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Thorax mobility is related to PImax and lungfunction

This study with 64 healthy subjects examined the relationship between the passive mobility of the thorax (Cax and Cthor), respiratory muscle strength (PImax and PEmax) and lung function (IC, FVC, FEV1 and ERV). The volunteers were 24 ± 3 years, Cax was 6.3 ± 2.0 cm, Cthor was 7.5 ± 2.3 cm. Airway pressure were PImax: -90.4 ± 10.6% pred; PEmax: 92.8 ± 13.5% pred. Lung function IC: 99.7 ± 8.6% pred, FVC: 101.9 ± 10.6% pred, FEV1: 98.2 ± 10.3% pred; ERV: 90.9 ± 19.9% pred. There was a significant correlation between Cax and FVC, FEV1, PImax, Pemax, IC (r: 0.32, K: 0.30, K: 0.48, K: 0.25, K: 0.24, respectively) and between Cthor and FVC, FEV1, PImax, Pemax, IC, ERV (r: 0.50, K: 0.48, K: 0.46, K: 0.37, K: 0.39, K: 0.47, respectively). There is a significant correlation between the thorax mobility, respiratory muscle strength, and lung function. The higher the Cax and Cthor how larger PImax, PEmax, and lung volumes in healthy subjects.

Respir Care 2013 May 14

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