Effect of comprehensive rehabilitation on apnea hypopnea index in patients with obstructive sleep apnea: a protocol for randomized controlled trial.

PURPOSE: The aim of this study is to investigate the effect of comprehensive rehabilitation on apnea hypopnea index (AHI) in patients with obstructive sleep apnea (OSA). METHODS: Patients diagnosed with OSA and meeting the eligibility criteria will be randomly allocated in the groups. The experimental group will receive comprehensive rehabilitation, and the control group will receive myofunctional therapy. CPAP will be continued by all the participants. Both the groups will receive the interventions for 12 weeks. The primary outcome measures are AHI and Epworth Sleepiness Scale (ESS), and secondary outcomes are Pittsburg Sleep Quality Index (PSQI), Oxygen Desaturation Index (ODI), Snoring Index (SI), Manual Assessment of Respiratory Motion (MARM), Breath Hold Test (BHT), and Self Evaluation of Breathing Questionnaire (SEBQ). The outcomes will be assessed at baseline and at the end of 12 weeks. A follow-up will be taken at the end of 24 weeks. Power analysis suggests that enrollment of 118 patients will required. Repeated measures ANOVA will be used to analyze the effect of the intervention. CONCLUSION: By performing this research, we may develop insights on a novel comprehensive approach for treatment of patients with OSA. TRIAL REGISTRATION: CTRI/2023/10/058486.

The Application of Self-Made Disseminating and Descending Breathing Exercises in Home Rehabilitation of Stable COPD.

To investigate the clinical effects and application value of self-made disseminating and descending breathing exercises on home rehabilitation of patients with stable chronic obstructive pulmonary disease (COPD). Seeking to generate concepts for creating novel, convenient, and efficient COPD prognosis rehabilitation exercises aimed at enhancing the well-being and rehabilitation confidence of both COPD patients and their families. A total of 70 COPD patients admitted to our outpatient department from July 2019 to September 2021 were randomly divided into the exercise group (n = 35) and the control group (n = 35). The control group received routine breathing training, while the exercise group was treated with self-made disseminating and descending breathing exercises. The respiratory function, including pulmonary function (FVC, FEV1, FEV1/FVC) and respiratory muscle strength (MIP, MEP), exercise tolerance (6-min walking distance, 6MWT), Modified Medical Research Council Dyspnea Scale (mMRC, Borg), COPD quality of life score (CAT, SGRQ), anxiety and depression scores (HAMA, HAMD) were compared between the two groups after 12-week exercise. After 12-week training, the FEV1, MIP, and MEP in the exercise group were significantly higher than those in the control group (p < 0.001), and the 6MWT was significantly increased in the exercise group compared to the control group (p < 0.001); while the mMRC, Borg score, the scores of CAT, SGRQ, HAMA, and HAMD were found significantly lower than those in the control group (p < 0.001). The self-made disseminating and descending breathing exercises can improve respiratory function and reduce symptoms of dyspnea in COPD patients, while enhancing exercise tolerance and relieving anxiety and depression, and are worthy of clinical application.

Nursing-Based Sleep Promotion Intervention Effectiveness for Post Cardiac Surgery Patients: Systematic Review.

BACKGROUND: Sleep is a fundamental prerequisite for physical and mental health. Poor quality of sleep is common among post-cardiac surgery patients and leads to serious health conditions. OBJECTIVE: To conduct a systematic review that investigates the effectiveness of eye masks, earplugs and deep-breathing exercise on sleep quality among post-cardiac surgery patients. DESIGN: A systematic review of interventional studies was established to meet the PRISMA guidelines. METHODS: PRISMA guidelines were used to assess the findings of 11 selected studies that met the inclusion criteria, published between 2007 and 2023 across four databases: CINAHL, JDNR, MEDLINE and PubMed. The search was conducted on 23 November 2023. RESULTS: The 11 most eligible studies were analysed. All of them were interventional, encompassing a total of 787 participants. Randomised controlled trials were the most common design. Interventions included eye masks, earplugs and deep-breathing exercises. The Richards-Campbell Sleep Questionnaire was the most used assessment scale. Most of the reviewed studies found that the use of non-pharmacological interventions (eye masks, earplugs and deep-breathing exercise) significantly improves the quality of sleep. These interventions were also found to have potentially positive effects on reducing pain and delirium experienced by patients after undergoing cardiac surgery. CONCLUSIONS: Non-pharmacological interventions (eye masks, earplugs and deep-breathing exercise) were found to be cost-effective interventions that could be easily applied in the clinical setting and are effective in improving the quality of sleep among patients after cardiac surgery.

