Accuracy of Intensity and Inclinometer Output of Three Activity Monitors for Identification of Sedentary Behavior and Light-Intensity Activity

Table 4

Percent time anatomical position was coded correctly (±95% confidence interval) and incorrectly (as lying, sitting, standing, or non-wear) for the GT3X+ Inclinometer for each activity.

GT3X+Incl	Correct code	Coded correct (%)	95% conf. interval	Position coded lying (%)	Position coded sitting (%)	Position coded standing (%)	Position coded; “non-wear” (%)
Lying down	2 = lying	66.7	52.2–81.2	—	13.9	5.1	14.3
Sitting TV	3 = sitting	63.4	50.5–76.4	0.0	—	30.1	6.5
Sitting computer	3 = sitting	66.2	53.3–79.1	0.9	—	23.6	9.3
Standing	1 = standing	60.6	46.3–75.1	0.0	37.5	—	1.9
Walking 1.0 mph	1 = standing	71.8	59.7–83.8	0.0	28.2	—	0.0
Pedaling 7.0 mph	3 = sitting	85.1	69.7–100.4	3.5	—	11.4	0.0
Pedaling 15.0 mph	3 = sitting	74.5	54.4–94.6	0.0	—	19.6	5.9