Relaxation decreases large-airway but not small-airway asthma |
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| Authors: | P M Lehrer S M Hochron B McCann L Swartzman P Reba |
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| Affiliation: | 1. University of Medicine and Dentistry of New Jersey, Rutgers Medical School, Busch Campus, Piscataway, New Jersey 08854, U.S.A.;2. University of Pittsburgh School of Medicine, Western Psychiatric Institute and Clinic, USA;3. Rutgers—The State University, USA;1. Departments of Emergency Medicine and Pediatrics, Section of Pediatric Emergency Medicine, Brown University/Hasbro Children''s Hospital, Providence, Rhode Island;2. Warren Alpert Medical School of Brown University/Hasbro Children''s Hospital, Providence, Rhode Island;3. School of Public Health, Brown University, Providence, Rhode Island;4. Bradley/Hasbro Children''s Research Center and Department of Psychiatry, Rhode Island Hospital, Providence, Rhode Island;1. Centre for the Study of Applied Psychology, Guangdong Key Laboratory of Mental Health and Cognitive Science, School of Psychology, Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou, 510631, PR China;2. Department of Applied Psychology, Guangdong University of Foreign Studies, Guangzhou, 510631, PR China;1. Escuela Internacional de Doctorado (EIDUM), Universidad de Murcia , Espinardo, Murcia, España;2. Departamento de Cirugía, Pediatría, Obstetricia y Ginecología, IMIB, Facultad de Medicina, Universidad de Murcia , El Palmar, Murcia, España;3. Departamento de Psicología Evolutiva y de la Educación, Universidad de Murcia, Espinardo, Murcia, España;4. Unidad de Neumología Pediátrica, Hospital Universitario Los Arcos del Mar Menor, San Javier, Murcia, España;1. Department of Psychology, University of Essex, Wivenhoe Park, Colchester, Essex CO4 3SQ, UK;2. Department of Psychology, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK |
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| Abstract: | Eleven asthmatic subjects were each offered sixteen sessions of relaxation therapy, consisting of progressive relaxation, desensitization, and EMG biofeedback to the trapezius and frontalis areas, while 9 subjects were offered a complex placebo. Subjects in the relaxation condition showed greater improvement than subjects in the placebo condition in performance on a methacholine challenge test which, as a measure of airway reactivity, reflects degree of asthma. Subjects in both conditions showed improvements in various self-report measures of asthma symptoms and psychopathology. Subject in the relaxation condition reported a significantly greater decrease in frequency of emotional precursors to asthma attacks than subjects in the control condition. Overall improvement on the methacholine challenge test was predicted almost perfectly by heliox spirometry. Only subjects showing predominant large-airway obstruction obstruction improved on the methacholine challenge test. The relative contribution of large airway obstruction to asthma was found to correlate with psychopathology. |
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