Effect of Short-term Deep Breathing Exercises on Perioperative Anxiety and Pain in Pediatric Orthopedic Patients: A Randomized Controlled Trial.

PURPOSE: There are currently no pediatric studies examining the effects of deep breathing on perioperative pain and anxiety. This study sought to determine the effect of short-term deep breathing exercises on perioperative anxiety and pain in pediatric patients and their parents. DESIGN: A randomized controlled trial was conducted in the Department of Orthopaedic Surgery where pediatric patients about to undergo surgery were allocated to a control group or a deep breathing group. In the intervention group, patients and their main guardian were guided to practice 10 minutes of deep breathing exercises twice a day for 3 to 4 days prior to surgery. Perioperative anxiety and pain were measured for both the children and parents as outcome indicators. METHODS: Perioperative anxiety was measured using the modified Yale Preoperative Anxiety Scale-Short Form (mYPAS-SF) and state anxiety was measured using the State-Trait Anxiety Inventory (STAI). Patients reported their pain levels daily using the Wong-Baker FACES Pain Rating Scale. The following cutoffs were determined as high levels of anxiety: STAI (adult) > 44, STAI (child) > 36, and mYPAS-SF ≥ 30. FINDINGS: No significant differences were found in the STAI, mYPAS-SF, and Wong-Baker FACES Pain Rating Scale scores of the patients between the intervention and control group. Overall statistics showed that parents had significantly higher postoperative state anxiety levels toward female children (44.93 ± 9.01) compared to male children (40.18 ± 9.89). Preoperative and postoperative parental state anxiety levels were correlated with the child's postoperative anxiety. Furthermore, children's postoperative state anxiety was slightly correlated with postoperative pain. CONCLUSIONS: Short-term use of our deep breathing exercises was ineffective in reducing incidences of perioperative pain and anxiety in pediatric orthopedic patients. A longer period of deep breathing administration may be required for the intervention to be effective. Parental anxiety may have an effect on anxiety levels in children, and postoperative parental anxiety may be affected by the gender of the child.

Effect of Breathing Exercise During Peripheral Venous Catheterization on Pain, Anxiety, and Patient Satisfaction: A Randomized Controlled Trial.

PURPOSE: This study was carried out to determine the effect of a breathing exercise during peripheral venous cathetererization on pain, anxiety, and patient satisfaction. DESIGN: Randomized Controlled Study. METHODS: The study was completed with a total of 130 individuals. Individuals in the intervention group performed diaphragmatic breathing exercises during catheterization. FINDINGS: The mean pain, anxiety, and satisfaction scores of the individuals in the intervention group were 0.29 ± 0.70, 3.18 ± 2.29, and 7.66 ± 2.20, respectively. In the control group, the mean pain score was 1.30 ± 1.47, the anxiety score was 4.35 ± 2.42, and the satisfaction score was 4.87 ± 1.63. The pain and anxiety levels of the individuals in the intervention group were lower and the satisfaction scores were higher than the control group. CONCLUSIONS: Breathing exercises reduced individuals' pain and anxiety levels and increased individuals' satisfaction. In addition, it reduced the application time, pulse rate, and blood pressure.

The effect of music therapy and breathing exercise on anxiety and pain in patients undergoing coronary angiography: A randomized controlled study.

