Physical activity after commitment lotteries

Examining long-term results in a cluster randomized trial

K. van der Swaluw, M.S. Lambooij, J.J.P. Mathijssen, M. Schipper, Marcel Zeelenberg, S. Berkhout, J.J. Polder, H.M. Prast

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Abstract

To overcome self-control difficulties, people can commit to their health goals by voluntarily accepting deadlines with consequences. In a commitment lottery, the winners are drawn from all participants, but can only claim their prize if they also attained their gym-attendance goals. In a 52-week, three-arm trial across six company gyms, we tested if commitment lotteries with behavioral economic underpinnings would promote physical activity among overweight adults. In previous work, we presented an effective 26-week intervention. In the present paper we analyzed maintenance of goal attainment at 52-week follow-up and the development of weight over time. We compared weight and goal attainment (gym attendance ≥ 2 per week) between three arms that—in the intervention period- consisted of (I) weekly short-term lotteries for 13 weeks; (II) the same short-term lotteries in combination with an additional long-term lottery after 26 weeks; and (III) a control arm without lottery-deadlines. After a successful 26-week intervention, goal attainment declined between weeks 27 and 52 in the long-term lottery arm, but remained higher than in the control group. Goal attainment did not differ between the short-term lottery arm and control arm. Weight declined slightly in all arms in the first 13 weeks of the trial and remained stable from there on. Commitment lotteries can support regular gym attendance up to 52 weeks, but more research is needed to achieve higher levels of maintenance and weight loss.
Original languageEnglish
Pages (from-to)483-493
JournalJournal of Behavioral Medicine
Volume41
Issue number4
DOIs
Publication statusPublished - 2018

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Weights and Measures
Maintenance
Self-Control

Keywords

  • BURDEN
  • Behavior change
  • Behavioral economics
  • Commitment devices
  • DESIGN
  • DEVICES
  • DISEASE
  • Deadlines
  • INTENTIONS
  • LIFE
  • OBESITY
  • Physical activity
  • Prevention
  • REGRET
  • RISK
  • WEIGHT-LOSS

Cite this

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title = "Physical activity after commitment lotteries: Examining long-term results in a cluster randomized trial",
abstract = "To overcome self-control difficulties, people can commit to their health goals by voluntarily accepting deadlines with consequences. In a commitment lottery, the winners are drawn from all participants, but can only claim their prize if they also attained their gym-attendance goals. In a 52-week, three-arm trial across six company gyms, we tested if commitment lotteries with behavioral economic underpinnings would promote physical activity among overweight adults. In previous work, we presented an effective 26-week intervention. In the present paper we analyzed maintenance of goal attainment at 52-week follow-up and the development of weight over time. We compared weight and goal attainment (gym attendance ≥ 2 per week) between three arms that—in the intervention period- consisted of (I) weekly short-term lotteries for 13 weeks; (II) the same short-term lotteries in combination with an additional long-term lottery after 26 weeks; and (III) a control arm without lottery-deadlines. After a successful 26-week intervention, goal attainment declined between weeks 27 and 52 in the long-term lottery arm, but remained higher than in the control group. Goal attainment did not differ between the short-term lottery arm and control arm. Weight declined slightly in all arms in the first 13 weeks of the trial and remained stable from there on. Commitment lotteries can support regular gym attendance up to 52 weeks, but more research is needed to achieve higher levels of maintenance and weight loss.",
keywords = "BURDEN, Behavior change, Behavioral economics, Commitment devices, DESIGN, DEVICES, DISEASE, Deadlines, INTENTIONS, LIFE, OBESITY, Physical activity, Prevention, REGRET, RISK, WEIGHT-LOSS",
author = "{van der Swaluw}, K. and M.S. Lambooij and J.J.P. Mathijssen and M. Schipper and Marcel Zeelenberg and S. Berkhout and J.J. Polder and H.M. Prast",
year = "2018",
doi = "10.1007/s10865-018-9915-x",
language = "English",
volume = "41",
pages = "483--493",
journal = "Journal of Behavioral Medicine",
issn = "0160-7715",
publisher = "KLUWER ACADEMIC/PLENUM PUBL",
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Physical activity after commitment lotteries : Examining long-term results in a cluster randomized trial. / van der Swaluw, K.; Lambooij, M.S.; Mathijssen, J.J.P.; Schipper, M.; Zeelenberg, Marcel; Berkhout, S.; Polder, J.J.; Prast, H.M.

