Fitbit wear during an activity trial
Survivors wore Fitbits most days and roughly doubled ActiGraph MVPA over 12 weeks in the intervention arm.
Source
Patterns of Fitbit Use and Activity Levels Throughout a Physical Activity Intervention: Exploratory Analysis from a Randomized Controlled Trial
What they did
Exploratory analysis of Fitbit use among women in a 12-week activity intervention, relating wear adherence to ActiGraph MVPA.
What they found
Among 42 survivors, mean wear was 6.2/7 days weekly. Intervention MVPA rose from 93.8 to 195.3 min/week.
The limits
What it doesn't show
Small exploratory subsample; describes use patterns rather than proving Fitbit alone causes gains.
Key terms
- Fitbit
- Consumer wearable tracker.
- MVPA
- Moderate-to-vigorous physical activity.
- ActiGraph
- Research accelerometer.
- Wear adherence
- Days with valid wear.
- Breast cancer survivor
- Study population.
- Exploratory analysis
- Secondary pattern analysis.
Flashcards
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N:
Common questions
N?
42.
Wear?
6.2/7 days.
MVPA change?
93.8→195.3 min/week.
Valid days?
Mean 88%.
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