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@ARTICLE{Wunderle:1027013,
author = {Wunderle, Veronika and Kuzu, Taylan D. and Tscherpel,
Caroline and Fink, Gereon R. and Grefkes, Christian and
Weiss-Blankenhorn, Peter},
title = {{A}ge- and sex-related changes in motor functions: a
comprehensive assessment and component analysis},
journal = {Frontiers in aging neuroscience},
volume = {16},
issn = {1663-4365},
address = {Lausanne},
publisher = {Frontiers Research Foundation},
reportid = {FZJ-2024-03579},
pages = {1368052},
year = {2024},
abstract = {Age-related motor impairments often cause caregiver
dependency or evenhospitalization. However, comprehensive
investigations of the different motorabilities and the
changes thereof across the adult lifespan remain sparse.
We,therefore, extensively assessed essential basic and
complex motor functionsin 444 healthy adults covering a wide
age range (range 21 to 88 years). Basicmotor functions, here
defined as simple isolated single or repetitive movementsin
one direction, were assessed by means of maximum grip
strength (GS) andmaximum finger-tapping frequency (FTF).
Complex motor functions, comprisingcomposite sequential
movements involving both proximal and distal joints/muscle
groups, were evaluated with the Action Research Arm Test
(ARAT), theJebsen-Taylor Hand Function Test (JTT), and the
Purdue Pegboard Test. Menachieved higher scores than women
concerning GS and FTF, whereas womenstacked more pins per
time than men during the Purdue Pegboard Test. Therewas no
significant sex effect regarding JTT. We observed a
significant but taskspecificreduction of basic and complex
motor performance scores across theadult lifespan. Linear
regression analyses significantly predicted the
participants’ages based on motor performance scores (R2 =
0.502). Of note, the ratiobetween the left- and right-hand
performance remained stable across ages forall tests.
Principal Component Analysis (PCA) revealed three motor
componentsacross all tests that represented dexterity,
force, and speed. These componentswere consistently present
in young (21–40 years), middle-aged (41–60 years),and
older (61–88 years) adults, as well as in women and men.
Based on thethree motor components, K-means clustering
analysis differentiated high- andlow-performing participants
across the adult life span. The rich motor data set of444
healthy participants revealed age- and sex-dependent changes
in essentialbasic and complex motor functions. Notably, the
comprehensive assessmentallowed for generating robust motor
components across the adult lifespan. Ourdata may serve as a
reference for future studies of healthy subjects and
patientswith motor deficits. Moreover, these findings
emphasize the importance ofcomprehensively assessing
different motor functions, including dexterity, force,and
speed, to characterize human motor abilities and their
age-related decline},
cin = {INM-3},
ddc = {610},
cid = {I:(DE-Juel1)INM-3-20090406},
pnm = {5251 - Multilevel Brain Organization and Variability
(POF4-525) / DFG project 431549029 - SFB 1451:
Schlüsselmechanismen normaler und krankheitsbedingt
gestörter motorischer Kontrolle (431549029)},
pid = {G:(DE-HGF)POF4-5251 / G:(GEPRIS)431549029},
typ = {PUB:(DE-HGF)16},
pubmed = {38813530},
UT = {WOS:001234394100001},
doi = {10.3389/fnagi.2024.1368052},
url = {https://juser.fz-juelich.de/record/1027013},
}