BACKGROUND Baroreflex sensitivity (BRS) and heart rate variability (HRV) are attenuated in cardiovascular disease and can give important prognostic information. Conventional measures of BRS require expensive or invasive equipment for the beat-to-beat measure of blood pressure (BP). We examined the possibility of developing a simple protocol that would provide a relatively standardized BP stimul...

Pulmonary rehabilitation is a program that helps individuals with chronic respiratory diseases improve their physical function, quality of life, and overall well-being. The typically involves combination exercise, education, support to help patients manage symptoms health. