Table 5

Technology summary for physical activity studies

	Technology				Sampling rate				Body location							Sensor metric
	1-axis accelerometer(s)	3-axis accelerometer(s)	Not reported/unclear	Total no of sensors	10 Hz	30–32 Hz	100 Hz	Not reported/unclear	Sternum	Arm/wrist	Hip/waist	Thigh	Anterior tibia/lower leg	Foot/ankle	Not reported	Activity intensity/time	Active/sedentary time	Counts/METS/energy	Steps/gait cycles	Sit-to-stand transfers	Walking bouts
Agarwal et al 45	✓			1				✓			✓					✓
Bolszak et al 46		✓		1			✓				✓					✓		✓
Brandes et al 58	✓			4		✓					✓	✓				✓			✓
Christiansen et al 47		✓		1				✓			✓					✓			✓
Cooper et al 39	✓			1	✓							✓							✓
Daugaard et al 35		✓		1			✓					✓							✓	✓	✓
de Groot et al 41			✓	3				✓	✓			✓					✓			✓
Fenten et al 48			✓	1				✓				✓					✓
Frimpong et al 49		✓		1		✓					✓					✓	✓	✓	✓
Harding et al 42	✓			1				✓			✓						✓	✓
Hayashi et al 43	✓			1				✓			✓								✓
Hayes et al 59	✓			5				✓	✓				✓	✓			✓	✓
Kahn and Schwarzkopf36	✓			1				✓			✓					✓		✓
Kahn and Schwarzkopf37	✓			1				✓			✓					✓		✓
Losina et al 50		✓		1				✓			✓					✓			✓
Luna et al 51			✓	1				✓		✓								✓
Lützner et al 40	✓			1				✓					✓			✓	✓		✓
Lützner et al 52	✓			1				✓					✓			✓	✓		✓
Pellegrini et al 53		✓		1				✓			✓					✓	✓	✓
Schotanus et al 54		✓		1				✓					✓				✓	✓	✓	✓	✓
Taniguchi et al 55		✓		1				✓							✓				✓
Tsuji et al 56		✓		1	✓						✓							✓
Twiggs et al 57		✓		1				✓		✓									✓
Vissers et al 60	✓			4				✓	✓			✓					✓
Vissers et al 44	✓			4				✓	✓			✓					✓
Webber et al 38		✓		1			✓				✓					✓	✓		✓