Evaluating the Reproducibility of Motion Analysis Scanning of the Spine during Walking

Table 1

Raw data collected from one subject for all 3 trials.

	Kyphosis				Lordosis
Trial 1	max 1	65.4	min 1	54.3	max 1	44.8	min 1	40.5
Trial 2	max 2	61.9	min 2	55	max 2	45.5	min 2	40.9
Trial 3	max 3	62.8	min 3	57.7	max 3	45.4	min 3	39.3
	Average max	63.4	Average min	55.7	Average max	45.2	Average min	40.2
	SD	1.82	SD	1.80	SD	0.38	SD	0.83
	L1 rotation				T4 rotation
Trial 1	max 1	2.5	min 1	−0.2	max 1	5	min 1	1
	max 2	3.2	min 2	−0.4	max 2	6	min 2	0
	max 3	4.2	min 3	0.2	max 3	6	min 3	0
	Avg. max	3.3	Avg. min	−0.1	Avg. max	5.7	Avg. min	0.3
	SD	0.9	SD	0.3	SD	0.6	SD	0.6
Trial 2	max 1	3.1	min 1	0.5	max 1	7	min 1	1
	max 2	4.9	min 2	−2.4	max 2	9	min 2	−1
	max 3	3.7	min 3	−0.7	max 3	9	min 3	0
	Avg. max	3.9	Avg. min	−0.9	Avg. max	8.3	Avg. min	0
	SD	0.9	SD	1.5	SD	1.2	SD	1
Trial 3	max 1	3.8	min 1	−0.9	max 1	6	min 1	−1
	max 2	3.4	min 2	−1	max 2	7	min 2	−2
	max 3	3.4	min 3	−1	max 3	7	min 3	−2
	Avg. max	3.5	Avg. min	−1.0	Avg. max	6.7	Avg. min	−1.7
	SD	0.2	SD	0.1	SD	0.6	SD	0.6
	Pelvis rotation
Trial 1	max 1	1.2	min 1	−2.1
	max 2	3	min 2	−4.2
	max 3	4.1	min 3	−3.7
	Avg max	2.8	Avg min	−3.3
	SD	1.5	SD	1.1
Trial 2	max 1	3.4	min 1	−4.2
	max 2	1.4	min 2	−5
	max 3	2.2	min 3	−4.1
	Avg max	2.3	Avg min	−4.4
	SD	1.0	SD	0.5
Trial 3	max 1	3.4	min 1	−4.5
	max 2	2.4	min 2	−6.7
	max 3	2.2	min 3	−3.9
	Avg max	2.7	Avg min	−5.0
	SD	0.6	SD	1.5
	Trunk Length
Trial 1	max	463.2	min	459
Trial 2	max	463.4	min	457.3
Trial 3	max	462.7	min	455
	Avg max	463.1	Avg min	457.1
	SD	0.4	SD	2.0