- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT00142688
Examining Psychosocial Mediators of Exercise Behavior
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Descripción detallada
BACKGROUND:
Physical inactivity is related to many health problems, including increased risk of cardiovascular disease, hypertension, and cancer. Despite the health consequences of a sedentary lifestyle, only 25 percent of Americans meet the recommended levels of physical activity. Researchers postulate that theory-based interventions effectively influence physical activity behavior by changing theoretical constructs believed to be important for behavior change (i.e., potential mediators), such as self-efficacy (i.e., confidence in one's ability to be physically active). Unfortunately, previous studies have generally failed to adequately test the mediating effect of theoretical constructs using appropriate statistical mediator analyses as recommended by leading behavioral scientists and statisticians.
DESIGN NARRATIVE:
The study will examine the mediating effect of theoretical constructs based on the Transtheoretical Model (TTM) and Social Cognitive Theory (SCT). The study will address the methodological, measurement, and statistical limitations of previous studies. The investigators will randomly assign 420 healthy sedentary individuals to either a theory-based physical activity intervention or a contact control group. Physical activity behavior and the potential mediators will be assessed monthly over 12 months. They hypothesize that constructs based on the TTM and SCT (i.e., behavioral processes, cognitive processes, self-efficacy, and decisional balance) will mediate the relationship between group assignment (intervention vs. contact control) and physical activity behavior, such that the effect of the intervention on physical activity behavior relative to the contact control group will be attenuated when controlling for the mediators. They will also examine the importance of particular mediators for different population groups (e.g., age, gender), which will help to create more effective interventions for these groups. Finally, they will conduct a cost analysis to not only inform policy makers of the cost of delivering the intervention within our study but also to estimate the cost of delivering each component of the intervention (i.e., mediator). The analysis will estimate the cost of future refined interventions that incorporate those active components that affect the mediators and physical activity in this study. In summary, the study will identify which mediators (i.e., theoretical constructs) are most effective for increasing physical activity, which will have an important public health impact given that this will likely lead to more efficacious and less costly interventions.
Tipo de estudio
Inscripción (Actual)
Fase
- Fase 1
Contactos y Ubicaciones
Ubicaciones de estudio
-
-
Minnesota
-
Minneapolis, Minnesota, Estados Unidos, 55440
- HealthPartners Research Foundation
-
-
Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
- In good health
- Living a sedentary lifestyle
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Prevención
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
---|---|
Experimental: 1
Tailored print-based intervention in which participants complete questionnaires and receive tailored feedback based on responses to the questionnaires.
The intervention is delivered monthly during the first month, bi-monthly during months 2 and 3, and monthly during months 4-6.
The intervention is completed through the mail.
|
Tailored print-based intervention in which participants complete questionnaires and receive tailored feedback based on responses to the questionnaires.
The intervention is delivered monthly during the first month, bi-monthly during months 2 and 3, and monthly during months 4-6.
The intervention is completed through the mail.
|
Comparador activo: 2
Participants receive wellness materials delivered through the mail on the same schedule as the experimental condition.
Physical activity materials are given to this group upon completion of the study.
|
Participants receive wellness materials delivered through the mail on the same schedule as the experimental condition.
Physical activity materials are given to this group upon completion of the study.
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Periodo de tiempo |
---|---|
Physical activity
Periodo de tiempo: Measured at baseline, 6, and 12 months
|
Measured at baseline, 6, and 12 months
|
Colaboradores e Investigadores
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Beth A. Lewis, PhD, HealthPartners Institute
Publicaciones y enlaces útiles
Publicaciones Generales
- Lewis BA, Williams DM, Martinson BC, Dunsiger S, Marcus BH. Healthy for life: a randomized trial examining physical activity outcomes and psychosocial mediators. Ann Behav Med. 2013 Apr;45(2):203-12. doi: 10.1007/s12160-012-9439-5.
- Lewis BA, Williams DM, Frayeh A, Marcus BH. Self-efficacy versus perceived enjoyment as predictors of physical activity behaviour. Psychol Health. 2016;31(4):456-69. doi: 10.1080/08870446.2015.1111372. Epub 2015 Nov 18.
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 253
- R01HL072947 (Subvención/contrato del NIH de EE. UU.)
- A04-102 (Otro identificador: HealthPartners Institute)
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .
Ensayos clínicos sobre Enfermedades cardíacas
-
Region SkaneInscripción por invitaciónInsuficiencia cardíaca New York Heart Association (NYHA) Clase II | Insuficiencia cardíaca New York Heart Association (NYHA) Clase IIISuecia
-
Medical University of BialystokInstitute of Cardiology, Warsaw, Poland; Medical University of Lodz; Poznan University... y otros colaboradoresAún no reclutandoInsuficiencia Cardíaca Sistólica | Insuficiencia cardíaca con fracción de eyección reducida | Insuficiencia cardíaca Clase IV de la New York Heart Association | Insuficiencia cardíaca Clase III de la New York Heart AssociationPolonia
-
Novartis PharmaceuticalsTerminadoPacientes que completaron con éxito el período de tratamiento de 12 meses del estudio principal (receptores de Novo Heart) que estaban interesados en recibir tratamiento con EC-MPS
-
University of WashingtonAmerican Heart AssociationTerminadoInsuficiencia cardíaca, congestiva | Alteración mitocondrial | Insuficiencia cardíaca Clase IV de la New York Heart AssociationEstados Unidos
Ensayos clínicos sobre Physical activity
-
University Hospital, ToulouseActivo, no reclutando
-
St. Joseph's Healthcare HamiltonHamilton Academic Health Sciences OrganizationTerminadoCáncer de pulmón de células no pequeñasCanadá
-
Istituto Auxologico ItalianoReclutamientoComportamiento de saludItalia