Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
INTERVENTIONAL
1996-05-31
2001-04-30
Brief Summary
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Detailed Description
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Even though exercise improves long-term weight loss maintenance and reduces the risks of cardiovascular disease and Type II diabetes mellitus, obese adults are prone to drop out of exercise programs. Dr. Jakicic's prior findings suggest that exercise adherence can be enhanced and short-term weight loss can be improved by making exercise more convenient via prescribing exercise in multiple short bouts, rather than one bout per day. Effects on long-term exercise adherence and weight loss have not been examined, however. His findings also suggest that providing more exercise options by placing exercise equipment in the home may also increase adherence, as evidenced by a significant correlation between the presence of home exercise equipment and physical activity. However, no experimental studies have tested whether placing exercise equipment in the home actually increases exercise adherence and weight loss.
DESIGN NARRATIVE:
The study tested the hypothesis that prescribing exercise in multiple short bouts would improve long-term exercise adherence and long-term weight loss, and that the addition of home exercise equipment would further improve these outcomes. A total of 148 overweight women were recruited and randomized to one of three treatments: 1) long-bout exercise; 2) short-bout exercise; 3) short- bout exercise + home exercise equipment. All subjects participated in an 18-month behavioral weight loss program, in which body weight was assessed at 0, 6, 12, and 18 months and exercise adherence was assessed throughout the 18 months. Cardiorespiratory fitness and cardiovascular disease risk factors were measured at 0, 6, and 18 months.
The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record.
Conditions
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Study Design
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RANDOMIZED
Interventions
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exercise
weight loss
Eligibility Criteria
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Inclusion Criteria
100 Years
MALE
No
Sponsors
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National Heart, Lung, and Blood Institute (NHLBI)
NIH
Principal Investigators
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John Jakicic
Role:
The Miriam Hospital
References
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Jakicic JM, Winters C, Lang W, Wing RR. Effects of intermittent exercise and use of home exercise equipment on adherence, weight loss, and fitness in overweight women: a randomized trial. JAMA. 1999 Oct 27;282(16):1554-60. doi: 10.1001/jama.282.16.1554.
Jakicic JM, Winters C, Lagally K, Ho J, Robertson RJ, Wing RR. The accuracy of the TriTrac-R3D accelerometer to estimate energy expenditure. Med Sci Sports Exerc. 1999 May;31(5):747-54. doi: 10.1097/00005768-199905000-00020.
Dunn AL, Andersen RE, Jakicic JM. Lifestyle physical activity interventions. History, short- and long-term effects, and recommendations. Am J Prev Med. 1998 Nov;15(4):398-412. doi: 10.1016/s0749-3797(98)00084-1.
Jakicic JM, Lang W, Wing RR. Do African-American and Caucasian overweight women differ in oxygen consumption during fixed periods of exercise? Int J Obes Relat Metab Disord. 2001 Jul;25(7):949-53. doi: 10.1038/sj.ijo.0801632.
Jakicic JM, Wing RR, Winters-Hart C. Relationship of physical activity to eating behaviors and weight loss in women. Med Sci Sports Exerc. 2002 Oct;34(10):1653-9. doi: 10.1097/00005768-200210000-00018.
Gallagher KI, Jakicic JM, Kiel DP, Page ML, Ferguson ES, Marcus BH. Impact of weight-cycling history on bone density in obese women. Obes Res. 2002 Sep;10(9):896-902. doi: 10.1038/oby.2002.123.
Other Identifiers
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4967
Identifier Type: -
Identifier Source: org_study_id
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