science

Post-exercise balance briefly worsens in older adults, study finds

A study of 105 community-dwelling older adults found that treadmill exercise at or above the first ventilatory threshold briefly increased postural sway. The authors said its effect on immediate fall risk remained uncertain.

A woman breathing into a face mask connected to a portable metabolic testing unit
Photo: Cosmed / Wikimedia Commons, CC BY-SA 3.0photographer license

Researchers studied 105 community-dwelling older adults, including 50 with no fall history and 55 with a fall history. Participants completed treadmill exercise at or above the first ventilatory threshold, and researchers measured their sway before and after.1

Postural sway increased across several measures after exercise, indicating a temporary decline in balance, the study found. Aerobic fitness markers were not significantly linked to the immediate sway change, but heart-rate adaptability was associated with better balance.1

The authors said the rise in sway could reflect a short period of reduced balance stability. They said the study did not establish whether actual fall risk increased right after exertion.1

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