| Behavioral assessment of the reinforcing effect of exercise in women with anorexia nervosa: further paradigm development and data. | |
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MedLine Citation:
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PMID: 19806608 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To use a Progressive Ratio (PR) computerized "work" paradigm to measure course and correlates of exercise motivation in in-patients with Anorexia Nervosa (AN). METHOD: Sixteen inpatients with AN participated in a PR task assessing the relative reinforcing effect of two different increments of cash versus the opportunity to exercise for upto 30 min, twice; at low weight, and, for n = 10 participants, after weight restoration. RESULTS: There was a trend toward a higher work for exercise with 2 versus 5 increments of cash as the alternative reinforcer. Exercise breakpoint did not differ between low and normal-weight states. Exercise breakpoint at each time point was correlated with prehospitalization exercise "commitment" (Commitment to Exercise Scale, r = .613, p = .012 at T1; r = .634, p = .049 at T2). DISCUSSION: Patients with AN will work at a PR task for access to even a small amount of exercise. Exercise motivation during hospitalization is correlated with prehospital exercise commitment and does not appear to change consistently with weight restoration. |
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Authors:
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Diane A Klein; Janet E Schebendach; Marina Gershkovich; Lindsay P Bodell; Richard W Foltin; B Timothy Walsh |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The International journal of eating disorders Volume: 43 ISSN: 1098-108X ISO Abbreviation: Int J Eat Disord Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-10-11 Completed Date: 2011-02-04 Revised Date: 2011-11-10 |
Medline Journal Info:
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Nlm Unique ID: 8111226 Medline TA: Int J Eat Disord Country: United States |
Other Details:
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Languages: eng Pagination: 611-8 Citation Subset: IM |
Copyright Information:
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© 2009 by Wiley Periodicals, Inc. |
Affiliation:
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Department of Psychiatry, Columbia University Medical Center, New York State Psychiatric Institute, New York, New York 10032, USA. dk2127@columbia.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Anorexia Nervosa / diagnosis, psychology* Body Mass Index Body Weight Exercise / psychology* Female Hospitalization Humans Middle Aged Motivation* New York Psychometrics Reinforcement (Psychology)* Token Economy Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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K23 MH071285-05/MH/NIMH NIH HHS; MH083795/MH/NIMH NIH HHS; MH65024/MH/NIMH NIH HHS; MH71285/MH/NIMH NIH HHS; R01 MH083795-01A1/MH/NIMH NIH HHS; R01 MH083795-04/MH/NIMH NIH HHS |
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