So coffee improves postural stability. The next test should by to perturb your stability by drinking red wine and see if coffee can stabilize it after that.
Abstract
OBJECTIVE:
To
evaluate the effect of caffeine on balance control of hemiparetic
stroke patients, we investigated the difference in postural stability
before and after drinking coffee by observing changes in stability index
(SI) from posturography.
METHODS:
Thirty
patients with history of stroke and 15 age-matched healthy subjects
participated in this study. Effect of group factor (of the control and
stroke groups) and treatment factor (pre- and post-drinking of coffee)
on SI were tested in three conditions: with eyes opened, with eyes
closed, and with a pillow support. The effects of these factors on
visual deprivation and somatosensory change of subjects were also
tested.
RESULTS:
Under
all conditions, SI was higher in the stroke group than in the control
group. Under eyes-open condition, the treatment factor was not
statistically significant. Under eyes-closed condition, the interaction
between group and treatment factor was statistically significant. After
the subjects drank coffee, SI in the control group was increased.
However, SI in the stroke group was decreased. Under pillow-supported
condition, the interaction between group and treatment factor appeared
marginally significant. For visual deprivation effect, the interaction
between treatment and group factor was statistically significant. After
caffeine consumption, the visual deprivation effect was increased in
control group but decreased in the stroke group. For somatosensory
change effect, the interaction between group and treatment factor was
not statistically significant.
CONCLUSION:
Postural
stability of hemiparetic stroke patients related to somatosensory
information was improved after intake of usual dose of caffeine.
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