The relationship between physical functional capacity and lung function in obese children and adolescents

BMC Pulmonary Medicine

Table 7 Correlation between spirometric variables and 6MWT variables

	FVC	FEV₁	FEV₁/FVC	FEF_25%	FEF_50%	FEF_75%	FEF_max	ERV
WD	0.187	0.140	0	0.231	0.119	0.029	0.231	0.375
W	0.214	−0.125	−0.381	−0.384	−0.297	−0.300	−0.398	0.357
Rest
Systolic BP	0.118	−0.239	−0.317	−0.284	−0.260	−0.361	−0.251	0.029
Diastolic BP	0.544	0.124	−0.313	−0.037	−0.307	−0.199	−0.035	−0.002
HR	−0.016	−0.182	−0.200	0.050	−0.155	−0.334	−0.048	−0.432
Borg	0.061	−0.366	−0.536	−0.168	−0.415	−0.512	−0.096	0.089
6’ minutes
Systolic BP	0.135	−0.261	−0.376	−0.366	−0.423	−0.357	−0.251	−0.134
9’ minutes
HR	−0.008	−0.052	−0.041	0.257	−0.013	−0.178	0.054	−0.367
BorgL	0.433	0.239	−0.131	−0.166	−0.065	0.057	−0.085	0.154

FVC = forced vital capacity; FEV₁ = forced expiratory volume at first second; FEF = forced expiratory flow; % = percentage; max = maximum; ERV = expiratory reserve volume; WD = walking distance; W = work; BP = blood pressure; HR = heart rate; Borg = dyspnea perception according to Borg scale; 6’ = six minutes; 9’ = nine minutes; BorgL = legs effort perception according to Borg scale. The Spearman correlation was used to determine relationships among variables. Positive p-values are shown in bold.

ISSN: 1471-2466