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At least 19 recordsLinked to original sources

Effects of breathing exercises on breathing patterns in obese and non-obese subjects.

Chest physiotherapy in connection with abdominal surgery includes different deep-breathing exercises to prevent post-operative pulmonary complications. The therapy is effective in preventing pulmonary complications, especially in high-risk patients such as obese persons. The mechanisms behind the effect is unclear, but part of the effect may be explained by the changes in breathing patterns. The aim of this study was therefore to describe and to analyse the breathing patterns in obese and non-obese subjects during three different breathing techniques frequently used in the treatment of post-operative patients. Twenty-one severely obese [body mass index (BMI) > 40] and 21 non-obese (BMI 19-25) subjects were studied. All persons denied having any lung disease and were non-smokers. The breathing techniques investigated were: deep breaths without any resistance (DB), positive expiratory pressure (PEP) with an airway resistance of approximately +15 cmH2O (1.5 kPa) during expiration, inspiratory resistance positive expiratory pressure (IR-PEP) with a pressure of approximately -10 cmH2O (-1.0 kPa) during inspiration. Expiratory resistance as for PEP. Volume against time was monitored while the subjects were sitting in a body plethysmograph. Variables for volume and flow during the breathing cycle were determined. Tidal volume and alveolar ventilation were highest during DB, and peak inspiratory volume was significantly higher than during PEP and IR-PEP in the group of obese subjects. The breathing cycles were prolonged in all techniques but were most prolonged in PEP and IR-PEP. The functional residual capacity (FRC) was significantly lower during DB than during PEP and IR-PEP in the group of obese subjects. FRC as determined within 2 min of finishing each breathing technique was identical to before the breathing manoeuvres.

Adult↗

Comparison of the oxygen cost of breathing exercises and spontaneous breathing in patients with stable chronic obstructive pulmonary disease.

BACKGROUND AND PURPOSE: The oxygen demand of breathing exercises and the clinical implications have not been studied in detail. In this study, the oxygen cost of 3 common breathing exercises believed to reduce oxygen cost (ie, work of breathing) was compared with that of spontaneous breathing in patients with chronic obstructive pulmonary disease (COPD). SUBJECTS: Thirty subjects with stable, moderately severe COPD participated. METHODS: Oxygen consumption (VO2) and respiratory rate (RR) during spontaneous breathing at rest (SB) were recorded for 10 minutes. Subjects then performed 3 breathing exercises in random order, with a rest between exercises: diaphragmatic breathing (DB), pursed-lip breathing (PLB), and a combination of DB and PLB (CB). Oxygen consumption and RR were measured. RESULTS: Mean VO2 ( SD) was lower during the breathing exercises (165.8 +/- 22.3 mL O2/min for DB, 164.8 +/- 20.9 mL O2/min for PLB, and 167.7 +/- 20.7 mL O2/min for CB) compared with SB (174.5 +/- 25.2 mL O2/min). Correspondingly, mean RR (+/- SD) was higher during SB (17.3 +/- 4.23 breaths/min), followed by DB (15.0 +/- 4.32 breaths/min), PLB (12.8 +/- 3.53 breaths/min), and CB (11.2 +/- 2.7 breaths/min). DISCUSSION AND CONCLUSION: Given that patients do not spontaneously adopt the breathing pattern with the least O2 and the lowest RR, the results suggest that determinants of the breathing pattern other than metabolic demand warrant being a primary focus in patients with COPD.

Aged↗

Effect of short-term practice of breathing exercises on autonomic functions in normal human volunteers.

BACKGROUND & OBJECTIVES: Practice of breathing exercises like pranayama is known to improve autonomic function by changing sympathetic or parasympathetic activity. Therefore, in the present study the effect of breathing exercises on autonomic functions was performed in young volunteers in the age group of 17-19 yr. METHODS: A total of 60 male undergraduate medical students were randomly divided into two groups: slow breathing group (that practiced slow breathing exercise) and the fast breathing group (that practiced fast breathing exercise). The breathing exercises were practiced for a period of three months. Autonomic function tests were performed before and after the practice of breathing exercises. RESULTS: The increased parasympathetic activity and decreased sympathetic activity were observed in slow breathing group, whereas no significant change in autonomic functions was observed in the fast breathing group. INTERPRETATION & CONCLUSION: The findings of the present study show that regular practice of slow breathing exercise for three months improves autonomic functions, while practice of fast breathing exercise for the same duration does not affect the autonomic functions.

