Beetroot Juice before Exercise Keeps Aging Brain Sharp
21 Avril, 2017, 03:13 | Author: Cyril Hebras
Drinking beetroot juice before working out makes the brains of older adults with high blood pressure perform like younger brains, says a study from Wake Forrest University.
We knew, going in, that a number of studies had shown that exercise has positive effects on the brain.
They said they suggest what we eat as we age could be vitally important to the maintenance of our brain health and functional independence.
Rejeski is Thurman D. Kitchin Professor and Director of the Behavioral Medicine Laboratory in the Department of Health & Exercise Science. "It has also been shown that ingestion of beetroot juice increases blood flow to the brain and enhances exercise performance", the study authors said.
Meredith Petrie, a former student of Rejeski's, headed up the experiment, the first to test the combined effects of exercise and beetroot juice on functional brain networks in the motor cortex and secondary connections between the motor cortex and the insula.
For the finding, researchers from Wake Forest University in the U.S. studied about 26 men and women aged 55 and older who did not exercise, had high blood pressure and took no more than two medications for high blood pressure. Three times a week for six weeks, they drank a beetroot juice supplement called Beet-It Sport Shot one hour before a moderately intense, 50-minute walk on a treadmill. Half received a juice containing 560mg of nitrate, while the other drank a placebo. This root veggie is linked to these healthy outcomes because it's filled with nitrates, which are transformed by the body into nitric oxide, a chemical compound that is imperative for good blood flow and a properly functioning metabolism.
"Nitric oxide is a really powerful molecule", Rejeski stated. "It goes to the areas of the body which are hypoxic, or needing oxygen, and the brain is a heavy feeder of oxygen in your body", said Rejeski.
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The team found that subjects who consumed the beetroot juice supplement prior to exercising demonstrated a structurally stronger somatomotor cortex - a brain region that helps to control body movement - compared with participants who consumed the placebo. Exercise should strengthen the somatomotor cortex.
Combining the two - beetroot juice and exercise - delivers even more oxygen to the brain, creating an excellent environment for strengthening the somatomotor cortex.
Bright-red beetroot juice has been found in a bevy of recent studies to provide a bunch of great benefits like increased stamina and improved blood flow, and lowered inflammation, high blood pressure, and heart disease risk.
The study was supported by the Translational Science Center of Wake Forest and received funding from the National Institutes of Health.
A new study has claimed that drinking this juice before exercise makes the brain of older adults perform more efficiently, mirroring the functions of a younger brain.
This isn't the first study to find that beets have a positive effect on health and exercise.
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