A loyalty scheme to encourage physical activity in office workers: a cluster RCT

Tracked Physical Activity Levels Before and After a Change in Incentive Strategy Among UK Adults Using a Rewards App: Retrospective Quasi-Experimental Study

BACKGROUND

Financial incentives delivered via apps appear to be effective in encouraging physical activity. However, the literature on different incentive strategies is limited, and the question remains whether financial incentives offer a cost-effective intervention that could be funded at the population level.

OBJECTIVE

This study aimed to explore patterns of tracked physical activity by users of an incentive-based app before and after a change in incentive strategy. A business decision to alter the incentives in a commercially available app offered a natural experiment to explore GPS-tracked data in a retrospective, quasi-experimental study. The purpose of this exploratory analysis was to inform the design of future controlled trials of incentives delivered via an app to optimize their usability and cost-effectiveness.

METHODS

Weekly minutes of tracked physical activity were explored among a sample of 1666 participants. A Friedman test was used to determine differences in physical activity before and after the change in incentive strategies. Post hoc Wilcoxon tests were used to assess minutes of physical activity in the 2 weeks before and after the change. A secondary analysis explored longitudinal patterns of physical activity by plotting the mean and median minutes of physical activity from 17 weeks before and 13 weeks after the change in incentive strategy. CIs were calculated using bias-corrected bootstraps. Demographics were also explored in this way.

RESULTS

There were significant differences in the weekly minutes of activity before and after the change in incentive strategy (Friedman χ22=42, P<.001). However, a longitudinal view of the data showed a more complex and marked variation in activity over time that undermined the conclusions of the before/after analysis.

CONCLUSIONS

Short-term before-and-after observational studies of app-tracked physical activity may result in misleading conclusions about the effectiveness of incentive strategies. Longitudinal views of the data show that important fluctuations are occurring over time. Future studies of app-tracked physical activity should explore such variations by using longitudinal analyses and accounting for possible moderating variables to better understand what an effective incentive might be, for whom, and at what cost.

Effectiveness of behavioural economics-informed interventions to promote physical activity: A systematic review and meta-analysis

OBJECTIVE

For beneficial health outcomes sufficient and sustained physical activity levels are recommended but difficult to achieve. This systematic review evaluates the effectiveness of behavioural economics (BE)-informed interventions to increase individuals' physical activity level in the long-term.

METHODS

We conducted a systematic literature search using Medline (via PubMed), PsycInfo, and EconLit (both via EBSCOhost) including randomized controlled trials of at least 24 weeks duration that evaluated BE-informed interventions to promote physical activity in adults. Potential BE approaches were commitment devices, social incentives, motivational feedback, goal setting, gamification, and financial incentives. Risk of bias was assessed using the revised Cochrane risk-of-bias tool for (cluster-) randomized trials. A random-effects meta-analysis was conducted to summarize the outcome measure daily step count.

RESULTS

Based on 13 studies with 4347 participants, the BE-informed interventions most often applied were commitment lotteries (n = 8) and social incentives (n = 7). Risk of bias assessment classified five studies as low, six as moderate, and two as high risk of bias. Significant results on study level towards BE-informed interventions were observed for commitment lotteries (n = 3) and gamification (n = 4). Including healthy and diseased individuals in the meta-analysis (n = 10), the increase in daily step count in experimental groups compared to control was statistically significant for the intervention period (standardized mean difference (SMD) = 0.13, 95%-CI: 0.00-0.25, I2 = 59%, p = 0.04) but not for the follow-up (SMD = 0.08, 95%-CI: -0.00-0.17, I2 = 17%, p = 0.06). Excluding high risk of bias studies (n = 2) resulted in statistically significant effects with reduced heterogeneity for both periods.

CONCLUSION

Our review reveals a potential effect of BE-informed interventions to promote physical activity. The small effect underlines the importance to evaluate the behavioural channels which may explain the heterogeneity in individuals' responses to BE strategies.

The economic impact of workplace physical activity interventions in Europe: a systematic review of available evidence

Purpose

There is growing interest in the economic impact of workplace physical activity interventions, but the evidence is still lacking — especially in Europe. Although, some evidence on the return on investment (ROI) is found in literature, the included studies may not be applicable to the Europe situation. Therefore, the objective of this study was to review current evidence on the economic impact of workplace physical activity interventions in European countries.

Design/methodology/approach

A systematic review on the economic impact of worksite health promotion programs aiming at increasing physical activity was conducted. Five electronic databases (MEDLINE (Ovid), MEDLINE (PubMed), EMBASE, NHS-EED and Emerald Insights) were searched for relevant studies published between 2000 and 2020.

Findings

A total of 953 abstracts were screened, and 28 were reviewed, 11 of which met all inclusion criteria. The studies varied substantially in sample size, intervention type, duration and frequency of follow-up measurements, valuation methods and assessed economic outcomes. There is inconclusive evidence for decreasing absenteeism, positive net benefit (NB) and positive ROI. No evidence was found to indicate an effect on self-assessed productivity or job satisfaction.

Originality/value

This study is the first try to take the different working conditions from Europe into consideration. The authors found that working conditions could have some impact on the valuation of absenteeism costs and thereof on the ROI. Further, this study provides insight into how to deploy effective and efficient workplace physical activity interventions, based on a standardized and validated methodology and program scope.

An ORBIT Phase 1: Design study of a citywide employer-based walking challenges in a predominantly Mexican American metropolitan area

Most Mexican-Americans do not meet current physical activity recommendations. This paper uses the ORBIT model of obesity intervention development as a framework to outline the process of establishing three employer-based walking challenges in El Paso, Texas, a predominantly Mexican American community. The walking challenges were planned and implemented through the Border Coalition for Fitness and participating partnering organizations. Over 2000 participants and several employers took part in the walking challenges. Results from this ORBIT Phase 1 design intervention suggest that walking challenges are a feasible approach to increase physical activity in Mexican-Americans.