Table 3.

Confusion matrix for (a) right thigh and (b) lumbar region when squats were classified using a single IMU with DL, and confusion matrix for (c) right thigh and (d) lumbar region when squats were classified using a single IMU with CML. The predicted class refers to the classification provided by an expert, whereas the actual class refers to the classification provided by the mean values of the class in which the subject actually operates.

(a) Right thigh with DL								(b) Lumbar region with DL
		Predicted Values								Predicted Values
		ACC	AK	KVG	KVR	HS	BO			ACC	AK	KVG	KVR	HS	BO
Actual Values	ACC	114	29	43	18	0	30	Actual Values	ACC	80	21	59	49	13	12
	AK	43	92	14	22	20	43		AK	28	82	11	51	44	18
	KVG	24	23	170	0	0	17		KVG	76	11	105	24	16	2
	KVR	28	19	3	168	2	14		KVR	39	33	22	87	40	13
	HS	0	13	0	4	188	29		HS	6	32	13	19	149	15
	BO	34	46	26	4	34	90		BO	15	31	4	17	23	144
(c) Right thigh with CML								(d) Lumbar region with CML
		Predicted Values								Predicted Values
		ACC	AK	KVG	KVR	HS	BO			ACC	AK	KVG	KVR	HS	BO
Actual Values	ACC	114	29	43	18	0	30	Actual Values	ACC	71	22	62	34	28	17
	AK	43	92	14	22	20	43		AK	33	56	18	46	31	50
	KVG	24	23	170	0	0	17		KVG	62	18	87	17	21	29
	KVR	28	19	3	168	2	14		KVR	41	45	38	52	43	15
	HS	0	13	0	4	188	29		HS	23	31	19	49	74	38
	BO	34	46	26	4	34	90		BO	15	31	20	8	16	144