Highlights
- •Women, especially the young-old group, have better static balance than men.
- •Men have better dynamicbalance than women.
- •Posture-unrelated attention control is related to static balance in women.
- •Posture-unrelated attention control is related to dynamic balance in men.
- •Postural control is explained by “basic” inhibition and by auditory-distraction tasks.
Abstract
Objectives
The link between postural control and cognition is under-studied, especially in healthy
older adults. In the present study, we examined the link between postural control
and posture-unrelated attention control.
Study design and outcome measures
Healthy individuals (n = 112) – men aged 77.2 ± 5.5, and two groups of women, aged
78.6 ± 3.5 and 68.9 ± 3.7 – participated in this cross-sectional study. Postural control
was assessed by static balance (SB) posturography in eight standing positions, and
by two measures of dynamic balance (DB): the Timed Up-and-Go (TUG) test, and the Functional
Reach Test (FRT). Attention control (inhibition) was assessed by the Continuous Performance
Test (CPT) measuring Go/NoGo tasks with and without visual and audio distractors.
Results
Men tended to perform better on DB and women on SB. In the men, significant correlations
were observed between Go/NoGo tasks and DB (r range: 0.373 to 0.653 for TUG, and -0.342
to -0.530 for FRT). In the younger women, Go/NoGo tasks were correlated with SB (r
range: 0.323 to 0.572), and no correlations were observed in the older women. Go/NoGo
tasks without distractions followed by tasks with audio distractors explained postural
control measures.
Conclusions
Posture-unrelated attention inhibition was associated with SB in the women and with
DB in the men. Tasks with no distractions explained the variability in postural control
in both genders. It is recommended to examine the effect of balance exercises on postural
control and posture-unrelated attention control in both genders, and the contribution
of the relationship between postural control and posture-unrelated attention control
to falls in old age.
Keywords
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Article info
Publication history
Published online: August 11, 2018
Accepted:
August 4,
2018
Received in revised form:
July 18,
2018
Received:
March 18,
2018
Identification
Copyright
© 2018 Published by Elsevier B.V.