Construction of Evaluation Index System of Office Sitting Comfort Based on Ergonomics

Table 8

Classification of sitting posture (common posture).

Head posture	Torso posture
	Initial	Lean forward	Lean back	Left tilt	Right tilt	Turn left	Turn right
Initial	1	2	3	4	5	6	7
Lean forward	8	9	10	11	12	13	14
Lean back	15	16	17	18	19	20	21
Left tilt	22	23	24	25	26	27	28
Right tilt	29	30	31	32	33	34	35
Turn left	36	37	38	39	40	41	42
Turn right	43	44	45	46	47	48	49