The Feasibility of Reducing and Measuring Sedentary Time among Overweight, Non-Exercising Office Workers

Table 2

Monitor and questionnaire sedentary time, sensitivity, and specificity using the AP as the criterion measure.

		Baseline period	Intervention period	Sensitivity	Specificity
		mean ± SD	mean ± SD	(95% CI)	(95% CI)
Weekday	AP (% Sedentary)	68.8±8.5	65.1±6.5^∗	−−−	−−−
	AG100 (% Sedentary)	66.4±10.2	62.9±10.5	80(53,100)^†	67(39,94)
	AG150 (% Sedentary)	70.5±9.4	67.1.4±10.1	70(43,97)	67(39,94)
	T-SQ (hours/day)	9.3±3.3	8.2±4.4	80(53,100)^†	33(06,61)
	D-SQ (hours/day)	12.6±2.9	11.6±2.2	70(43,100)^†	33(06,61)
	TV-Q (hours/day)	2.3±1.85	2.5±1.75	20(0,47)	100(73,100)^†
Weekend	AP (% Sedentary)	60.4±15.6	57.3±12.1	−−−	−−−
	AG100 (% Sedentary)	62.7±8.9	64.4±7.3	67(38,95)	71(43,100)^†
	AG150 (% Sedentary)	66.7±9.0	69.0±6.2	57(29,85)	80(52,100)^†
	T-SQ (hours/day)	6.2±3.1	6.0±3.3	57(29,85)	60(32,88)
	D-SQ (hours/day)	12.1±5.0	10.7±3.9	57(29,85)	60(32,88)
	TV-Q (hours/day)	3.4±2.14	3.3±1.60	43(15,71)	100(72,100)^†

Note: AP is activPAL, AG100 is ActiGraph cut-point of 100 counts·min⁻¹, AG150 is ActiGraph 150 cut-point of 150 counts·min⁻¹, T-SQ is total daily sitting questionnaire, D-SQ is domain specific questionnaire, TV-Q is the D-SQ question specifically about TV viewing.
Data included 13 participants with valid data for all measures during both the baseline and intervention period.
AP, AG100, and AG150 are expressed as a percentage (total sedentary time/wear time) to adjust for differences in wear time.
*Indicates statistically significant difference between conditions 𝑃<0.01.
^†Indicates significant sensitivity or specificity (𝑃<0.05).