Adolescent↗

Quantitative research for improving respiratory muscle contraction by breathing exercise.

OBJECTIVE: To investigate the effects of breathing exercise on chronic obstructive pulmonary disease (COPD). PATIENTS AND METHODS: 324 patients stable COPD were randomly assigned to either the breathing exercise group (Group I) or control group consisting of placebo (Group II). The maximum respiratory pressure (320 cases) and transdiaphragmatic pressure (129 cases) were monitored via RMS-I and Type-2 pressure measurements. The breathing exercises were taught and checked by experienced specialists periodically. Comparison was made between Group I and Group II using maximum inspiratory pressure (MIP), maximum expiratory pressure (MEP), diaphragmatic pressure (Pdi) and maximum transdiaphragmatic pressure (Pdimax) after 1 to 20 months. RESULTS: In Group I MIP increased by 30.42%, MEP 32.10%, Pdi 30.94% and Pdimax 65.59% (P < 0.001). No significant changes were observed in Group II given the placebo. The MIP, MEP, Pdi and Pdimax were 6.95%, 2.92%, 14.63 and 9.05% respectively (P > 0.05). CONCLUSIONS: Breathing exercise has a potent and long lasting effect on respiratory muscle contraction. The methods mentioned above can be used as standard quantitative index for contractile properties of respiratory muscle.

Aged↗

Effects of a relaxation breathing exercise on fatigue in haemopoietic stem cell transplantation patients.

AIM: Our purpose was to investigate the effect of a relaxation breathing exercise on fatigue in allogenic haemopoietic stem cell transplantation patients. BACKGROUND: Exercise is a promising approach in ameliorating the fatigue associated with cancer and its treatment. DESIGN: A randomized design with control, experimental groups being assessed pre- and postintervention. METHODS: Thirty-five patients were randomly selected, with 18 assigned to an exercise group and 17 to a control group. The exercise intervention lasted for 30 minutes every day for six weeks. It consisted of physical exercise combined with relaxation breathing exercise. Fatigue was measured by the revised version of the Piper Fatigue Scale. RESULTS: The exercise group had a greater decrease in fatigue than the control group. CONCLUSION: These findings indicate that a relaxation breathing exercise would improve fatigue in allogenic haemopoietic stem cell transplantation patients. RELEVANCE TO CLINICAL PRACTICE: A relaxation breathing exercise by a nurse can improve fatigue in allogenic haemopoietic stem cell transplantation patients.

Academic Medical Centers↗

Deep-breathing exercises reduce atelectasis and improve pulmonary function after coronary artery bypass surgery.

STUDY OBJECTIVES: To investigate the effects of deep-breathing exercises on pulmonary function, atelectasis, and arterial blood gas levels after coronary artery bypass graft (CABG) surgery. DESIGN, SETTING, AND PATIENTS: In a prospective, randomized trial, patients performing deep-breathing exercises (n = 48) were compared to a control group (n = 42) who performed no breathing exercises postoperatively. Patient management was similar in the groups in terms of assessment, positioning, and mobility. INTERVENTIONS: The patients in the deep-breathing group were instructed to perform breathing exercises hourly during daytime for the first 4 postoperative days. The exercises consisted of 30 slow, deep breaths performed with a positive expiratory pressure blow-bottle device (+ 10 cm H(2)O). MEASUREMENTS AND RESULTS: Spirometric measurements, spiral CT (three transverse levels), arterial blood gas analysis, and scoring of subjective experience of the breathing exercises were performed on the fourth postoperative day. Atelectasis was only half the size in the deep-breathing group compared to the control group, amounting to 2.6 +/- 2.2% vs 4.7 +/- 5.7% (p = 0.045) at the basal level and 0.1 +/- 0.2% vs 0.3 +/- 0.5% (mean +/- SD) [p = 0.01] at the apical level. Compared to the control subjects, the patients in the deep-breathing group had a significantly smaller reduction in FVC (to 71 +/- 12%, vs 64 +/- 13% of the preoperative values; p = 0.01) and FEV(1) (to 71 +/- 11%, vs 65 +/- 13% of the preoperative values; p = 0.01). Arterial oxygen tension, carbon dioxide tension, fever, or length of ICU or hospital stay did not differ between the groups. In the deep-breathing group, 72% of the patients experienced a subjective benefit from the exercises. CONCLUSIONS: Patients performing deep-breathing exercises after CABG surgery had significantly smaller atelectatic areas and better pulmonary function on the fourth postoperative day compared to a control group performing no exercises.

