Table 4.

Distribution of mean MIP, MEP, and 6MWT results in relation to general and neck posture in OB and NB groups.

			MIP	MEP	6MWT
		N	Mean±SD	Mean±SD	Mean±SD
	General posture
	Altered	18	43.9±20.2	50.0±18.9	629.1±38.7
OB	Normal	27	45.7±19.5	45.6±16.1	621.4±55.9
	p		0.700	0.375	0.610
	Altered	33	67.4±20.4	63.8±22.3	624.4±43.4
NB	Normal	29	55.9±24.0	53.1±21.3	625.9±52.0
	p		0.048	0.055	0.345
	Neck posture
	Altered	36	44.1±20.1	46.5±17.4	620.4±51.5
OB	Normal	9	48.3±17.6	50.5±16.6	640.5±37.3
	p		0.586	0.548	0.281
	Altered	30	70.8±19.1	67.6±22.0	619.0±48.3
NB	Normal	32	53.7±22.9	50.5±19.4	639.8±45.2
	p		0.003	0.004	0.085
	Neck posture
	OB - altered	36	44.1±20.1	46.5±17.4	620.4±51.5
	NB - altered	30	70.8±19.1	67.6±22.0	619.0±48.3
	p		<0.001	<0.001	0.959

MIP - maximal inspiratory pressure (cm H₂O); MEP - maximal expiratory pressure (cm H₂O); 6MWT - distance covered (m) in the 6-minute walk test; SD - standard deviation; OB - mouth breather; NB - nose breather