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Gluteal muscle composition differentiates fallers from non-fallers in community dwelling older adults.


ABSTRACT: Impaired balance, loss of mobility and falls are major problems associated with changes in muscle in older adults. However, the extent to which muscle composition and related performance measures for different lower limb muscles are associated with falls in older individuals is unclear. This study evaluated lower limb muscle attenuation, intramuscular adipose tissue (IMAT) infiltration and muscle performance in older fallers and non-fallers.For this cross-sectional study, fifty-eight community dwelling older individuals (>65 years) were classified into fallers (n?=?15) or non-fallers (n?=?43). Computed tomography (CT) was used to determine muscle attenuation and intramuscular adipose tissue (IMAT) of multiple thigh and hip muscles. Muscle performance was assessed with isokinetic dynamometry.For both groups, Rectus Femoris showed the highest muscle attenuation and lowest IMAT infiltration, and Gluteus Maximus and Gluteus Medius/Minimus muscles had the lowest muscle attenuation and highest IMAT infiltration. Fallers exhibited lower muscle attenuation and higher IMAT infiltration than non-faller participants in most muscles, where the gluteal muscles were the most affected (p?

PROVIDER: S-EPMC4101852 | BioStudies | 2014-01-01T00:00:00Z

REPOSITORIES: biostudies

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