores avaliado pelo DXA. O mesmo procedimento foi utilizado para o cálculo da força muscular relativa dos membros superiores e inferiores. Os resultados demonstraram que a FPMR apresentou correlação moderada e significativa com a força muscular relativa na cadeira flexora, supino máquina e remada fechada, porém, com os outros exercícios não houve correlação. Com isso, os dados do presente estudo demonstram que embora a FPMR tenha apresentado correlação moderada e significativa com a força muscular relativa dos membros superiores e inferiores, ainda é recomendada precaução ao afirmar que a FPMR é representativa da FMG em idosas.

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Muscle Quality Is Associated with History of Falls in Octogenarians

Cited by 15 publications

References 43 publications

The Relationship between Postural Control and Muscle Quality in Older Adults

The Relationship between Postural Control and Muscle Quality in Older Adults

Body composition and functional performance of older adults

A medida da força muscular relativa de preensão manual representa a força muscular global em idosas?

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