Effect of breathing rate on oxygen saturation and exercise performance in chronic heart failure

Bernardi, Luciano; Spadacini, Giammario; Bellwon, Jerzy; Hajrić, Ramiz; Roskamm, H.; Frey, Axel W.

doi:10.1016/s0140-6736(97)10341-5

Cited by 204 publications

(196 citation statements)

References 16 publications

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“…Recent research combining slow breathing with heart rate variability biofeedback has demonstrated beneficial effects on lung function and steroid medication needs in asthma (Lehrer, Vaschillo, Vaschillo, et al, 2004), as well as symptomatic and functional improvements in chronic obstructive pulmonary disease (Giardino, Chan, Borson, et al, 2004), but mechanisms behind such effects are largely unexplored. Although improvements in oxygen saturation have been observed for typical breathing frequencies (6-8 breaths/min) employed by such studies (see also Bernardi et al, 1998), these effects cannot easily explain changes in mechanical lung function, such as in basal respiratory resistance (Lehrer et al, 2004), or PEF variability, as observed in the present study. Future studies need to address the relative importance of various breathing maneuvers in respiration-oriented interventions and pathways through which they can affect organic disease manifestations.…”

Section: Pco2 Biofeedback In Asthma 18mentioning

confidence: 42%

“…Slow breathing training has been shown to be beneficial in cardiovascular disease (Bernardi, Spadacini, Bellwon, et al, 1998;Schein, Gavish, Herz, et al, 2001), probably due to its potential to increase baroreflex PCO2 Biofeedback in Asthma 19 sensitivity (Bernardi, Porta, Spicuzza, et al, 2002;Joseph, Porta, Casucci, et al, 2005).…”

Section: Pco2 Biofeedback In Asthma 18mentioning

confidence: 99%

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Targeting pCO2 in Asthma: Pilot Evaluation of a Capnometry-Assisted Breathing Training

Meuret

Ritz

Wilhelm

et al. 2007

Appl Psychophysiol Biofeedback

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Objectives: This pilot study aimed to evaluate the feasibility and potential benefits of a novel biofeedback breathing training for achieving sustained increases in pCO2 levels.Methods: Twelve asthma patients were randomly assigned to an immediate 4-week treatment group or waiting list control. Patients were instructed to modify their respiration in order to change levels of end-tidal pCO2 using a hand-held capnometer. Treatment outcome was assessed in frequency and distress of symptoms, asthma control, lung function, and variability of peak expiratory flow (PEF).Results: We found stable increases in pCO2 and reductions in respiration rate during treatment and 2-month follow-up. Mean pCO2 levels rose from a hypocapnic to a normocapnic range at follow-up. Frequency and distress of symptoms was reduced and reported asthma control increased. In addition, mean PEF variability decreased significantly in the treatment group.Conclusions: Our pilot intervention provided evidence for the feasibility of pCO2-biofeedback training in asthma patients.Response to Reviewers: Dear Dr. Gevirtz, Thank you for the latest comments on our manuscript "Targeting PCO2 in asthma: Pilot-evaluation of a capnometry-assisted breathing training" (APBI55). We have now amended the manuscript by following the reviewrs suggestions in the remaining details. The amended passages are marked in yellow.Thank you for the opportunity to have our work reviewed for your journal. We are excited that it has generated sufficient interest among our reviewers and look forward to seeing it in press. Please let us know if you need more information or materials.

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Section: Pco2 Biofeedback In Asthma 18mentioning

confidence: 42%

Section: Pco2 Biofeedback In Asthma 18mentioning

confidence: 99%

Targeting pCO2 in Asthma: Pilot Evaluation of a Capnometry-Assisted Breathing Training

Meuret

Ritz

Wilhelm

et al. 2007

Appl Psychophysiol Biofeedback

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“…17,18 The apparent role of slow and regular breathing as an active component in relaxation exercises, raises the hypothesis that routinely performed sessions of breathing exercises, as the sole intervention, may lead to a sustained reduction in BP. No attempt has been made in the past to test this hypothesis.…”

Section: Journal Of Human Hypertension (2001) 15 263-269mentioning

confidence: 99%

Breathing-control lowers blood pressure

et al. 2001

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We hypothesise that routinely applied short sessions of slow and regular breathing can lower blood pressure (BP). Using a new technology BIM (Breathe with Interactive Music), hypertensive patients were guided towards slow and regular breathing. The present study evaluates the efficacy of the BIM in lowering BP. We studied 33 patients (23M/10F), aged 25-75 years, with uncontrolled BP. Patients were randomised into either active treatment with the BIM (n ‫؍‬ 18) or a control treatment with a Walkman (n ‫؍‬ 15). Treatment at home included either musically-guided breathing exercises with the BIM or listening to quiet music played by a Walkman for 10 min daily for 8 weeks. BP and heart rate were measured both at the clinic and at home with an Omron IC BP monitor. Clinic BP levels were measured at baseline, and after 4 and 8 weeks of treatment. Home

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“…7 In the breathing cycle, the muscle sympathetic nerve activity declines during inspiration, reaching it's nadir at the end-inspiration/early-expiration, and then rises. 8 There has been no investigation of the peripheral sympathetic nerve activity during slow breathing using BIM device.…”

Section: Introductionmentioning

confidence: 99%

Sympathetic nerve activity is decreased during device-guided slow breathing

et al. 2010

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It is known that slow breathing (o10 breaths min -1 ) reduces blood pressure (BP), but the mechanisms involved in this phenomenon are not completely clear. The aim of this study was to evaluate the acute responses of the muscle sympathetic nerve activity, BP and heart rate (HR), using device-guided slow breathing (breathe with interactive music (BIM)) or calm music. In all, 27 treated mild hypertensives were enrolled. Muscle sympathetic nerve activity, BP and HR were measured for 5 min before the use of the device (n¼14) or while subjects listened to calm music (n¼13), it was measured again for 15 min while in use and finally, 5 min after the interventions. BIM device reduced respiratory rate from 16 ± 3 beats per minute (b.p.m) to 5.5 ± 1.8 b.p.m (Po0.05), calm music did not affect this variable. Both interventions reduced systolic (À6 and À4 mm Hg for both) and diastolic BPs (À4 mm Hg and À3 mm Hg, respectively) and did not affect the HR (À1 and À2 b.p.m respectively). Only the BIM device reduced the sympathetic nerve activity of the sample (À8 bursts min -1 ). In conclusion, both device-guided slow breathing and listening to calm music have decreased BP but only the device-guided slow breathing was able to reduce the peripheral sympathetic nerve activity.

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Effect of breathing rate on oxygen saturation and exercise performance in chronic heart failure

Cited by 204 publications

References 16 publications

Targeting pCO2 in Asthma: Pilot Evaluation of a Capnometry-Assisted Breathing Training

Targeting pCO2 in Asthma: Pilot Evaluation of a Capnometry-Assisted Breathing Training

Breathing-control lowers blood pressure

Sympathetic nerve activity is decreased during device-guided slow breathing

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