Journal of Applied Physiology Fuel your research with LabChart
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 91: 821-831, 2001;
8750-7587/01 $5.00
This Article
Right arrow Full Text Free
Right arrow Full Text (PDF) Free
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via ISI Web of Science (16)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Noteboom, J. T.
Right arrow Articles by Enoka, R. M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Noteboom, J. T.
Right arrow Articles by Enoka, R. M.
Vol. 91, Issue 2, 821-831, August 2001

Activation of the arousal response can impair performance on a simple motor task

J. Timothy Noteboom, Monika Fleshner, and Roger M. Enoka

Department of Kinesiology and Applied Physiology, University of Colorado, Boulder, Colorado 80309-0354

The purpose of this study was to determine the effect of arousal in men and women on the moment-to-moment performance of a simple motor task. We examined the control of a precision task in the presence and absence of imposed stressors. Twenty-nine subjects (14 men, 15 women; 18-44 yr) were randomly assigned to either a control group or one of two stressor groups, Mental Math or Electric Shock. Subjects presented with Math and Shock stressors, which lasted 10 min, experienced significant increases in cognitive and physiological arousal compared with baseline and control subjects. Heart rate, systolic blood pressure, and electrodermal activity were elevated 5-80% with presentation of the stressors, whereas diastolic blood pressure and salivary cortisol were unchanged. The greater levels of cognitive and physiological arousal were associated with reductions in steadiness of a pinch grip for the Shock subjects (~130% reduction from baseline) but not for the subjects in the Math group, who experienced heightened arousal but no change in steadiness (10% reduction from baseline). Although women exhibited more of a reduction in steadiness than men, the effect was largely unrelated to the magnitude of the change in arousal.

stressor; steadiness; pinch task; force


This article has been cited by other articles:


Home page
 J. Appl. Physiol.Home page
N. Hjortskov, J. Skotte, C. Hye-Knudsen, and N. Fallentin
Sympathetic outflow enhances the stretch reflex response in the relaxed soleus muscle in humans
J Appl Physiol, April 1, 2005; 98(4): 1366 - 1370.
[Abstract] [Full Text] [PDF]

Home page
 J. Clin. Endocrinol. Metab.Home page
F. S. Maheu, R. Joober, and S. J. Lupien
Declarative Memory after Stress in Humans: Differential Involvement of the {beta}-Adrenergic and Corticosteroid Systems
J. Clin. Endocrinol. Metab., March 1, 2005; 90(3): 1697 - 1704.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
E. A. Christou, J. M. Jakobi, A. Critchlow, M. Fleshner, and R. M. Enoka
The 1- to 2-Hz oscillations in muscle force are exacerbated by stress, especially in older adults
J Appl Physiol, July 1, 2004; 97(1): 225 - 235.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online