Maximal Respiratory Pressures and Maximum Voluntary Ventilation in Young Arabs: Association with Anthropometrics and Physical Activity

Figures & data

Table 1 Demographics, Anthropometric, Pulmonary Function Test, Maximal Respiratory Pressures and Physical Activity Components of GPAQ

	Males	Females	Total	p value (<0.05)
Demographics and Anthropometric Measures
Total Number	80	85	165	—–
Age (Years)	23.90 ± 3.14		165	—–
Weight (Kgs)	77.13 ± 6.7	61.75 ± 8.5	165	0.08
BMI Kg/m^2	25.62 ± 3.0	24.39 ± 3.1	165	0.61
Pulmonary Function Test
FVC (L)	4.38 ± 0.9	3.36 ± 0.7	165	0.04
FVC (%)	92.47 ± 14.9	83.09 ± 13.9	165	0.31
FEV1 (L)	3.89 ± 0.96	2.96 ± 0.8	165	0.14
FEV1 (%)	88.76 ± 8.7	84.05 ± 14.0	165	<0.01
FEV1/FVC (% Pred)	96.45 ± 13.3	95.56 ± 12.2	165	0.12
MVV (%)	111.58 ± 25.4	91.8 ± 13.8	165	<0.01
MIP	83.67 ± 19.2	73.16 ± 14.6	165	<0.01
MEP	99.95 ± 19.9	82.77 ± 19.1	165	0.42
GPAQ Components
P 16 (a-b)	280 (140, 490)	420 (240, 600)	165	0.011
Work	0 (0, 1800)	0 (0, 2220)	165	0.726
Transport	80 (0, 480)	180 (0, 840)	165	0.400
Leisure	360 (0, 1860)	960 (0, 2670)	165	0.061
MMW	1660 (360, 4440)	2280 (700, 6270)	165	0.019
TPA	120 (30, 240)	140 (60, 265)	165	0.144

Table 2 Correlation Coefficient (r) of MIP, MEP and MVV with Demographics, Anthropometric Measures, Pulmonary Function Test Measures and Global Physical Activity Questionnaire (GPAQ) Components

Parameters	MIP (cm H2O)		MEP (cm H2O)		MVV (%)
Demographics and Anthropometric Measures	r-value	p-value	r-value	p-value	r-value	p-value
Age (Years)	−0.003	0.97	0.02	0.72	−0.15	0.04
Weight (Kgs)	0.192	0.01	0.30	<0.01	0.24	<0.01
Height (Meters)	0.42	0.01	0.48	<0.01	0.41	<0.01
BMI (Kg/m^2)	−0.06	0.39	−0.00	0.96	−0.02	0.71
Pulmonary Function Test
FVC (L)	0.67	<0.01	0.61	<0.01	0.43	<0.01
FVC (%)	0.47	<0.01	0.44	<0.01	0.41	<0.01
FEV1 (L)	0.65	<0.01	0.61	<0.01	0.41	<0.01
FEV1 (%)	0.33	<0.01	0.28	<0.01	0.34	<0.01
FEV1/FVC (% Pred)	0.22	<0.01	0.13	0.08	0.27	<0.01
MVV (%)	0.27	<0.01	0.27	<0.01	——	——
GPAQ Components
P16(a-b)	0.06	0.39	0.08	0.25	0.05	0.51
MMW	0.01	0.89	−0.03	0.63	0.03	0.65
TPA	0.04	0.56	−0.01	0.85	0.05	0.51

Table 3 Association of MIP, MEP and PFT Values (FVC, FEV1 and MVV) with Age, Gender and BMI Using Regression Analysis

Dependent Variable	Independent Variable	β with 95% CI	P-value	R^2	Adj.R^2
FVC	Age	−0.012 (−0.54, 0.03)	0.567	0.480	0.470
	Gender	1.56 (1.30, 1.82)	<0.001
	BMI	−0.09 (−0.14, −0.05)	<0.001
FEV1	Age	−0.013 (−0.06, 0.03)	0.546	0.437	0.427
	Gender	1.45 (1.19, 1.71)	<0.001
	BMI	−0.09 (−0.13, −0.05)	<0.001
MVV	Age	−1.56 (−2.55, −0.56)	0.002	0.261	0.247
	Gender	22.45 (16.26, 28.65)	<0.001
	BMI	−0.79 (−1.79, 0.21)	0.119
MIP	Age	−0.04 (−0.93, 0.84)	0.924	0.116	0.099
	Gender	11.50 (6.01, 16.99)	<0.001
	BMI	−1.17 (−2.06, −0.29)	0.01
MEP	Age	−0.02 (−1.04, 1.01)	0.98	0.179	0.164
	Gender	18.85 (12.48, 25.21)	<0.001
	BMI	−0.87 (−1.89, 0.16)	0.09

Figure 1 Scatter diagram of FVC with age, gender and BMI (R²- coefficient of determination).

Figure 2 Scatter diagram of FEV1 with age, gender and BMI (R²- coefficient of determination).

Figure 3 Scatter diagram of MVV with age, gender and BMI (R²- coefficient of determination).

Figure 4 Scatter diagram of MIP with age, gender and BMI (R²- coefficient of determination).

Figure 5 Scatter diagram of MEP with age, gender and BMI (R²- coefficient of determination).