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Mediators and Moderators of Exercise Behavior Change (COSTRIDE)

University of New Mexico (UNM) logo

University of New Mexico (UNM)

Status

Completed

Conditions

Increase Positive Attitudes, Perceived Normative Support, Self-efficacy, and Intentions
Validate STRIDE Exercise Intervention in Sedentary Individuals
Increase Self-reported Physical Activity

Treatments

Behavioral: STRIDE

Study type

Interventional

Funder types

Other
NIH

Identifiers

NCT01091857
0604.12
1R01CA109858-01 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

Rates of cancer and cardiovascular disease have shown very little improvement over the past two decades, and the incidence of Type II diabetes mellitus is increasing at an alarming rate. Recent reports estimate that approximately 30% of total cancer deaths are related to poor exercise and nutrition, and other reports have suggested that, when taking into consideration both cardiovascular disease and cancer, inactivity contributes to as many as 250,000 premature deaths per year (Booth et al., 2002). Despite the benefit of regular physical activity in the prevention of cancer and other debilitating illnesses, 75% of the U.S. population do not get the recommended amount of physical activity as defined by 30 minutes of moderate intensity physical activity 5 or more days per week (CDC, 2001), and 40% of the population is completely sedentary (USDHHS, 19960. The objective of the proposed research is to understand the mediators and moderators of a well-tested individually tailored, print-based intervention to increase exercise behavior among sedentary adults. Using a randomized, controlled intervention ton trial, the proposed study will address three primary and one secondary hypotheses: 1) A previously tested and validated exercise promotion intervention (c.f., Marcus et al., 1998) is successful at helping sedentary individuals initiate and maintain a moderate intensity physical activity regimen, as compared to a health and wellness control intervention, 2) Increases in positive attitudes, perceived normative support, self-efficacy, and intentions to exercise will mediate the effectiveness of the intervention, 3) That increased positive mood, and better temperature, stress, and lactate regulation immediately after exercise challenge (assessed in the laboratory) will moderate the effectiveness of the intervention, and 4) Secondarily, we will test whether gender, race/ethnicity, and two recently suggested genetic factors (BDNF and OPRM1) moderate the effectiveness of the intervention. The rigorous assessment of how and for whom an exercise promotion intervention is effective will provide information for future development of intervention strategies and content, as well as allow the targeting of exercise content to individuals for whom it is most likely to be effective.

Enrollment

238 patients

Sex

All

Ages

18 to 45 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • All participants were required to exercise less than 90 minutes per week on average, have a body mass index (BMI) between 18 and 37.5, be physically capable of engaging in moderate-intensity physical activity, have a regular menstrual cycle (if female), be willing to be randomly chosen for one of the two interventions, and give informed consent.

Exclusion criteria

  • Individuals were excluded if they smoked cigarettes, were on a restricted diet, taking psychotropic medications, receiving treatment for any psychiatric disorder, diabetic, had a history of cardiovascular or respiratory disease, had the flu or illness in the previous month, or were pregnant (if female).

Trial design

Primary purpose

Other

Allocation

Randomized

Interventional model

Factorial Assignment

Masking

Single Blind

238 participants in 2 patient groups

Exercise intervention (STRIDE)
Experimental group
Treatment:
Behavioral: STRIDE
Health and Wellness Control
Active Comparator group
Treatment:
Behavioral: STRIDE

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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