In: Journal of Behavioral Medicine, Vol. 41, No. 4, 2018, p. 483-493.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Physical activity after commitment lotteries

T2 - Examining long-term results in a cluster randomized trial

AU - van der Swaluw, K.

AU - Lambooij, M.S.

AU - Mathijssen, J.J.P.

AU - Schipper, M.

AU - Zeelenberg, Marcel

AU - Berkhout, S.

AU - Polder, J.J.

AU - Prast, H.M.

PY - 2018

Y1 - 2018

N2 - To overcome self-control difficulties, people can commit to their health goals by voluntarily accepting deadlines with consequences. In a commitment lottery, the winners are drawn from all participants, but can only claim their prize if they also attained their gym-attendance goals. In a 52-week, three-arm trial across six company gyms, we tested if commitment lotteries with behavioral economic underpinnings would promote physical activity among overweight adults. In previous work, we presented an effective 26-week intervention. In the present paper we analyzed maintenance of goal attainment at 52-week follow-up and the development of weight over time. We compared weight and goal attainment (gym attendance ≥ 2 per week) between three arms that—in the intervention period- consisted of (I) weekly short-term lotteries for 13 weeks; (II) the same short-term lotteries in combination with an additional long-term lottery after 26 weeks; and (III) a control arm without lottery-deadlines. After a successful 26-week intervention, goal attainment declined between weeks 27 and 52 in the long-term lottery arm, but remained higher than in the control group. Goal attainment did not differ between the short-term lottery arm and control arm. Weight declined slightly in all arms in the first 13 weeks of the trial and remained stable from there on. Commitment lotteries can support regular gym attendance up to 52 weeks, but more research is needed to achieve higher levels of maintenance and weight loss.

AB - To overcome self-control difficulties, people can commit to their health goals by voluntarily accepting deadlines with consequences. In a commitment lottery, the winners are drawn from all participants, but can only claim their prize if they also attained their gym-attendance goals. In a 52-week, three-arm trial across six company gyms, we tested if commitment lotteries with behavioral economic underpinnings would promote physical activity among overweight adults. In previous work, we presented an effective 26-week intervention. In the present paper we analyzed maintenance of goal attainment at 52-week follow-up and the development of weight over time. We compared weight and goal attainment (gym attendance ≥ 2 per week) between three arms that—in the intervention period- consisted of (I) weekly short-term lotteries for 13 weeks; (II) the same short-term lotteries in combination with an additional long-term lottery after 26 weeks; and (III) a control arm without lottery-deadlines. After a successful 26-week intervention, goal attainment declined between weeks 27 and 52 in the long-term lottery arm, but remained higher than in the control group. Goal attainment did not differ between the short-term lottery arm and control arm. Weight declined slightly in all arms in the first 13 weeks of the trial and remained stable from there on. Commitment lotteries can support regular gym attendance up to 52 weeks, but more research is needed to achieve higher levels of maintenance and weight loss.

KW - BURDEN

KW - Behavior change

KW - Behavioral economics

KW - Commitment devices

KW - DESIGN

KW - DEVICES

KW - DISEASE

KW - Deadlines

KW - INTENTIONS

KW - LIFE

KW - OBESITY

KW - Physical activity

KW - Prevention

KW - REGRET

KW - RISK

KW - WEIGHT-LOSS

U2 - 10.1007/s10865-018-9915-x

DO - 10.1007/s10865-018-9915-x

M3 - Article

VL - 41

SP - 483

EP - 493

JO - Journal of Behavioral Medicine

JF - Journal of Behavioral Medicine

SN - 0160-7715

IS - 4

ER -