Document Detail

Effects of acute 60 and 80% VO2max bouts of aerobic exercise on state anxiety of women of different age groups across time.
MedLine Citation:
PMID:  15209335     Owner:  NLM     Status:  MEDLINE    
The purpose of this investigation was to study the effects of an acute bout of aerobic exercise on state anxiety of women while controlling for iron status (hemoglobin and serum ferritin). Participants were 24 active women, ages 18-20 years (n = 12) and 35-45 years (n = 12). In addition to a nonexercise control condition, participants completed one exercise bout at 60% maximal oxygen uptake (VO2max) and one at 80% VO2max. Each exercise session consisted of a 33-min bout in which participants exercised at their target intensities for a 20-min segment. Immediately before each exercise trial, participants were given the Spielberger State Anxiety Inventory (SAI). The SAI was again administered immediately following the exercise session and at 30, 60, and 90 min postexercise. Data were analyzed using an Age x Intensity x Time (2 x 3 x 5) repeated measures analysis of covariance (ANCOVA) with iron status serving as the covariate. The ANCOVA on state anxiety yielded significant effects for time (p < .0001, eta2(p) = .48), the Intensity x Time interaction (p = .0006, eta2(p) = .19), and the Intensity x Age interaction (p = .04, eta2(p) = .15). All three exercise conditions (including control) showed a decline in state anxiety across time, but the 80% VO2max condition showed a sharper decline. Intensity of exercise conditions did not differ in state anxiety at baseline or immediately after exercise, but a difference favoring the 80% VO2max condition over the control condition emerged at 30 min postexercise. After controlling for iron status, older women who exercised at 80% VO2max exhibited lower SAI scores compared to the control condition.
Richard H Cox; Tom R Thomas; Pam S Hinton; Owen M Donahue
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Research quarterly for exercise and sport     Volume:  75     ISSN:  0270-1367     ISO Abbreviation:  Res Q Exerc Sport     Publication Date:  2004 Jun 
Date Detail:
Created Date:  2004-06-22     Completed Date:  2004-08-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8006373     Medline TA:  Res Q Exerc Sport     Country:  United States    
Other Details:
Languages:  eng     Pagination:  165-75     Citation Subset:  IM    
Department of Educational and Counseling Psychology, University of Missouri-Columbia, 65211, USA.
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MeSH Terms
Analysis of Variance
Anxiety / physiopathology*
Cardiovascular Diseases
Exercise / physiology*,  psychology*
Iron / blood
Middle Aged
Oxygen Consumption / physiology*
United States
Reg. No./Substance:

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