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

Table 6

Percentage of agreement between the SENS motion system data recorded at the two study visits while performing the standardized protocol with mean, median, standard deviation (SD), and range.

Number	Sedentary	Standing	Walking	Other activities	Total	Active	Sedentary	Total
(1)	96%	83%	45%	50%	57%	99%	96%	99%
(2)	96%	83%	73%	93%	81%	98%	96%	97%
(3)	100%	100%	75%	-	83%	99%	100%	99%
(4)	96%	92%	71%	75%	78%	99%	96%	99%
(5)	63%	100%	77%	67%	75%	96%	63%	86%
(6)	96%	92%	90%	100%	92%	100%	96%	99%
(7)	100%	83%	73%	89%	81%	99%	100%	99%
(8)	96%	92%	51%	100%	68%	100%	96%	99%
(9)	100%	100%	91%	100%	95%	100%	100%	100%
(10)	96%	83%	82%	14%	81%	95%	96%	95%
(11)	100%	100%	91%	83%	94%	98%	100%	99%
(12)	83%	100%	89%	100%	90%	100%	83%	97%
(13)	100%	100%	88%	100%	92%	100%	100%	100%
(14)	100%	83%	70%	100%	78%	98%	100%	99%
(15)	100%	92%	50%	80%	64%	97%	100%	98%
(16)	96%	100%	67%	100%	78%	100%	96%	99%
(17)	96%	100%	91%	100%	93%	100%	96%	99%
(18)	96%	92%	94%	88%	94%	100%	96%	99%
(19)	100%	83%	90%	88%	91%	98%	100%	98%
(20)	100%	83%	58%	100%	70%	100%	100%	100%
(21)	96%	100%	78%	100%	84%	100%	96%	99%
(22)	100%	100%	73%	100%	84%	100%	100%	100%
(23)	100%	92%	87%	100%	90%	99%	100%	99%
(24)	100%	100%	88%	88%	91%	99%	100%	99%
Median	98%	92%	77%	100%	84%	99%	98%	99%
Range	63–100%	83–100%	45–94%	14–100%	57–95%	95–100%	63–100%	86–100%
Mean	96%	93%	77%	88%	83%	99%	96%	98%
SD	8%	7%	14%	21%	10%	1%	8%	3%

-: missing value.