Reliability and Construct Validity of the SENS Motion® Activity Measurement System as a Tool to Detect Sedentary Behaviour in Patients with Knee Osteoarthritis

Table 1

Algorithm for identification of the different body positions or movements.

	Orientation < 0.75	Orientation ≥ 0.75
Acceleration < 0.3	Sedentary	Standing
0.3 < acceleration < 1.3		Walking
1.3 < acceleration	Other activities