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Comparison of Affect-based, Self-selected, and Traditional Exercise Prescriptions

6. juli 2018 opdateret af: 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.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

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.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

159

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

    • North Carolina
      • Durham, North Carolina, Forenede Stater, 27701
        • Duke University IBRC Lab

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

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

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: 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.
Participants are instructed to choose whichever intensity they want, rather than regulate their intensity based on heart rate.
Eksperimentel: 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.
Eksperimentel: 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.
Participants are instructed to focus on feeling good while exercising.
Participants are instructed to regulate their exercise intensity based on their heart rate.
Aktiv komparator: 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.
Participants are instructed to regulate their exercise intensity based on their heart rate.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in objectively measured exercise behavior
Tidsramme: This will be measured throughout the baseline assessment period (2 weeks) and intervention period (4 weeks)
Minutes per week of objectively measured exercise behavior.
This will be measured throughout the baseline assessment period (2 weeks) and intervention period (4 weeks)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in self-reported exercise behavior
Tidsramme: This will be measured throughout the baseline assessment period (2 weeks) and intervention period (4 weeks)
Minutes per week of self-reported exercise behavior that is reported using exercise log.
This will be measured throughout the baseline assessment period (2 weeks) and intervention period (4 weeks)
Change in affective attitudes
Tidsramme: Measured during baseline assessment period and at the end of the intervention
Affective attitudes toward exercise
Measured during baseline assessment period and at the end of the intervention
Self-reported intrinsic motivation (questionnaires)
Tidsramme: Two weeks into study intervention
Intrinsic motivation for exercise program
Two weeks into study intervention
Enjoyment
Tidsramme: Measured at the end of the intervention period (4 weeks)
Enjoyment of exercise program.
Measured at the end of the intervention period (4 weeks)
Change in weight
Tidsramme: Measured at the beginning and end of the study (6 weeks).
Body weight
Measured at the beginning and end of the study (6 weeks).
Change in resting heart rate
Tidsramme: Measured at the beginning and end of the study (6 weeks).
Resting heart rate
Measured at the beginning and end of the study (6 weeks).

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

21. februar 2017

Primær færdiggørelse (Faktiske)

29. marts 2018

Studieafslutning (Faktiske)

29. marts 2018

Datoer for studieregistrering

Først indsendt

2. februar 2017

Først indsendt, der opfyldte QC-kriterier

6. februar 2017

Først opslået (Skøn)

9. februar 2017

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

9. juli 2018

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

6. juli 2018

Sidst verificeret

1. juli 2018

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • D0991

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

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.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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