So a long, long time ago, the Central Park jogger, Trisha Meili,
came to me because she felt that her exercise--her running--
played a significant role in her recovery.
And she said, "Okay, do some research."
At that particular time, we were doing a large quality-of-life study
of folks with brain injury.
So we put in some questions about exercise: Do you exercise?
If you do exercise, what do you do?
How often and for how long--how many times a week?
And we had a group of people without brain injury,
and what we did is looked at the folks with brain injury who did and did not exercise
and the folks without a brain injury who did and did not exercise,
and we saw that the folks with brain inury who did exercise
reported fewer cognitive symptoms and were less depressed.
The folks without a brain injury weren't depressed,
and they didn't report cognitive symptoms.
So that was not new, because there was a lot of literature
in terms of exercise being a valuable treatment in terms of depression,
but it's the first time the link to improved cognitive function had been made.
So we're now in the middle of doing a clinical trial
where we're using 2 doses of exercise with folks with TBI.
It's interesting because there's been 1 study--there's been some animal work
in which they've shown that exercise promotes regrowth--neuro-regeneration in the hippocampus,
which is the area of the brain that controls memory.
And there's been 1 study with humans--a very small sample--
in which the folks in that study followed an exercise regimen,
and they did pre- and post-functional MRIs on these folks,
and they showed there was increased blood flow in the hippocampus.
So now we have some evidence of regeneration in that area of the brain,
in people without a brain injury.
We're not doing the neuro-imaging; it's too expensive.
But we are looking at the outcomes; we're looking at our mood, cognition, and fatigue.
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Research studies show that people with TBI who exercise show fewer symptoms of depression, fatigue, and cognitive problems.
Produced by Noel Gunther, Ashley Gilleland, Victoria Tilney McDonough, and Brian King.
Wayne Gordon, PhD, ABPP/Cn, is the Jack Nash Professor of Rehabilitation Medicine and associate director of the Department of Rehabilitation Medicine at the Mount Sinai School of Medicine. He is a neuropsychologist and the director of the Mount Sinai Brain Injury Research Center.
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