AI Article Synopsis

  • The study aimed to see if giving financial incentives could increase daily walking steps among adults in Japan.
  • Conducted as a randomized controlled trial, participants were divided into an intervention group (who earned shopping points for walking more) and a control group, with their walking tracked over nine weeks.
  • Results showed the intervention group significantly increased daily steps during the incentive period but saw no lasting effect once the incentives were removed.

Article Abstract

Objective: The aim of this study was to investigate the effect of a financial incentive on the number of daily walking steps among community-dwelling adults in Japan.

Study Design: Two-arm, parallel-group randomised controlled trial.

Setting/participants: We recruited physically inactive community-dwelling adults from Sendai city, Japan. Eligible participants were randomly allocated to an intervention or a wait list control group. Pedometers were used to assess the mean number of daily steps in three periods: baseline (weeks 1-3), intervention (weeks 4-6) and follow-up (weeks 7-9).

Intervention: The intervention group was offered a financial incentive (shopping points) to meet the target number of increased daily steps in the intervention period.

Main Outcome Measures: The primary outcome was an increase in the mean number of daily steps in the intervention and follow-up periods compared with baseline.

Results: Seventy-two participants (69.4% women; mean age, 61.2±16.2 years; mean number of daily steps at baseline, 6364±2804) were randomised to the intervention (n=36) and control groups (n=36). During the intervention period, the increase in mean daily steps was significantly higher in the intervention group (1650, 95% CI=1182 to 2119) than in the control group (514, 95% CI=136 to 891; p<0.001). However, the difference between groups was not significant at follow-up after the incentives were removed (p=0.311). In addition, compared with controls, a significantly higher proportion of participants in the intervention group showed an increase in mean daily steps of ≥1000 (69.4% vs 30.6%, respectively; OR=5.17, 95% CI=1.89 to 14.08). There were no adverse effects from the intervention.

Conclusions: The present results suggest that financial incentives are effective in promoting short-term increases in physical activity.

Trial Registration Number: UMIN000033276.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7643498PMC
http://dx.doi.org/10.1136/bmjopen-2020-037303DOI Listing

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