Source: Annual Congress 2007 - Paediatric respiratory physiology in health and disease
Disease area: Airway diseases, Paediatric lung diseases, Respiratory critical care

Abstract

A low level of habitual activity may reduce the respiratory pressures in blind adolescents. Maximal inspiratory pressure (PI_max), maximal expiratory pressure (PE_max) and sniff nasal inspiratory pressure (Pn_sn) were measured in 8 blind boys and 28 blind girls as well as 17 boys and 27 girls age 12 to 19 in Khon Kaen, Thailand. The PE_max was measured from total lung capacity (TLC), and PI_max from residual volume (RV). The Pn_sn was measured at RV through one plugged nostril whist the other remains open. PE_max was 130 ± 30 cmH₂O in blind boys and 98 ± 16 in blind girls (p<0.018), PI_max was 102 ± 31 cmH₂O in blind boys and 81 ± 18 in blind girls which was not significantly different, and Pn_sn was 93 ± 42 cmH₂O in boys and 76 ± 23 cmH₂O in girls (p <0.001). These values are only 69% to 84% of those of healthy adolescents in both sexes (p<0.001 to p<0.031). We conclude that the low habitual activity influences respiratory muscle strength in adolescents.
Keywords: respiratory muscle strength, blind adolescents

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Citations should be made in the following way:
W. Khrisanapant, P. Wannanon, O. Pasuriyawong, C. Jones (Khon Kaen, Thailand). Respiratory pressures in the blind. Eur Respir J 2007; 30: Suppl. 51, 2251

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