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Biofeedback a confronto con istruzioni verbali nel trattamento della broncopneumopatia cronica ostruttiva (BPCO) [Italian]
Basaglia N, Padovan GC
Europa Medicophysica [Mediterranean Journal of Physical and Rehabilitation Medicine] 1984;20:23-27
clinical trial
1/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: No; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: No; Point estimates and variability: No. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

Abundant data exist to suggest that respiratory muscle dysfunction occurs in patients with COLD and may contribute to respiratory symptoms and limitations of exercise directly because of fatigue of the respiratory muscles and impaired mechanics of breathing. The benefits of diaphragmatic breathing reported can be explained by the reduction of respiratory rate and the increase of tidal volume. On the basis of reviewed literature the authors discusses the management of COLD with respiratory feedback, to provide conscious information when the patient breathed with his upper thorax rather than his diaphragm. To establish adequate control conditions 20 patients attended 20 sessions. Ten patient (group 1) were provided with analogue feedback and ten (group 2) with instructions by the physiotherapist. Analysis of the data indicated that FEV1, TV, MVV, were higher in group 1 rather than in group 2 after treatment, while all the patients referred about improved tolerance for exertion.

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