Aged↗

Effectiveness of breathing exercises in preventing pulmonary complications following open heart surgery.

The effectiveness of breathing exercises in preventing pulmonary complications was studied in 40 patients undergoing open-heart surgery. Both high- and low-risk patients in the experimental group received one preoperative teaching session and treatment twice a day for the first four days postextubation. Routine postoperative care was given to all 40 patients. Breathing exercises reduced the incidence of pulmonary complications and the necessity for percutaneous endotracheal catheters in the high-risk group. These results justify the use of breathing exercises with the high-risk open-heart surgical patient.

Adult↗

Qigong--Chinese breathing exercise.

Qigong is an ancient Chinese breathing exercise with meditation which is being developed today for therapy of chronic illnesses in the People's Republic of China. It is claimed to cure gastric ulcers, hypertension, anxiety neurosis, otitis media, cancer and has even been used as a form of anaesthesia. Although the physiological effects produced by Qigong resemble those of meditation, there are certain features that are unique and often mysterious. Research in the future may prove Qigong to be a useful adjunct in the practice of medicine.

Anesthesia↗

Does removal of deep breathing exercises from a physiotherapy program including pre-operative education and early mobilisation after cardiac surgery alter patient outcomes?

The aim of this study was to establish whether removal of breathing exercises from a regimen including early mobilisation changes the incidence of post-operative pulmonary complications for patients after cardiac surgery. Two hundred and thirty patients undergoing open heart surgery at Monash Medical Centre, Melbourne, were enrolled in this randomised controlled trial. All patients received physiotherapy treatment pre-operatively and post-operatively for three days. Patients were mobilised as soon as possible after surgery. Breathing group (control) patients performed a set routine of deep breathing exercises at each physiotherapy visit while those in the intervention group did not perform this routine. Other than the breathing exercises, patient management was similar between groups in terms of assessment, positioning and mobility. The incidence of postoperative pulmonary complications, post-operative length of stay, oxyhaemoglobin saturation and pulmonary function were measured pre-operatively and post-operatively. Intention-to-treat analysis was performed for post-operative pulmonary complications and length of stay. Other data were analysed using t-tests, chi square and repeated measures analysis of variance. There were no significant differences between the groups in the primary dependent variables. It is concluded that removal of breathing exercises from the routine physiotherapy management of open heart surgery patients does not significantly alter patient outcome.

Breathing Exercises↗

Are maximal inspiratory breathing exercises or incentive spirometry better than early mobilization after cardiopulmonary bypass?

Forty-nine adults who had undergone cardiopulmonary bypass surgery were randomly assigned to one of three exercise programs to determine if either maximal inspiratory breathing exercises or incentive spirometry offered a therapeutic advantage over early mobilization alone. After extubation, the patients started their assigned exercise programs. A physical examination and pulmonary function tests were performed preoperatively, at the start of the exercise program, and 24 and 48 hours after the start of the program. The results showed a significant decrease (approximately 50%) in lung volumes but no airflow obstruction in patients who had coronary artery bypass graft. In those patients who had valve replacement, lung volumes fell, and in addition, mild airflow obstruction occurred. A majority of patients had postoperative pulmonary complications. There were no significant differences among the exercise programs in improving lung volumes and airflow or in preventing postoperative complications. We conclude that maximal inspiratory breathing exercises or incentive spirometry, when used in addition to early mobilization, offers no therapeutic advantage over early mobilization alone after cardiopulmonary bypass surgery.

Adult↗

[A quantitative study on the effect of breathing exercises in improving respiratory muscle contration].

