Table 1.
Instrument, raw unit, cost, and environment of tools to measure sedentary behavior at work.
| Instrument | Measure/raw unit | Cost | Environment |
|---|---|---|---|
| Questionnaire | Response quote qualitative | Negligible | Possible at work but take time |
| Video observation | Video qualitative | 50 to 500€ for a camera | May need authorization especially at work |
| Smartphone | All sensors (XYZ g, m/s, position, direction, brightness illuminance lux …) | 300 to 1000€ + costs of applications | Easy to wear and common |
| Accelerometer | g or count (on X,Y,Z axis 3D, position, direction, brightness illuminance lux) | 50 to 400€ | Easy to wear even at work |
| Heart rate monitor | Beat/minute | 50 to 300€ | Easy to wear even at work |
| Holter-ECG | RR interval from ECG | 300 to 2000€ | Easy to wear even at work |
| Gas analyser | O2 CO2 consumption/production (liter, m3…) | 20 to 30000€ | For a short period on few individuals Less comfortable |