Use-dependent corticospinal excitability is associated with resilience and physical performance during simulated military operational stress

Author:

Proessl F.1ORCID,Canino M. C.1,Beckner M. E.1ORCID,Conkright W. R.1ORCID,LaGoy A. D.12,Sinnott A. M.1,Eagle S. R.1,Martin B. J.1,Sterczala A. J.1ORCID,Roma P. G.3,Dretsch M. N.4,Mi Qi1,Ferrarelli F.2,Germain A.2,Connaboy C.1ORCID,Nindl B. C.1,Flanagan S. D.1ORCID

Affiliation:

1. Neuromuscular Research Laboratory/Warrior Human Performance Research Center, Department of Sports Medicine and Nutrition, University of Pittsburgh, Pittsburgh, Pennsylvania

2. Department of Psychiatry, University of Pittsburgh Medical School, Pittsburgh, Pennsylvania

3. Behavioral Health & Performance Laboratory, Biomedical Research and Environmental Sciences Division, Human Health and Performance Directorate, NASA Johnson Space Center/KBR, Houston, Texas

4. U.S. Army Medical Research Directorate-West, Walter Reed Army Institute of Research, Joint Base Lewis-McChord, Washington

Abstract

We demonstrate that individual differences in physical activity levels coincide with lower limb corticospinal excitability. Such use-dependent corticospinal excitability directly relates to resilience and physical performance during a 5-day simulation of military operational stress with caloric restriction, sleep restriction and disruption, and heavy physical and cognitive exertion.

Funder

U.S. Department of Defense

National Aeronautics and Space Administration

Publisher

American Physiological Society

Subject

Physiology (medical),Physiology

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