Comparison of Affect-based, Self-selected, and Traditional Exercise Prescriptions
6 de julio de 2018 actualizado por: Zachary, Duke University
This study will evaluate adherence to four types of walking programs.
Participants will be randomized to walking programs that included either (1) affect-based exercise intensity, (2) self-selected (or "choice-based") exercise intensity, (3) heart-rate based exercise intensity, or (4) heart-rate guided exercise intensity with the emphasis on affective benefits.
Descripción general del estudio
Estado
Terminado
Condiciones
Descripción detallada
The purpose of this study is to determine if an "affect-based" or "choice-based" exercise prescription is more effective for behavior change than a traditional, "moderate-intensity" exercise prescription. Prior research suggests that "choice-based" or "self-selected" exercise intensity is more pleasant and adhered to than "moderate-intensity exercise" (Williams et al., 2014). Similarly, affect-based exercise prescriptions (i.e., an exercise prescription where intensity is regulated based on the pleasure-displeasure one feels while exercising) appear to have merit (Baldwin, Kangas, Denman, Smits, Yamada, & Otto, 2016).
However, choice-based and affect-based exercise prescriptions have not been compared to each other. Further, it is unknown if it is the intensity regulation that matters (e.g., "choose an intensity that feels good" or the focus on affect (e.g., "focus on feeling good). Third, prior research has not objectively measured physical activity behavior.
Tipo de estudio
Intervencionista
Inscripción (Actual)
159
Fase
- No aplica
Contactos y Ubicaciones
Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.
Ubicaciones de estudio
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North Carolina
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Durham, North Carolina, Estados Unidos, 27701
- Duke University IBRC Lab
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Criterios de participación
Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.
Criterio de elegibilidad
Edades elegibles para estudiar
18 años y mayores (Adulto, Adulto Mayor)
Acepta Voluntarios Saludables
Sí
Géneros elegibles para el estudio
Todos
Descripción
Inclusion Criteria:
- Must be fluent in English
- Must be able to walk
- Exercise less than 90 minutes per week at a moderate-intensity
- Must be able to attend laboratory visits
- Must have mobile internet accent and a personal smartphone (iPhone iOS 9+ or Android OS 4.3+)
- Can safely exercise at an intensity that is at least "moderate"
Exclusion Criteria:
- People who are recommended to have medical clearance prior to exercising, according to the American College of Sports Medicine's preparticipation screening criteria, will be excluded
Plan de estudios
Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.
¿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 |
|---|---|
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Experimental: Choice-No Affect
These participants self-select (i.e., choose) their exercise intensity with the goal of walking 30-60 minutes on most days of the week.
For safety reasons, they are instructed not to exceed 59% of their heart rate reserve.
This is choice-based exercise intensity with no focus on positive affect.
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Participants are instructed to choose whichever intensity they want, rather than regulate their intensity based on heart rate.
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Experimental: Choice-Affect
These participants self-select their exercise intensity with the goal of walking 30-60 minutes on most days of the week.
They're instructed to choose the intensity that makes them feel the best.
For safety reasons, they are instructed not to exceed 59% of their heart rate reserve.
This is choice-based exercise intensity with a focus on positive affect.
|
Participants are instructed to choose whichever intensity they want, rather than regulate their intensity based on heart rate.
Participants are instructed to focus on feeling good while exercising.
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Experimental: No Choice-Affect
These participants regulate their exercise intensity using their heart rate, with the goal of walking 30-60 minutes on most days of the week.
The intensity is "moderate" according to the American College of Sports Medicine (40-59% of their heart rate reserve).
Meanwhile, these participants are instructed to focus on the "good feelings" that come with exercise.
this is heart rate-based exercise intensity with a focus on positive affect.
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Participants are instructed to focus on feeling good while exercising.
Participants are instructed to regulate their exercise intensity based on their heart rate.
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Comparador activo: No Choice-No Affect
These participants regulate their exercise intensity using their heart rate, with the goal of walking 30-60 minutes on most days of the week.
The intensity is "moderate" according to the American College of Sports Medicine (40-59% of their heart rate reserve).
This is heart rate-based exercise intensity with no focus on positive affect.
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Participants are instructed to regulate their exercise intensity based on their heart rate.
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Change in objectively measured exercise behavior
Periodo de tiempo: This will be measured throughout the baseline assessment period (2 weeks) and intervention period (4 weeks)
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Minutes per week of objectively measured exercise behavior.
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This will be measured throughout the baseline assessment period (2 weeks) and intervention period (4 weeks)
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Change in self-reported exercise behavior
Periodo de tiempo: This will be measured throughout the baseline assessment period (2 weeks) and intervention period (4 weeks)
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Minutes per week of self-reported exercise behavior that is reported using exercise log.
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This will be measured throughout the baseline assessment period (2 weeks) and intervention period (4 weeks)
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Change in affective attitudes
Periodo de tiempo: Measured during baseline assessment period and at the end of the intervention
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Affective attitudes toward exercise
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Measured during baseline assessment period and at the end of the intervention
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Self-reported intrinsic motivation (questionnaires)
Periodo de tiempo: Two weeks into study intervention
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Intrinsic motivation for exercise program
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Two weeks into study intervention
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Enjoyment
Periodo de tiempo: Measured at the end of the intervention period (4 weeks)
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Enjoyment of exercise program.
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Measured at the end of the intervention period (4 weeks)
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Change in weight
Periodo de tiempo: Measured at the beginning and end of the study (6 weeks).
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Body weight
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Measured at the beginning and end of the study (6 weeks).
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Change in resting heart rate
Periodo de tiempo: Measured at the beginning and end of the study (6 weeks).
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Resting heart rate
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Measured at the beginning and end of the study (6 weeks).
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Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Publicaciones y enlaces útiles
La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.
Publicaciones Generales
- Baldwin AS, Kangas JL, Denman DC, Smits JA, Yamada T, Otto MW. Cardiorespiratory fitness moderates the effect of an affect-guided physical activity prescription: a pilot randomized controlled trial. Cogn Behav Ther. 2016 Nov;45(6):445-57. doi: 10.1080/16506073.2016.1194454. Epub 2016 Jun 16.
- Williams DM, Dunsiger S, Miranda R Jr, Gwaltney CJ, Emerson JA, Monti PM, Parisi AF. Recommending self-paced exercise among overweight and obese adults: a randomized pilot study. Ann Behav Med. 2015 Apr;49(2):280-5. doi: 10.1007/s12160-014-9642-7.
Fechas de registro del estudio
Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.
Fechas importantes del estudio
Inicio del estudio (Actual)
21 de febrero de 2017
Finalización primaria (Actual)
29 de marzo de 2018
Finalización del estudio (Actual)
29 de marzo de 2018
Fechas de registro del estudio
Enviado por primera vez
2 de febrero de 2017
Primero enviado que cumplió con los criterios de control de calidad
6 de febrero de 2017
Publicado por primera vez (Estimar)
9 de febrero de 2017
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
9 de julio de 2018
Última actualización enviada que cumplió con los criterios de control de calidad
6 de julio de 2018
Última verificación
1 de julio de 2018
Más información
Términos relacionados con este estudio
Palabras clave
Otros números de identificación del estudio
- D0991
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
SÍ
Descripción del plan IPD
The investigators retain ownership of all study data, but are willing to share anonymized data for transparency purposes at the conclusion of the study.
Data may be requested by contacting the Principal Investigator.
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
No
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
No
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