To study quantitatively the effect of breathing exercises on the prevention of progression in chronic obstructive pulmonary disease (COPD), 324 patients with stable COPD were randomly assigned to either breathing exercises (BE) or placebo medicine as control. The maximum respiratory pressure (320 cases) and transdiaphragmatic pressure (129 cases) were monitored with RMS-1 and Type-2 gastrointestinal pressure measuring instrument. BE were taught and checked by experienced specialists periodically. Patients in BE group were compared with those in the control group by measuring MIP, MEP, Pdi, and Pdimax after one to 20 months. In BE group MIP increased by 30.42%, MEP 32.10%, Pdi 30.94%, and Pdimax 65.59% (P < 0.001). No significant change was observed in the control group. MIP, MEP, Pdi, and Pdimax increased by 6.95%, 2.92%, 14.63% and 9.05% respectively (P < 0.05) in the control group. It is shown preliminarily that BE had potent and lasting effect on respiratory muscle contraction after studying large number of cases. The methods mentioned above can be used as quantitative indices for the contractile properties of respiratory muscle.

Aged↗

Breathing exercises for asthma.

BACKGROUND: There is much anecdotal evidence in Eastern and Western literature describing considerable benefits for patients with asthma when treated with breathing interventions. The term 'breathing exercise, training and retraining' has numerous interpretations depending on the nature of the therapy, therapist and cultural background. OBJECTIVES: To assess the evidence for the efficacy of breathing retraining in the treatment of patients with asthma. SEARCH STRATEGY: Trials were searched for in the Cochrane Airways Group trials register, Cochrane Complementary Medicine Field trials register, EMBASE: Physical Medicine & Rehabilitation Field, and Databases of the physiotherapy library of current research, World Congress of Physical Therapy Proceedings (1995) and AMED (Allied & Complementary Medicine Database 1985-2003/4). Hand searching of the Association of Chartered Physiotherapists in Respiratory Care Journals was undertaken. Chartered physiotherapists in the field of respiratory medicine were contacted and appeals made in the 'Physiotherapy' Journal and the Physiotherapy Respiratory Care magazine. Searches were undertaken of bibliographies from the included studies and other appropriate papers. Authors of included studies were contacted for information concerning other relevant trials. SELECTION CRITERIA: Randomised or quasi-randomised controlled trials of breathing retraining in patients of all ages with a diagnosis of asthma. Breathing retraining should be a major component of the treatment intervention. DATA COLLECTION AND ANALYSIS: Two reviewers (EH & FR) independently assessed trial quality and extracted data. Authors of included trials were contacted for additional data. Where possible adverse effects were noted. MAIN RESULTS: Abstracts were identified and 42 full text papers were obtained for assessment and possible inclusion. Thirty five studies were excluded. A total of five studies were included in the original review. Two further studies have been added to this update. Most studies were of small size. Two studies demonstrated significant reductions in rescue bronchodilator use and three studies showed reductions in acute exacerbations, although these were measured in different ways. Two single studies showed significant improvements in quality of life measures. Overall, benefits of breathing exercises were found in isolated outcome measures in single studies. Five studies compared breathing retraining with no active control and two with asthma education control groups. REVIEWER'S CONCLUSIONS: Comparisons and conclusions were difficult to evaluate as treatment interventions and outcome measurements from the seven trials varied considerably. At present therefore no reliable conclusions can be drawn concerning the use of breathing exercises for asthma in clinical practice. However trends for improvement, notably in quality of life measurements, are encouraging and further studies including full descriptions of treatment methods and outcome measurements are required.

Asthma↗

Breathing exercises for asthma.

