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| Alves,G.S.; Britto,R.R.; Campos,F.C.; Vilaça,A.B.O.; Moraes,K.S.; Parreira,V.F.. |
| Subjects with chronic obstructive pulmonary disease (COPD) present breathing pattern and thoracoabdominal motion abnormalities that may contribute to exercise limitation. Twenty-two men with stable COPD (FEV1 = 42.6 ± 13.5% predicted; age 68 ± 8 years; mean ± SD) on usual medication and with at least 5 years of diagnosis were evaluated at rest and during an incremental cycle exercise test (10 watts/2 min). Changes in respiratory frequency, tidal volume, rib cage and abdominal motion contribution to tidal volume and the phase angle that measures the asynchrony were analyzed by inductive respiratory plethysmography at rest and during three levels of exercise (30-50, 70-80, and 100% maximal work load). Repeated measures ANOVA followed by pre-planned contrasts... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Breathing pattern; Chronic obstructive pulmonary disease; Exercise; Plethysmography; Ventilation. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008001100001 |
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| Tomich,G.M.; França,D.C.; Diório,A.C.M.; Britto,R.R.; Sampaio,R.F.; Parreira,V.F.. |
| The objective of the present study was to evaluate breathing pattern, thoracoabdominal motion and muscular activity during three breathing exercises: diaphragmatic breathing (DB), flow-oriented (Triflo II) incentive spirometry and volume-oriented (Voldyne) incentive spirometry. Seventeen healthy subjects (12 females, 5 males) aged 23 ± 5 years (mean ± SD) were studied. Calibrated respiratory inductive plethysmography was used to measure the following variables during rest (baseline) and breathing exercises: tidal volume (Vt), respiratory frequency (f), rib cage contribution to Vt (RC/Vt), inspiratory duty cycle (Ti/Ttot), and phase angle (PhAng). Sternocleidomastoid muscle activity was assessed by surface electromyography. Statistical analysis was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diaphragmatic breathing; Incentive spirometry; Chest physiotherapy; Breathing pattern; Electromyography; Respiratory inductive plethysmography. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007001000015 |
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