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

Table 5

Agreement between the semistandardized protocol, captured via diaries, and the SENS motion system as the percentage of agreement for each participant and for the entire cohort (median and range).

Number	Sedentary	Standing	Walking	Other activities	Total	Active	Sedentary	Total
(1)	95%	76%	85%	0%	87%	87%	95%	87%
(2)	97%	93%	93%	97%	89%	93%	97%	91%
(3)	98%	89%	82%	84%	92%	87%	97%	94%
(4)	85%	76%	27%	2%	75%	64%	85%	81%
(5)	88%	56%	90%	0%	88%	76%	89%	90%
(6)	97%	97%	92%	62%	90%	92%	97%	94%
(7)	100%	91%	52%	0%	97%	96%	100%	99%
(8)	91%	86%	93%	32%	84%	79%	91%	88%
(9)	90%	79%	76%	76%	84%	85%	90%	93%
(10)	79%	43%	60%	13%	77%	60%	79%	83%
(11)	96%	76%	91%	6%	93%	80%	96%	95%
(12)	95%	83%	100%	0%	93%	91%	96%	94%
(13)	93%	81%	79%	86%	88%	84%	93%	91%
(14)	88%	77%	52%	74%	84%	64%	88%	86%
(15)	97%	85%	95%	69%	93%	90%	97%	95%
(16)	97%	90%	80%	7%	84%	90%	97%	92%
(17)	97%	92%	50%	85%	91%	80%	97%	93%
(18)	98%	92%	86%	87%	92%	96%	98%	96%
(19)	97%	78%	55%	13%	88%	93%	97%	96%
(20)	96%	81%	84%	59%	87%	90%	96%	90%
(21)	92%	95%	62%	0%	86%	80%	92%	88%
(22)	99%	100%	70%	36%	94%	98%	99%	97%
(23)	97%	93%	94%	77%	91%	95%	97%	95%
(24)	94%	98%	92%	48%	93%	89%	94%	96%
Median	96%	85%	83%	42%	89%	88%	96%	93%
Range	79–100%	43–100%	27–100%	0–97%	75–97%	60–98%	79–100%	81–99%
Mean	94%	84%	77%	42%	88%	85%	94%	92%
SD	5%	13%	19%	36%	5%	11%	5%	5%