Show simple item record

dc.contributor.author
Wearing, Julie
dc.contributor.author
Stokes, Maria
dc.contributor.author
de Bie, Rob A.
dc.contributor.author
de Bruin, Eling D.
dc.date.accessioned
2021-02-25T14:57:14Z
dc.date.available
2021-01-31T11:08:16Z
dc.date.available
2021-02-25T14:57:14Z
dc.date.issued
2020
dc.identifier.isbn
10.14283/jnhrs.2012.0
en_US
dc.identifier.other
10.14283/JNHRS.2020.30
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/466894
dc.description.abstract
Background: Age-related neurological and muscular changes lead to low strength and function in older people. The proportional contribution of these changes to strength decline alters with increasing age. However, it is not clear how the muscle changes in older people which have excessive loss of strength due to multimorbidity and inactivity. Unlike community-living older adults, intramuscular alterations are rarely evaluated in nursing-home residents despite their potential importance for specific sarcopenia assessment and guiding interventions to improve strength. Objectives: To explore potential relationships between muscle strength, muscle quantity, contractile quality and physical activity in older nursing-home residents. Design: A cross-sectional proof-of-concept study. Setting: A nursing-home in Switzerland. Participants: 24 nursing-home residents, median age (range) 86.5 (68-103) years. Measurements: Sonographic measures of muscle thickness and echotexture were used as surrogate measures of muscle quantity and contractile quality of the quadriceps muscle. The relationship between sonographic measures and isometric strength of the knee extensors, gait speed and physical activity was evaluated using Pearson’s and Spearman’s correlation coefficients. A subgroup analysis of low (n=12) and normal (n=12) physical activity, based on energy expenditure cut off values of 383 kcal/week for men and 270 for women, was also undertaken. Results: In nursing home residents with normal physical activity, muscle quality positively correlated with knee extensor strength (r=0.727, p=.007) and gait speed (r=0.588, p=.044) while muscle thickness was not (p=0.966 and p=.564 respectively). There was no correlation among variables for n=24 or the subgroup with low physical activity. Conclusions: The results provide proof of concept that poor muscle quality is associated with low strength in older nursing-home residents that are physically active. Ultrasound derived muscle quality assessment has potential to detect activity-related muscle differences in old age, associated with sarcopenia, and may be more appropriate than muscle thickness measures.
en_US
dc.language.iso
en
en_US
dc.publisher
The Journal of Nursing Home Research Science (JNHRS)
en_US
dc.subject
Knee extensor strength
en_US
dc.subject
Muscle quality
en_US
dc.subject
Heterogeneity
en_US
dc.subject
Nursing-home residents
en_US
dc.subject
Physical activity
en_US
dc.title
Relationship between sonographic index of muscle quality and quadriceps muscle strength in nursing-home residents – a proof-of-concept study
en_US
dc.type
Journal Article
ethz.journal.title
The Journal of Nursing Home Research Science
ethz.journal.volume
6
en_US
ethz.pages.start
120
en_US
ethz.pages.end
126
en_US
ethz.publication.place
Auzeville Tolosane
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02070 - Dep. Gesundheitswiss. und Technologie / Dep. of Health Sciences and Technology::02535 - Institut für Bewegungswiss. und Sport / Institut of Human Movement Sc. and Sport::09560 - De Bock, Katrien / De Bock, Katrien::08758 - Trainingslehre / E. de Bruin
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02070 - Dep. Gesundheitswiss. und Technologie / Dep. of Health Sciences and Technology::02535 - Institut für Bewegungswiss. und Sport / Institut of Human Movement Sc. and Sport::09560 - De Bock, Katrien / De Bock, Katrien::08758 - Trainingslehre / E. de Bruin
en_US
ethz.date.deposited
2021-01-31T11:08:23Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-02-25T14:57:26Z
ethz.rosetta.lastUpdated
2021-02-25T14:57:26Z
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Relationship%20between%20sonographic%20index%20of%20muscle%20quality%20and%20quadriceps%20muscle%20strength%20in%20nursing-home%20residents%20%E2%80%93%20a%20proof-of-co&rft.jtitle=The%20Journal%20of%20Nursing%20Home%20Research%20Science&rft.date=2020&rft.volume=6&rft.spage=120&rft.epage=126&rft.au=Wearing,%20Julie&Stokes,%20Maria&de%20Bie,%20Rob%20A.&de%20Bruin,%20Eling%20D.&rft.isbn=10.14283/jnhrs.2012.0&rft.genre=article&rft_id=info:doi/10.14283/JNHRS.2020.30&
 Search print copy at ETH Library

Files in this item

FilesSizeFormatOpen in viewer

There are no files associated with this item.

Publication type

Show simple item record