BACKGROUND: For over 50 years, music therapy and breathing exercises have been widely utilized as interventions to help individuals cope with fatigue, stress and pain globally. AIM: To analyse the effects of music and breathing exercises on anxiety and pain in patients undergoing coronary angiography. STUDY DESIGN: This is a single-blind, randomized controlled trial. The sample comprised 165 patients: 55 in the control group, 55 in the breathing exercise group and 55 in the music therapy group. Patients in the music group listened to music during angiography, those in the breathing exercise group practised exercises 30 min before the procedure and the control group received standard treatment. Anxiety levels were assessed before and after the procedure, and pain levels were measured post-procedure. The Consolidated Standards of Reporting Trials (CONSORT) checklist for reporting randomized trials was used to guide reporting. RESULTS: Anxiety scores rose significantly in the control group from 33.9 ± 4.2 pre-angiography to 37.7 ± 4.9 post-angiography. Conversely, the breathing group's anxiety scores decreased from 34.3 ± 3.5 before angiography to 31.7 ± 1.5 after angiography, and the music group exhibited a reduction from 32.3 ± 3.6 to 30.8 ± 1.6. Post-angiography, the control group reported a mean pain score of 64 ± 0.8 mm, while the breathing and music groups had significantly lower scores of 35 ± 0.6 and 29 ± 0.8 mm, respectively. Statistical analysis showed a highly significant difference in pain scores between the intervention and control groups. CONCLUSIONS: This study provides support for the beneficial effects of employing breathing exercises and music in alleviating pain and anxiety during coronary angiography procedures. RELEVANCE TO CLINICAL PRACTICE: Integrating these findings into clinical practice could be significant for improving patients' pain experiences and anxiety, enhancing the tolerance of invasive medical procedures.

The Efficiency of Respiratory Exercises in Rehabilitation of Low Back Pain: A Systematic Review and Meta-Analysis.

BACKGROUND: Low back pain (LBP) is a common musculoskeletal disorder, and respiratory exercise is considered a nonsurgical management method. Therefore, this systematic review and meta-analysis aims to estimate the results of randomized controlled trials on the effect of respiratory training in reducing LBP and its dose relationship. METHODS: The present study was conducted from January 2020 to January 2022, following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines (2020). Relevant studies were searched in multiple databases including PubMed, Web of Science, the Cochrane Library, EBSCO, Scopus, ScienceDirect, Wan Fang and China Knowledge Network, ClinicalTrials.gov, and Google Scholar, using a combination of MeSH/Emtree terms and free-text words. The heterogeneity of the studies was assessed using the I2 statistic. RESULTS: A total of 14 publications were included in the meta-analysis, with a total sample size of 698 individuals, aged 60-80 years. Respiratory exercise was effective in relieving LBP (standardized mean difference = -0.87, P < .00001) and improving physical disability (standardized mean difference = -0.79, P < .00001). The type of breathing and the total duration of breathing exercises were found to be the source of heterogeneity in this study by subgroup analysis. Subgroup analysis revealed that the most significant effect sizes of breathing resistance exercise to reduce LBP and the most significant effect sizes of breathing relaxation techniques to alleviate physical disability were performed 3 to 5 times per week and period >4 weeks. Respiratory exercise reducing LBP and improving functional disability was most effective when the total duration of the intervention was >500 minutes. Funnel plots showed that the results of the 2 overall studies were reliable without publication bias. CONCLUSIONS: Respiratory exercise can effectively reduce LBP and improve physical disability. Therefore, these exercises can be regarded as a part of a LBP management plan. We recommend an exercise program with 30 to 50 minutes, 3 to 5 times per week, and >4 weeks of breathing resistance exercise program as the most effective for treating LBP.

Protocol of identical exercise programs with and without specific breathing techniques for the treatment of chronic non-specific low back pain: randomized feasibility trial with two-month follow-up.

BACKGROUND: Chronic low back pain (CLBP) is a leading cause of disability globally. Exercise therapies are one of the commonly prescribed treatment options for CLBP. The specific exercise therapies for CLBP most commonly target movement dysfunction, but seldom brain-based pain modulation. Exercise therapies with specific breathing techniques (SBTs) have been shown to influence and enhance brain-based structural and functional pain modulation. AIMS AND OBJECTIVES: To assess the feasibility of the SBTs protocol, eligibility criteria, randomization, and dropout rates. To quantify the changes in patient outcome measures and choose the most relevant measure for larger-scale study. To quantify self-adherence levels to home exercise and monitor and record possible pain medication and other treatment modality usage, and adverse events during exercise. DESIGN: A parallel randomised analyst-blinded feasibility trial with two-month follow-up. OUTCOME MEASURES: Feasibility related to aims and objectives. Multiple pain- and health-related patient-reported outcome measures of pain intensity, disability, central sensitization, anxiety, kinesiophobia, catastrophising, self-efficacy, sleep quality, quality of life, and health and well-being status. Exercise adherence, pain medication and other treatment modality usage, and possible adverse events related to exercises will be monitored and recorded. METHODS: Thirty participants will be randomized to movement control exercise with SBTs (15 subjects in experimental group) or movement control exercise without SBTs (15 subjects in control group) in private chiropractic practice setting with two-month follow-up. Trial registration number; NCT05268822. DISCUSSION: The clinical difference in effectiveness between practically identical exercise programs in uniform study settings with or without SBTs has not been studied before. This study aims to inform feasibility and help determine whether progression to a full-scale trial is worthwhile.

