- Global positioning system and physical activity monitoring
- Mostly consumer devices
- Focus on sport
- Combination with classic heart rate belt
- Outcomes
- Speed
- Distance
- Altitude
- Location (context)
- Complex analysis of contextual data
- Importance of up-to-date geographical information systems (GIS)
- Pros
- Promising tool for complementing other PA measures in research
- Relationship between environment and activity
- Where does activity occur?
- Cons
- Accuracy
- Loss of signal
- Quality of GIS