Aerobic Exercise Improves Cortical Inhibitory Function After Stroke: A Preliminary Investigation

Jacqueline A. Palmer; Alicen A. Whitaker; Aiden M. Payne; Bria L. Bartsch; Darcy S. Reisman; Pierce Boyne; Sandra A. Billinger

doi:10.1097/npt.0000000000000453

July 10, 2023Neurology ReportOpen Access

Aerobic Exercise Improves Cortical Inhibitory Function After Stroke: A Preliminary Investigation

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Key Points

To assess the effects of a 4-week aerobic exercise program on cortical inhibition, facilitation, and cognitive executive function in individuals recovering from chronic stroke.
Twelve individuals with chronic stroke (>6 months post-stroke) completed a 4-week aerobic exercise intervention consisting of 40-minute sessions held 3 times per week.
Electroencephalography markers (N2 and frontal P3 event-related potentials) and response times were measured during congruent and incongruent trials of an Eriksen Flanker task.
Aerobic fitness (peak oxygen uptake via treadmill test) was evaluated pre- and post-intervention, and acute blood lactate levels were measured within 1 minute post-exercise weekly.
Response inhibition speed significantly improved post-intervention, whereas response facilitation speeds showed no change.
A novel post-intervention relationship emerged between earlier cortical N2 latencies and faster response inhibition times.
Higher blood lactate accumulation during exercise sessions correlated with faster response inhibition and earlier cortical N2 responses, while changes in peak oxygen uptake showed no association with behavioral or neurophysiologic metrics.

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Implication

Interventional study reveals enhanced response inhibition speed following aerobic exercise in chronic stroke, suggesting therapeutic benefits linked to lactate accumulation.

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Cite This Study

Palmer et al. (2023) studied this question.

synapsesocial.com/papers/6a70aec231a3df824328f122 https://doi.org/10.1097/npt.0000000000000453

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Aerobic Exercise Improves Cortical Inhibitory Function After Stroke: A Preliminary Investigation

Key Points

No abstract yet

Implication

Discussion

Cite This Study

Aerobic Exercise Improves Cortical Inhibitory Function After Stroke: A Preliminary Investigation

Key Points

No abstract yet

Implication

Discussion

Cite This Study

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