The effects of Kinesio taping and breathing exercises on pain management after gynaecological abdominal surgery: A randomized controlled study.

AIM: This study aimed to evaluate the effects of Kinesio taping and breathing exercises on pain management after gynaecological abdominal surgery. METHODS: This randomized controlled study was conducted with 132 participants at a public hospital between June 2017 and 2018. The Kinesio taping method was applied once, immediately after the surgery during the hospital stay and breathing exercises were performed three times a day for 30 min on the first, second and third post-operative days. RESULTS: The median age of the women was 47 years. The mean body mass index was 27.6 ± 5.0 kg/m2 . When the intervention and control groups were compared, the level of women's pain in the Kinesio taping group was significantly reduced. There was also a statistically significant difference in terms of the passage of gas and defecation time and wound healing in groups with Kinesio taping. CONCLUSIONS: Kinesio taping has been shown to be an effective intervention in the management of acute pain after surgery. The results of this study suggest that future studies may be indicated to study taping in other surgical conditions.

Effect of alternate nostril breathing exercise on autonomic functions, ocular hypertension, and quality of life in elderly with systemic hypertension and high-tension primary open-angle glaucoma.

Investigating the response of ocular hypertension and quality of life to a 4-week alternate-nostril breathing exercise (ANBE) in older adults with systemic hypertension (SH) and high-tension form of primary open-angle glaucoma (HTF-POAG) was our aim. Sixty older adults with SH and HTF-POAG were randomly assigned to the ANBE group (n=30, received morning and evening 30 min sessions of daily ANBE) or the control (waitlist) group (n=30). Right-eye intraocular pressure (IOP), left-eye IOP, blood pressure, short-form-36 survey (SF36S), rates of respiration and radial-artery pulsation, hospital anxiety and depression scale (depression subscale abbreviated as HADS-D and anxiety subscale abbreviated as HADS-A), and glaucoma quality-of-life 15-item questionnaire (GQoL-15) were assessed. All measurements were improved in the ANBE group only. In conclusion, a 4-week ANBE could be an adjunctive modality to improve HADS-D, rates of respiration and radial-artery pulsation, HADS-A, blood pressure, IOP, GQol-15, and SF36S in older adults SH and HTF-POAG.

Effects of breathing exercise techniques on the pain and anxiety of burn patients: A systematic review and meta-analysis.

This systematic review and meta-analysis aim to summarise the effect of breathing exercise techniques (BET) on the pain and anxiety of burn patients during burn care. A systematic search was performed on international electronic databases such as Scopus, PubMed, and Web of Science, as well as on Iranian electronic databases such as Iranmedex and Scientific Information Database (SID) with keywords extracted from Medical Subject Headings such as 'Burns', 'Bandages', 'Pain', 'Pain management', 'Anxiety', 'Breathing', and 'Breathing exercise', which were performed from the earliest to 4 April 2022. The Joanna Briggs Institute (JBI) critical appraisal checklist assessed the quality of randomised control trials (RCTs) and quasi-experimental studies. The current meta-analysis was performed using STATA V.14.0 software. A 95% confidence interval (CI) was used to determine significance levels. Random effect model was used to calculate the weighted mean difference (WMD). A total of 469 burn patients participated in 10 studies. Exactly 58.60% of burn patients were male, and the number of people in the intervention and control groups was equal. The mean age of burn patients was 32.84 (SD = 10.39). Exactly 78.05% of patients had second-degree burns. The mean study duration was 19 weeks. Results of analysis of RCT studies showed BET decreased insignificantly pain severity (WMD: -1.17, 95%CI: -2.54 to 0.21, Z = 1.66, P = .096, I2 :97.1%) in the intervention group than control group. However, the results of non-RCTs studies indicated BET significantly decreased pain (WMD: -1.38, 95%CI: -2.16 to -0.61, Z = 3.49, P < .001, I2 :88.4%) and anxiety (WMD: -4.91, 95%CI: -9.35 to -0.47, Z = 2.71, P = .03 0.001, I2 :88.4%) in the intervention group than control group. Overall, the results of RCTs found BET intervention decreased pain in the intervention group when compared with the control group; however, it was statistically insignificant. Also, results of non-RCT studies showed intervention of BET significantly decreased pain and anxiety in burns patients. More RCTs studies are required for better judgement of the effectiveness of BET intervention in clinical settings.

