Reinforcing Exercise in Substance Abusing Patients

Study Overview
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Brief Summary
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This study will evaluate the efficacy of an exercise-based contingency management (CM) intervention. A total of 120 substance abusing patients in intensive outpatient treatment will be randomly assigned to one of two conditions: (a) standard care plus CM for completing goal-related activities not related to exercising (e.g., improving work, family, or transportation issues), or (b) standard care plus CM for completing exercise-related activities. Compared to those receiving goal-related CM activity contracting, it is expected that those in the exercise CM condition will participate in more physical activities and develop greater strength and flexibility, decrease drug use, reduce HIV risk behaviors, lessen depressive symptoms, and improve health indices.

Official Title
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Reinforcing Exercise in Substance Abusing Patients

Conditions
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Substance Abuse, Contingency Management, Exercise

Intervention / Treatment
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* Behavioral: Contingency Management


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: age 18-65 years English speaking in substance abuse treatment written permission from a physician (or their designated health care professional, e.g., nurse, physicians assistant) to participate in the study and an exercise program. Exclusion Criteria: inability to comprehend the study in recovery for pathological gambling contraindication for exercising

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: CM for general activities<br>Standard care plus individual contingency management session for general activities | Behavioral: Contingency Management<br>* Participants earn the chance to win prizes for the targeted behavior.<br>|
| Experimental: CM for exercise-related activities<br>Standard care plus individual contingency management session for physical activities | Behavioral: Contingency Management<br>* Participants earn the chance to win prizes for the targeted behavior.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| physical activity participation and functioning measured by the PAQ (Kcal/wk expenditures) |  | baseline | 
| physical activity participation and functioning measured by the PAQ (Kcal/wk expenditures) |  | month 2 | 
| physical activity participation and functioning measured by the PAQ (Kcal/wk expenditures) |  | month 4 | 
| physical activity participation and functioning measured by the PAQ (Kcal/wk expenditures) |  | month 6 | 
| physical activity participation and functioning measured by the PAQ (Kcal/wk expenditures) |  | month 9 | 
| physical activity participation and functioning measured by the PAQ (Kcal/wk expenditures) |  | month 12 | 
| attendance at exercise classes |  | baseline | 
| attendance at exercise classes |  | month 2 | 
| attendance at exercise classes |  | month 4 | 
| attendance at exercise classes |  | month 6 | 
| attendance at exercise classes |  | month 9 | 
| attendance at exercise classes |  | month 12 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| longest duration of abstinence |  | baseline | 
| longest duration of abstinence |  | month 2 | 
| longest duration of abstinence |  | month 4 | 
| longest duration of abstinence |  | month 6 | 
| longest duration of abstinence |  | month 9 | 
| longest duration of abstinence |  | month 12 | 
| HIV risk behaviors as reported on HRBS questionnaire |  | baseline | 
| HIV risk behaviors as reported on HRBS questionnaire |  | month 2 | 
| HIV risk behaviors as reported on HRBS questionnaire |  | month 4 | 
| HIV risk behaviors as reported on HRBS questionnaire |  | month 6 | 
| HIV risk behaviors as reported on HRBS questionnaire |  | month 9 | 
| HIV risk behaviors as reported on HRBS questionnaire |  | month 12 | 
| psychological distress as reported on BSI questionnaire |  | baseline | 
| psychological distress as reported on BSI questionnaire |  | month 2 | 
| psychological distress as reported on BSI questionnaire |  | month 4 | 
| psychological distress as reported on BSI questionnaire |  | month 6 | 
| psychological distress as reported on BSI questionnaire |  | month 9 | 
| psychological distress as reported on BSI questionnaire |  | month 12 |