Effect of a novel two-desk sit-to-stand workplace (ACTIVE OFFICE) on sitting time, performance and physiological parameters: protocol for a randomized control trial

Table 1 Parameters measured within the ACTIVE OFFICE study

Measurement			Location		Data points	Sampling rate
Parameter	Method	Performed by	Laboratory	Office	d^-1 (overall)	s^-1
Physiological
Sitting time	IPAQ-long	questionnaire - interview	x		1 (4)	n.a.^d
Physical activity	IPAQ-long	questionnaire - interview	x		1 (4)	n.a.^d
Mental workload	NASA-TLX	questionnaire	x		1 (4)	n.a.^d
Salivary cortisol	saliva collection	Salivette + cortisol ELISA	x^a		8 (32)	n.a.^d
Heart-rate	ECG	ECG recorder	x^b		n.a.^c	250
Body movements	acceleration	ECG recorder	x^b		n.a.^c	250
Cognitive
Working speed	text editing task	computer software (matlab)	x		5 (20)	>1000
Reaction time	Stroop-test	computer software (matlab)	x		5 (20)	>1000
Attention	d2R-test	test sheet	x		5 (20)	n.a.^d
Office based
Body postures	logging tool	computer software (C#)		x	n.a.^c	>1000
Postural changes	logging tool	computer software (C#)		x	n.a.^c	>1000

^aSeven measurements in the laboratory followed by one measurement at home on the following morning
^bMeasurement starts in the laboratory and ends at home on the following morning
^cData points depending on duration of measurement
^dNon-digital measuring method (pen & paper)

ISSN: 1471-2458