The effectiveness of skilled breathing and relaxation techniques during antenatal education on maternal and neonatal outcomes: a systematic review.

BACKGROUND: Several studies have investigated the relationship between antenatal education classes and pregnancy outcomes. These studies have shown positive effects on mothers, such as a lower epidural rate in the intervention groups. However, until now, the impact on outcomes for mothers and newborns of antenatal education classes that focus on breathing and relaxation techniques has not been examined. AIM: Investigate the effects of skilled breathing and relaxation techniques provided in antenatal education classes on maternal and neonatal birth outcomes. METHODS: The protocol for this study was registered with PROSPERO (ID: CRD42020192289). A systematic literature search was undertaken and completed in January 2022, using the databases MEDLINE, CINAHL, clinicalTrials.gov, Cochrane Library, Embase and MIDIRS according to a priori formulated PICO criteria: population (pregnant women), intervention (antenatal education classes with integrated breathing and relaxation techniques), comparison (antenatal education classes that do not include skilled breathing and relaxation techniques), and outcome (maternal and neonatal outcomes). The quality of the studies was assessed by two reviewers using the standardised instruments RoB 2 and ROBINS-I. RESULTS: Ten studies were included in this review, nine randomised controlled trials and one quasi-experimental study. The results indicate that skilled breathing and relaxation techniques may positively influence self-efficacy, the need for pharmacological support, specifically the use of epidural anaesthesia, and the memory of labour pain. No effects were found in relation to predefined neonatal outcomes. The quality of evidence on maternal and neonatal outcomes is inconsistent across studies, as different antenatal education classes with varying interventions, including breathing and relaxation techniques, were offered in the studies. CONCLUSIONS: Women who attended an antenatal education class with breathing and relaxation techniques appear to benefit from the intervention. This applies to the practical implementation and use of breathing and relaxation techniques during labour, increased self-confidence and self-efficacy, and a increased feeling of being in control during labour. This demonstrates the importance of information provision and a focus on breathing and relaxation techniques in antenatal education.

Vagus nerve stimulation for the treatment of epilepsy: things to note on the protocols, the effects and the mechanisms of action.

Epilepsy is a chronic brain disorder that is characterized by repetitive un-triggered seizures that occur severally within 24 h or more. Non-pharmacological methods for the management of epilepsy were discussed. The non-pharmacological methods include the vagus nerve stimulation (VNS) which is subdivided into invasive and non-invasive techniques. For the non-invasive techniques, the auricular VNS, stimulation of the cervical branch of vagus nerve in the neck, manual massage of the neck, and respiratory vagal nerve stimulation were discussed. Similarly, the stimulation parameters used and the mechanisms of actions through which VNS improves seizures were also discussed. Use of VNS to reduce seizure frequency has come a long way. However, considering the cost and side effects of the invasive method, non-invasive techniques should be given a renewed attention. In particular, respiratory vagal nerve stimulation should be considered. In doing this, the patients should for instance carry out slow-deep breathing exercise 6 to 8 times every 3 h during the waking hours. Slow-deep breathing can be carried out by the patients on their own; therefore this can serve as a form of self-management.HIGHLIGHTSEpilepsy can interfere with the patients' ability to carry out their daily activities and ultimately affect their quality of life.Medications are used to manage epilepsy; but they often have their serious side effects.Vagus nerve stimulation (VNS) is gaining ground especially in the management of refractory epilepsy.The VNS is administered through either the invasive or the non-invasive methodsThe invasive method of VNS like the medication has potential side effects, and can be costly.The non-invasive method includes auricular VNS, stimulation of the neck muscles and skin and respiratory vagal nerve stimulation via slow-deep breathing exercises.The respiratory vagal nerve stimulation via slow-deep breathing exercises seems easy to administer even by the patients themselves.Consequently, it is our opinion that patients with epilepsy be made to carry out slow-deep breathing exercise 6-8 times every 3 h during the waking hours.

Effects of Preoperative Breathing Exercise on Postoperative Outcomes for Patients With Lung Cancer Undergoing Curative Intent Lung Resection: A Meta-analysis.

