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Structuring Financial Incentives to Increase Physical Activity

2 oktober 2019 uppdaterad av: Prof Ho Teck Hua, National University of Singapore

The purpose of this study is to evaluate the effectiveness of different structures of long term financial incentives on increasing physical activity performed by subjects, as measured by the number of steps walked per day.

Investigators are interested in studying whether physical activity increases during an intervention period (with incentives) and a post-intervention period (with no incentives).

Studieöversikt

Status

Avslutad

Betingelser

Intervention / Behandling

Detaljerad beskrivning

The proposed study is a field experiment. Adults within the ages of 25 and 60 years of age, and with a body mass index of 22 or higher will be eligible to participate.

The study will consist of (1) a two-week baseline period, (2) a 36-week intervention period, and (3) a 12-week follow-up period.

At the beginning of the study, subjects will be given a wearable fitness device and their daily step count will be monitored for two weeks; this is the baseline period. After the two-week baseline period, the subjects will be randomly assigned to one of the five different conditions (Control, Gain, Loss, Gain Streak, or Loss Streak) and will be given the goal to increase their baseline step counts by 2,500 steps.

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HYPOTHESES -- Investigators expect the following:

  1. Loss Aversion: Subjects in the Loss treatment will achieve the goal on a greater number of days than subjects in the Gain treatment.
  2. Streak: Subjects in the Gain treatment will achieve the goal on a greater number of days than subjects in the Gain Streak treatment.
  3. Loss Streak: Subjects in the Loss treatment will achieve the goal on a greater number of days than subjects in the Loss Streak treatment. Whether subjects in the Loss Streak treatment will perform better or worse than subjects in the other two treatments will be investigated.

CONTRIBUTION -- Prior research has not examined the effect of a long term financial incentive (36 weeks) on individual behavior in achieving a goal. In this study, the investigators also examine two additional financial incentive structures: Gain Streak and Loss Streak. If the hypotheses are correct, the results have important implications for designing financial incentives to encourage good behavior and to encourage good habit formation across domains.

Studietyp

Interventionell

Inskrivning (Faktisk)

620

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

  • Singapore
      • Singapore, Singapore, 119077
        • National University of Singapore

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

25 år till 60 år (Vuxen)

Tar emot friska volontärer

Ja

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  • Singapore citizens and permanent residents
  • Adults with BMI greater than 22
  • Ownership of a smartphone or tablet
  • Only one member per household can participate in the study

Exclusion Criteria:

  • Women who are pregnant or breast feeding, or who intend to become pregnant over next year
  • Subjects who are already participating in another physical activity program or study
  • Subjects who are unable to participate for a total of 1 year
  • Subjects who are unwilling to wear the fitness device
  • Subjects who already walk more than 10,000 steps a day (self-reported per-day-average over seven days)

  • Subjects who have any of the following health conditions:

    • high blood pressure
    • high cholesterol
    • heart attack
    • heart failure
    • stroke
    • chronic obstructive pulmonary disease
    • kidney disease
    • diabetes (type 2)

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Övrig
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Dubbel

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Inget ingripande: Control
Subjects in the Control treatment are not given any financial incentive to achieve the goal.
Experimentell: Gain Treatment
Financial Incentive: Each subject in the Gain treatment will earn a certain amount of money for each day the goal is achieved. The money earned will be added to a virtual account that the subject has, and will be paid to the subject at the end of the intervention period.
Beteende: Financial Incentive
Giving different structures of long term (36 weeks) financial incentives to increase physical activity
Experimentell: Loss Treatment
Financial Incentive: Each subject in the Loss treatment will be given a certain amount of money in his/her virtual account at the beginning of every week. For each day that the subject does not achieve the goal, a small portion of that money will be deducted from the virtual account. The balance that is left in the virtual account will be paid to the subject at the end of the intervention period.
Beteende: Financial Incentive
Giving different structures of long term (36 weeks) financial incentives to increase physical activity
Experimentell: Gain Streak Treatment
Financial Incentive: Each subject in the Gain Streak treatment get an increasing amount of money added to his/her virtual account for every continuous day that they achieve the goal. The maximum cumulative amount per week is same as in the other treatment conditions. The payment is reset at the beginning of each week, or if the subject misses the goal on any day. The money in the virtual account will be paid to the subject at the end of the intervention period.
Beteende: Financial Incentive
Giving different structures of long term (36 weeks) financial incentives to increase physical activity
Experimentell: Loss Streak Treatment
Financial Incentive: Each subject in the Loss Streak treatment will be given a certain amount of money in his/her virtual account at the beginning of every week. An increasing amount of money will be deducted for each consecutive day the subject does not achieve the goal. The payment is reset at the beginning of each week, or when the subject achieves the goal (i.e., deductions are reset when the streak is broken). The balance that is left in the virtual account will be paid to the subject at the end of the intervention period.
Beteende: Financial Incentive
Giving different structures of long term (36 weeks) financial incentives to increase physical activity