BACKGROUND: There is much anecdotal evidence in Eastern and Western literature describing considerable benefits for patients with asthma when treated with breathing interventions. The term 'breathing exercise or training' has numerous interpretations depending on the nature of the therapy, therapist and cultural background. OBJECTIVES: The objective of this review was to assess the evidence for the effectiveness of breathing re-training in the treatment of patients with asthma. SEARCH STRATEGY: Trials were searched for in the Cochrane Airways Group trials register, Cochrane Complementary Medicine Field trials register, EMBASE: Physical Medicine & Rehabilitation Field, and Databases of the physiotherapy library of current research, World Congress of Physical Therapy Proceedings (1995) and AMED (Allied & Alternative Medicine). Hand searching of the Association of Chartered Physiotherapists in Respiratory Care Journals was undertaken. Chartered physiotherapists in the field of respiratory medicine were contacted and appeals made in the 'Physiotherapy' Journal and the Physiotherapy Respiratory Care magazine. SELECTION CRITERIA: Randomised or quasi randomised controlled trials of breathing re-training in patients of all ages with a diagnosis of asthma. Breathing re-training should be a major component of the treatment intervention. DATA COLLECTION AND ANALYSIS: Two reviewers (EH & FR) independently assessed trial quality and extracted data. Study authors were contacted for additional information. Information on adverse effects was collected from the included trials where possible. MAIN RESULTS: Abstracts were identified and 32 full text papers were obtained for assessment and possible inclusion of studies in the review. Twenty seven papers were excluded. A total of five papers were included in this review. Most were small. One large study (106 patients) showed an improvement in PEFR and reduction in rescue bronchodilator use. Otherwise benefit of breathing exercises was found in isolated outcome measures in single small studies. REVIEWER'S CONCLUSIONS: No reliable conclusions can be drawn concerning the use of breathing exercises for asthma in clinical practice.

Asthma↗

[Treatment of hypertension with device-guided breathing exercise].

Hypertension has been documented as a major risk factor for cardiovascular morbidity and mortality and lowering blood pressure (BP) can reduce this risk. Life style modifications such--as physical exercise, salt restriction and weight reduction can lower BP. Recently, a number of studies showed that device-guided breathing exercise, which lowers the respiration rate and modifies respiratory patterns, can also lower BP. Deep and slow breathing increase baroreflex sensitivity and heart rate variability, improve small vessels blood flow, and decrease peripheral resistance, thereby leading to BP reduction. Several studies including 268 hypertensive patients showed that 15 minutes of daily breathing exercise lowered BP within 8 weeks by 12.1/6.1 mmHg as compared to 7.6q3.4 mmHg in the control group. Most patients complied with the treatment. These results suggest that device guided breathing exercise can be used to lower BP.

Blood Pressure↗

The effect of breathing exercises with body positioning on regional lung ventilation.

This review discusses the distribution of ventilation in the normal adult lung and includes the influence of quiet and deep breathing on regional ventilation. The effects of breathing at low lung volumes; inspiratory flow rate; posture; age; and body weight on ventilation are also described. A selection of breathing exercises are examined with regard to their ability to influence regional ventilation. There is no evidence that breathing control (diaphragmatic breathing exercises) improves regional ventilation to the dependent zones of the lungs. Limited evidence does suggest that thoracic expansion exercises, whereby respiratory muscles are voluntarily contracted to alter regional chest wall expansion, can improve underlying ventilation. However, there remains a paucity of evidence regarding the effects of breathing exercises on regional ventilation.

Journal Article↗

[Effect of the special breathing exercises on the autonomic regulation of the functional state of respiration and muscular systems].

58 healthy and practically healthy persons were observed in order to determine the influence of the special breathing exercises on the vegetative support of the breathing and muscular systems functional state. As a result it was found that special breathing exercises significantly improve vegetative support of breathing and muscular systems thus resulting in rising their functional abilities.

Adaptation, Physiological↗

Nonpharmacologic treatment of resistant hypertensives by device-guided slow breathing exercises.

BACKGROUND: Recent studies have demonstrated the antihypertensive effect of slow breathing exercises, guided interactively by a device, in patients with uncontrolled blood pressure (BP) without changing medication. This study examined the response to the same treatment protocol in resistant hypertensives. METHODS: Seventeen resistant hypertensives exercised device-guided slow breathing for 8 weeks, 15 min daily, and self-monitored BP. Data stored in the devices were collected on a PC-based system. Clinical outcomes were office and home BP changes from baseline to end values. RESULTS: Significant reductions in both office BP (-12.9/-6.9 mm Hg, P <.001 and home BP (-6.4/-2.6 mm Hg, P <.01/P <.05) without side effects with 82% responders and good compliance. CONCLUSIONS: Resistant hypertensives can benefit from and are compliant with self-treatment by device-guided slow breathing.

Aged↗