OBJECTIVE: To determine the benefits of preoperative breathing exercises on hospital length of stay (LOS), pneumonia, postoperative pulmonary complications (PPC), 6-minute walk distance (6MWD), forced expiratory volume in 1 second (FEV1), and health-related quality of life (HRQOL) in patients undergoing surgical lung cancer resection. DATA SOURCES: PubMed, EMBASE, Web of Science Core Collection, and Cochrane Central Register of Controlled Trials were comprehensively searched from inception to March 2021. STUDY SELECTION: Only studies including preoperative inspiratory muscle training (IMT) and/or breathing exercises compared with a nontraining control group were included. The meta-analysis was done using Cochrane software for multiple variables including LOS, pneumonia, PPC, 6MWD, FEV1, mortality, and HRQOL. DATA EXTRACTION: Two authors extracted the data of the selected studies. The primary outcomes were LOS and PPC. DATA SYNTHESIS: A total of 10 studies were included in this meta-analysis, 8 of which had both IMT and aerobic exercise. Pooled data for patients who performed preoperative breathing exercises, compared with controls, demonstrated a decrease in LOS with a pooled mean difference of -3.44 days (95% confidence interval [CI], -4.14 to -2.75; P<.01). Subgroup analysis also demonstrated that LOS was further reduced when breathing exercises were combined with aerobic exercise (χ2, 4.85; P=.03). Preoperative breathing exercises reduce pneumonia and PPCs with an odds ratio of 0.37 (95% CI, 0.18-0.75; P<.01) and 0.37 (95% CI, 0.21-0.65; P<.01), respectively. An increase in 6MWD of 20.2 meters was noted in those performing breathing exercises (95% CI, 9.12-31.21; P<.01). No significant differences were noted in FEV1, mortality, or HRQOL. CONCLUSIONS: Preoperative breathing exercises reduced LOS, PPC, and pneumonia and potentially improved 6MWD in patients undergoing surgical lung cancer resection. Breathing exercises in combination with aerobic exercise yielded greater reductions in LOS. Randomized controlled trials are needed to test the feasibility of introducing a preoperative breathing exercise program in this patient population.

Breathing Exercise Called the Maximal Abdominal Contraction Maneuver.

Background and objectives: The maximal abdominal contraction maneuver (MACM) was designed as an effective and efficient breathing exercise to increase the stability of the spinal joint. However, it has not been determined whether MACM is more effective and efficient than the maximal expiration method. Thus, the present study was undertaken to investigate whole abdominal muscle thickness changes after MACM. Materials and Methods: Thirty healthy subjects (17 males and 13 females) participated in this study. An experimental comparison between MACM and the maximal expiration task was conducted by measuring the change of abdominal muscle thickness such as the transverse abdominis (TrA), internal oblique (IO), external oblique (EO) and rectus abdominis (RA) using ultrasound images. Results: The results indicated that MACM resulted in significantly greater muscle thickness increases of the TrA and RA than the maximal expiration exercise (p < 0.05). Conclusion: MACM provided better exercise than the maximal expiration exercise in terms of increasing spine stability, at least from a co-contraction perspective.

Effects of inspiratory muscle-training intensity on cardiovascular control in amateur cyclists.

Chronic effects of inspiratory muscle training (IMT) on autonomic function and baroreflex regulation are poorly studied. This study aims at evaluating chronic effects of different IMT intensities on cardiovascular control in amateur cyclists. A longitudinal, randomized, controlled blind study was performed on 30 recreational male cyclists undergoing IMT for 11 wk. Participants were randomly allocated into sham-trained group (SHAM, n = 9), trained group at 60% of the maximal inspiratory pressure (MIP60, n = 10), and trained group at critical inspiratory pressure (CIP, n = 11). Electrocardiogram, finger arterial pressure, and respiratory movements were recorded before (PRE) and after (POST) training at rest in supine position (REST) and during active standing (STAND). From the beat-to-beat series of heart period (HP) and systolic arterial pressure (SAP), we computed time domain markers, frequency domain indexes in the low frequency (0.04-0.15 Hz) and high frequency (HF, 0.15-0.4 Hz) bands, an entropy-based complexity index (CI), and baroreflex markers estimated from spontaneous HP-SAP sequences. Compared with SHAM, the positive effect of MIP60 over the HP series led to the HF power increase during REST (PRE: 521.2 ± 447.5 ms2; POST: 1,161 ± 878.9 ms2) and the CI rise during STAND (PRE: 0.82 ± 0.18; POST: 0.97 ± 0.13). Conversely, the negative effect of CIP took the form of the decreased HP mean during STAND (PRE: 791 ± 71 ms; POST: 737 ± 95 ms). No effect of IMT was visible over SAP and baroreflex markers. These findings suggest that moderate-intensity IMT might be beneficial when the goal is to limit cardiac sympathetic hyperactivity at REST and/or in response to STAND.

