Evidence map›Paper›PMID 28356097›Full record

Trial reportBMC public health2017

Adaptive goal setting and financial incentives: a 2 × 2 factorial randomized controlled trial to increase adults' physical activity.

Marc A Adams, Jane C Hurley, Michael Todd, Nishat Bhuiyan, Catherine L Jarrett, Wesley J Tucker, Kevin E Hollingshead, Siddhartha S Angadi

Erratum issued Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC public health, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT02053259 (Walking Intervention Through Texting Study), which is not on this map. Cited by 59 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 6 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT02053259 nacompletednot on this map

Walking Intervention Through Texting Study: A Factorial Trial

TypeinterventionalSponsorArizona State UniversityRan2014 to 2018Enrolled96ConditionsPhysical Activity, Behavior, Overweight, Motor ActivityArmsAdaptive Goals, Reinforcement, Static Goals
3 · Its place in the literature

Who cites it

59 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Enhancing Weight Loss Programs: A Meta-Analysis of Financial Incentives and Behavior Change Techniques.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2026
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  12. Which Components of a Smartphone Walking App Help Users to Reach Personalized Step Goals? Results From an Optimization Trial.Annals of behavioral medicine : a publication of the Society of Behavioral Medicine · 2020
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Marc A AdamsCollege of Health Solutions, Arizona State University, 425 North 5th Street (MC9020), Phoenix, AZ, 85004, USA. marc.adams@asu.edu.
Jane C HurleyCollege of Health Solutions, Arizona State University, 425 North 5th Street (MC9020), Phoenix, AZ, 85004, USA.
Michael ToddCollege of Health Solutions, Arizona State University, 425 North 5th Street (MC9020), Phoenix, AZ, 85004, USA.
Nishat BhuiyanCollege of Health Solutions, Arizona State University, 425 North 5th Street (MC9020), Phoenix, AZ, 85004, USA.
Catherine L JarrettCollege of Health Solutions, Arizona State University, 425 North 5th Street (MC9020), Phoenix, AZ, 85004, USA.
Wesley J TuckerCollege of Health Solutions, Arizona State University, 425 North 5th Street (MC9020), Phoenix, AZ, 85004, USA.
Kevin E HollingsheadCollege of Health Solutions, Arizona State University, 425 North 5th Street (MC9020), Phoenix, AZ, 85004, USA.
Siddhartha S AngadiCollege of Health Solutions, Arizona State University, 425 North 5th Street (MC9020), Phoenix, AZ, 85004, USA.

Funding

WalkIT: Neighborhood walkability and moderation of adaptive walking interventionsR01CA198915 · NCI · ARIZONA STATE UNIVERSITY-TEMPE CAMPUS · PI ADAMS, MARC A · 2015 to 2019
$2.8M
NCI NIH HHS R01 CA198915
6 · The paper itself

Abstract

backgroundEmerging interventions that rely on and harness variability in behavior to adapt to individual performance over time may outperform interventions that prescribe static goals (e.g., 10,000 steps/day). The purpose of this factorial trial was to compare adaptive vs. static goal setting and immediate vs. delayed, non-contingent financial rewards for increasing free-living physical activity (PA).

methodsA 4-month 2 × 2 factorial randomized controlled trial tested main effects for goal setting (adaptive vs. static goals) and rewards (immediate vs. delayed) and interactions between factors to increase steps/day as measured by a Fitbit Zip. Moderate-to-vigorous PA (MVPA) minutes/day was examined as a secondary outcome.

resultsParticipants (N = 96) were mainly female (77%), aged 41 ± 9.5 years, and all were insufficiently active and overweight/obese (mean BMI = 34.1 ± 6.2). Participants across all groups increased by 2389 steps/day on average from baseline to intervention phase (p < .001). Participants receiving static goals showed a stronger increase in steps per day from baseline phase to intervention phase (2630 steps/day) than those receiving adaptive goals (2149 steps/day; difference = 482 steps/day, p = .095). Participants receiving immediate rewards showed stronger improvement (2762 step/day increase) from baseline to intervention phase than those receiving delayed rewards (2016 steps/day increase; difference = 746 steps/day, p = .009). However, the adaptive goals group showed a slower decrease in steps/day from the beginning of the intervention phase to the end of the intervention phase (i.e. less than half the rate) compared to the static goals group (-7.7 steps vs. -18.3 steps each day; difference = 10.7 steps/day, p < .001) resulting in better improvements for the adaptive goals group by study end. Rate of change over the intervention phase did not differ between reward groups. Significant goal phase x goal setting x reward interactions were observed.

conclusionsAdaptive goals outperformed static goals (i.e., 10,000 steps) over a 4-month period. Small immediate rewards outperformed larger, delayed rewards. Adaptive goals with either immediate or delayed rewards should be preferred for promoting PA.

trial registrationClinicalTrials.gov ID: NCT02053259 registered prospectively on January 31, 2014.

Indexed as

ExerciseGoalsMotivationAccelerometryAdolescentAdultFemaleHumansMaleMiddle AgedObesityRewardText MessagingTreatment OutcomeYoung AdultAdaptive interventionsFitbitGoalsmHealthPedometerRewardText messaging

Identifiers

PMID28356097
PMCPMC5372290

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.