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Step count goal -- Intervention
Tidsram: 36-week intervention period following the baseline period.
Proportion of participant-days on which the goal (baseline +2,500 steps) was achieved during the intervention period.
36-week intervention period following the baseline period.
Change in mean daily steps -- Intervention
Tidsram: 36-week intervention period following the baseline period.
Change in mean daily steps during the intervention period.
36-week intervention period following the baseline period.

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Step count goal -- Post-intervention
Tidsram: 12-week post-intervention period.
Proportion of participant-days on which the goal (baseline +2,500 steps) was achieved during the post-intervention period.
12-week post-intervention period.
Change in mean daily steps -- Post-intervention
Tidsram: 12-week post-intervention period.
Change in mean daily steps during the post-intervention period.
12-week post-intervention period.
Sleep Pattern -- Intervention
Tidsram: 36-week intervention period following the baseline period.
Changes in sleep pattern (deep sleep, hours of continuous sleep) during the intervention period.
36-week intervention period following the baseline period.
Sleep Pattern -- Post-intervention
Tidsram: 12-week post-intervention period.
Changes in sleep pattern (deep sleep, hours of continuous sleep) during the post-intervention period.
12-week post-intervention period.
Weight (in kilograms) Loss -- Intervention
Tidsram: 36-week intervention period following the baseline period.
Drop in weight from baseline to the end of the intervention period.
36-week intervention period following the baseline period.
Weight (in kilograms) Loss -- Post-intervention
Tidsram: 48-week period following the baseline period.
Drop in weight from baseline to the end of the post-intervention period.
48-week period following the baseline period.
Change in Waist Measurement (in inches) -- Intervention
Tidsram: 36-week intervention period following the baseline period
Change in waist measurements from baseline to the end of the intervention period.
36-week intervention period following the baseline period
Change in Waist Measurement (in inches) -- Post-intervention
Tidsram: 48-week period following the baseline period.
Change in waist measurements from baseline to the end of the post-intervention period.
48-week period following the baseline period.

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

National University of Singapore

Samarbetspartners

University of Pennsylvania

Utredare

  • Huvudutredare: Teck H Ho, PhD, National University of Singapore

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

9 oktober 2017

Primärt slutförande (Faktisk)

17 januari 2019

Avslutad studie (Faktisk)

30 januari 2019

Studieregistreringsdatum

Först inskickad

26 september 2017

Först inskickad som uppfyllde QC-kriterierna

3 oktober 2017

Första postat (Faktisk)

9 oktober 2017

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

4 oktober 2019

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

2 oktober 2019

Senast verifierad

1 oktober 2019

Mer information

Termer relaterade till denna studie

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • SG-STEP

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

JA

IPD-planbeskrivning

Investigators will not be storing or sharing any personal identifiers. All individual level data will be anonymized, and only anonymized data will be shared with other researchers, upon request.

Tidsram för IPD-delning

After completion of all analysis. It will be made available in the supporting documentation.

Kriterier för IPD Sharing Access

It will be made available in the supporting documentation.

IPD-delning som stöder informationstyp

  • STUDY_PROTOCOL
  • ICF
  • ANALYTIC_CODE

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Nej

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .

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