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Compute each day's target from the person's own recent activity, so it rises and falls with them instead of sitting at 10,000 steps. Five controlled trials favour it — mostly by slowing the decline, not by a bigger start.
+960 to +1,130 stepsDaily steps, between-arm differences in three small trials against a fixed 10,000-step goal or no treatment (Cal Fitness, Walkadoo, Adams 2013). In Cal Fitness both arms fell; adaptive fell less.
Built from published experiments and company reports across several products. Nobody has checked the screens on a dated day, so read each number with the caveat printed beside it.
Compute each day's target from the person's own recent activity, so it rises and falls with them instead of sitting at 10,000 steps. Five controlled trials favour it — mostly by slowing the decline, not by a bigger start.
A fixed goal like 10,000 steps is too high for some people and too easy for others, and can discourage people so that activity stays flat or falls (Zhou et al.; Adams et al.).
This play is not tied to a full playbook. Use it for this decision alone.
Adaptive goals held steps up better than a fixed 10,000.
STRONGWhat it does not show Small sample, 83% women, highly educated, iPhone owners only. The run-in included goals, so no natural baseline exists and only the relative benefit can be estimated. Only 17 of 34 adaptive and 16 of 30 control participants used the app without a 7-day gap.
Evaluating Machine Learning-Based Automated Personalized Daily Step Goals Delivered Through a Mobile Phone App: Randomized Controlled Trial M et al. · 2018
In WalkIT, adaptive goals slowed the decline and ended ahead.
STRONGWhat it does not show The adaptive advantage appears only in the slope and the end-of-study prediction, not in the average change across the phase. 77% women; four months.
Adaptive goal setting and financial incentives: a 2 x 2 factorial randomized controlled trial to increase adults' physical activity MA et al. · 2017
Over a year, adaptive activity-minute goals raised the odds of any activity more.
STRONGUse the play for this decision alone, or combine it with an existing product strategy after checking for conflicts.
Reading an early result and abandoning the rule before the curves diverge.
Users rewarded per goal met could pace themselves to easier goals; WalkIT looked for this and found none.
Missing days and unsynced devices each need a rule, or the goal jumps.
Presenting research-setting step gains as health outcomes of an app.
Plus everything above, as plain text for your coding agent, with a short instruction on top: check the fit, say what the evidence doesn’t support, and adapt it rather than copy it. Paste it and you get an answer, no prompt to write.
Five controlled trials: Cal Fitness, two WalkIT trials, Walkadoo and an adaptive pilot · evidence reviewed 25 September 2026.
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Browse the playbooks ↗What it does not show Accelerometer wear was 69.7% of planned days; participants and investigators were unblinded during the intervention. One US region.
Adaptive Goals and Reinforcement Timing to Increase Physical Activity in Adults: A Factorial Randomized Trial MA et al. · 2022
A workplace walking programme with adaptive goals raised steps against nothing.
SUPPORTINGWhat it does not show The control got nothing, so the result belongs to the whole programme, not to the goal rule. Two authors were employees of MeYou Health and owned stock in its parent, Healthways. Only 4 participants were already active at baseline.
Effectiveness of an Activity Tracker- and Internet-Based Adaptive Walking Program for Adults: A Randomized Controlled Trial J et al. · 2016
A small adaptive-goal package beat a fixed goal package.
SUPPORTINGWhat it does not show The arms differed in goals, feedback and reward schedule; the authors say the package design cannot separate them. Twenty participants; the abstract reports 35% non-white while the discussion describes the sample as mainly non-white.
An adaptive physical activity intervention for overweight adults: a randomized controlled trial MA et al. · 2013