Advances in the application of wearable sensors for gait analysis after total knee arthroplasty: a systematic review

Table 1 Summary of the samples and protocols of the 25 articles included

Authors	Sensors			Study Design			Gait variables
Authors	Total no of sensors	Frequency (Hz)	Body location	Walking distance (Meters)	6 MWT	Experimental environment	Spatiotemporal parameters	Range of motion of the knee	Acceleration	Step time asymmetry	Coefficient of variation	Kinetic parameters
Amemiya [23]	1	/	B	10		I	√				√
Boekesteijn [29]	4	128	B/F	6		I	√	√	√	√	√
Bolam [10]	2	1149	F	/	√	O		√				√
Bolink [4]	1	100	B	20		I	√			√	√
Brandes [11]	3	32	B/T	/		O	√
Calliess [22]	3	100	B/T/L	100		I	√	√			√
Çankaya [12]	2	1149	F	25		I	√			√
Chapman [33]	2	128	T/L	/		O/I	√	√
Christiansen [13]	2	1000	L	/	√	I			√
Daugaard [14]	1	100	T	/		O	√
Emmerzaal [30]	1	60	B	10		I	√		√
Fransen [27]	1	100	B	100		I	√			√	√
Fransen [32]	1	100	B	/		O	√		√
Hiyama [16]	1	500	L	16		I	√	√			√
Hiyama [15]	2	500	B/F	16		I	√		√
Jolles [25]	5	/	B/T/L	30		I	√	√
Kluge [17]	2	102	F	40		I	√
Lee [28]	1	/	B	8	√	I	√	√	√
Lo [18]	2	128	B/H	20		I	√		√	√
Rahman [31]	2	/	T/L	20		I	√	√
Senden [19]	1	100	B	20		I	√			√
Storey [20]	1	100	B	10	√	O/I	√
Tomite [24]	2	/	B/F	50		I	√	√
Tsuji [26]	1	/	B	10		I			√
Zhang [21]	4	/	B/T/F	40		I	√

B Torso, F Foot, I Indoors, L Lower leg, O Outdoors, T Thigh, 6-MWT 6-min walk test

ISSN: 2524-7948