The first four weeks predict who is still training a year later
Only 10% of beginners in a fitness app still trained weekly after 12 months. Consistency in the first 28 days was the strongest predictor of sticking with it.
What they studied
- Design
- Observational cohort
- People
- 389,481 adult users of a digital fitness app, mean age 35
- Follow-up
- 12 months from the first recorded workout
- Adherence
- At least one workout a week, with up to six missed weeks allowed
What they found
- 10.1% of beginners were still adherent at 12 months; the median dropout came at week 19.
- Adherence was higher in users over 50 (13.3% vs 8.4% at 18–40), in men (11.4% vs 7.9%) and in intermediate (18.3%) and advanced users (25.8%).
- Training consistency in the first 28 days was the strongest predictor of staying with it.
- Using more types of equipment and putting more weight on resistance training were linked to lower dropout.
How strong is the evidence
Cohort · n≈389k
What this design cannot tell us:
- Observational: consistent starters may differ in motivation, not just habits.
- Only workouts logged in the app were counted; people may train elsewhere.
What it means for your training
- Make month one about showing up regularly, not about perfect sessions.
- Fix your training days in the calendar and include resistance work from the start.
Our summary of the published abstract. Read the original paper for full details.