Assessing Balance in Older Adults After Nighttime Awakenings
Author Information
Author(s): Gary Zammit, Sherry Wang-Weigand, Xuejun Peng
Primary Institution: Clinilabs and the Columbia University College of Physicians and Surgeons
Hypothesis
Can computerized dynamic posturography effectively measure balance impairments in older adults after nighttime awakenings and zolpidem administration?
Conclusion
Bedtime administration of zolpidem 10 mg significantly impairs dynamic standing balance in healthy older adults, while middle-of-the-night awakenings alone do not.
Supporting Evidence
- Zolpidem administration significantly decreased the SOT composite score after a middle-of-the-night awakening compared with placebo.
- Healthy older adults showed no significant impairments after a middle-of-the-night awakening without medication.
- The SOT assessment successfully detected dynamic standing balance impairments due to zolpidem.
Takeaway
This study looked at how getting up at night and taking a sleep medicine affects balance in older people. It found that the medicine can make it harder to stay balanced.
Methodology
Two studies used computerized dynamic posturography to evaluate balance in healthy older adults during middle-of-the-night awakenings, one being a drug-free study and the other a placebo-controlled crossover study with zolpidem.
Potential Biases
Participants were screened for various conditions that could affect balance, but the study may not account for all potential confounding factors.
Limitations
The small sample size may have limited the detection of small balance impairments.
Participant Demographics
Healthy older adults aged 65 and above, with a mean age of 68.4 years in the first study and 68.9 years in the second study.
Statistical Information
P-Value
<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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