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Titolo:
Thresholds of resistive load detection in children with asthma
Autore:
Fritz, GK; McQuaid, EL; Nassau, JH; Klein, RB; Mansell, A;
Indirizzi:
Brown Univ, Div Child & Adolescent Psychiat, Rhode Isl Hosp, Sch Med, Providence, RI 02903 USA Brown Univ Providence RI USA 02903 osp, Sch Med, Providence, RI 02903 USA Univ Texas, Dept Pediat, Tyler, TX USA Univ Texas Tyler TX USAUniv Texas, Dept Pediat, Tyler, TX USA Brown Univ, Rhode Isl Hosp, Dept Pediat, Sch Med, Providence, RI 02903 USABrown Univ Providence RI USA 02903 iat, Sch Med, Providence, RI 02903 USA
Titolo Testata:
PEDIATRIC PULMONOLOGY
fascicolo: 4, volume: 28, anno: 1999,
pagine: 271 - 276
SICI:
8755-6863(199910)28:4<271:TORLDI>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
AIR-FLOW RESISTANCE; PERCEPTION; OBSTRUCTION; RECOGNITION;
Keywords:
Weber fraction threshold; asthma; resistive loading; threshold detection; intelligence; lung function tests;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Fritz, GK Brown Univ, Div Child & Adolescent Psychiat, Rhode Isl Hosp, SchMed, 593 Eddy St, Providence, RI 02903 USA Brown Univ 593 Eddy St Providence RI USA 02903 nce, RI 02903 USA
Citazione:
G.K. Fritz et al., "Thresholds of resistive load detection in children with asthma", PEDIAT PULM, 28(4), 1999, pp. 271-276

Abstract

Threshold detection of added resistive loads was studied in asthmatic children and compared to data previously obtained in a group of healthy children. The relationships between possible psychological predictors of perceptual ability, the perceptual threshold, and functional morbidity variables were also investigated. Our subjects were 103 children (mean age, 10.9 years) with asthma who completed two laboratory protocols in which they were askedto distinguish breaths with varying degrees of added resistance from unloaded breaths. Using two different computer-driven protocols, resistances were presented as percentages of each child's intrinsic respiratory system resistance (R-rs). Cognitive ability was assessed through subtests of the Wechsler Intelligence Scale for Children, 3rd edition (WISC-III), and functional morbidity was quantified through a combination of school absences, emergency medical visits, and days hospitalized. Detection thresholds for both protocols were highly correlated with intrinsic resistance (r = 0.49 and 0.66; P < 0.001). Weber fraction thresholds were significantly lower for asthmatic children than healthy controls. Thresholds were not significantly related to either intelligence or pulmonary functional abnormalities due to asthma. Methodologic limitations require cautious interpretation of the results, but we conclude that psychophysical approaches may be useful in the study of symptom perception in pediatric asthma. (C) 1999 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 14:56:27