Creatine supplementation and cognitive performance in elderly individuals
Key Finding
Creatine supplementation significantly improved working memory and spatial memory in elderly individuals.
Plain-English Summary
This randomized, double-blind, placebo-controlled trial investigated creatine supplementation on cognitive performance in 32 elderly individuals (average age 76). Participants received 20 grams of creatine daily for one week, followed by 5 grams daily for one week, or placebo.
The creatine group showed significant improvements in working memory, random number generation tasks, and spatial memory compared to placebo. Effects were particularly pronounced on tasks requiring rapid processing and manipulation of information.
In elderly individuals, brain creatine levels tend to decline with age, potentially contributing to cognitive decline. Creatine supplementation helps maintain ATP levels in the brain during demanding cognitive tasks, essentially providing more energy for neurons. This is especially important for the prefrontal cortex and hippocampus, brain regions vulnerable to age-related changes. The study suggests creatine may be particularly beneficial for maintaining cognitive function in older adults.