Effects of breathing exercises on resting metabolic rate and maximal oxygen uptake.

[Purpose] The aim of the present study is to examine effects of diaphragm breathing exercise and feedback breathing exercise on maximal oxygen uptake and resting metabolic rate. [Participants and Methods] Thirty-eight healthy participants were randomly assigned to two groups; the diaphragm breathing exercise group and the feedback breathing exercise group. The diaphragm breathing exercise group was asked to perform diaphragm respiration, and the feedback breathing exercise group was asked to breathe with feedback breathing device. Maximal oxygen uptake and resting metabolic rate were measured before and after two breathing exercises. [Results] Significant difference was found in maximal oxygen uptake before and after two breathing exercises. There was also significant difference in resting metabolic rate before and after diaphragm breathing exercise. However, significant difference was not found in resting metabolic rate before and after feedback breathing exercise. There were not significant between-group differences in both maximal oxygen uptake and resting metabolic rate. [Conclusion] Diaphragm breathing exercise and feedback breathing exercise could influence maximal oxygen uptake. Diaphragm breathing exercise could influence resting metabolic rate, but feedback breathing exercise could not.

Comparison of two instructions for deep breathing exercise: non-specific and diaphragmatic breathing.

[Purpose] Breathing exercises are frequently prescribed to reduce pulmonary complications after abdominal and thoracic surgery. Appropriate instructions ensuring the integrity of the self-exercise are important. This study compared the effects of two instructions, focusing on non-specific breathing (NB) and diaphragmatic breathing (DB) patterns, respectively, on the ventilatory efficiency and work of breathing. [Subjects and Methods] The participants were healthy men (n=15) and women (n=15). Ventilatory parameters, heart rate, and autonomic nervous system activity were measured during natural and deep breathing phases performed under the two instructions (NB and DB), with the deep breathing phase following the natural breathing phase. [Results] For both men and women, ventilatory efficiency was increased during deep breathing relative to natural breathing, regardless of the instructions. In women, the increment in ventilatory efficiency during deep breathing was greater under NB compared to that under DB. The work of breathing decreased during deep breathing in women under both instructions, but did not change in men under DB. [Conclusion] Under NB instruction, deep breathing elicits similar or greater effects on ventilatory efficiency compared to that under DB instruction.

Effects of diaphragm breathing exercise and feedback breathing exercise on pulmonary function in healthy adults.

[Purpose] The present study investigated effects of diaphragm breathing exercise and feedback breathing exercise on respiratory function. [Subjects and Methods] Thirty-one subjects were randomly assigned to two groups; the feedback breathing exercise group and the maneuver-diaphragm exercise group. The feedback breathing exercise group was asked to breathe with feedback breathing device, and the maneuver-diaphragm exercise group was asked to perform diaphragm respiration. Respiratory function was evaluated when a subject sat on a chair comfortably. [Results] There was a significant difference in the functional vital capacity and slow vital capacity before and after all breathing exercises. There was a significant between-group difference in functional vital capacity. However, no between-group difference was found in slow vital capacity. [Conclusion] Diaphragm breathing exercise and feedback breathing exercise can affect respiratory function.

Effects of combined chest expansion and breathing exercises in a patient with sternal pain.

[Purpose] To investigate the effects of combined chest expansion and breathing exercises in a patient with sternal pain. [Subject and Methods] The study subject was a 36-year-old female employed as a babysitter who complained of sternal pain at the T1-4 level. The subject performed the combined chest expansion and breathing exercises. [Results] The thoracic kyphosis angle after combined chest expansion and breathing exercises decreased compared with the initial angle. The sternal pain after these exercises also decreased compared with the initial value. [Conclusion] This study suggests that combined chest expansion and breathing exercises can be effective in treating sternal pain.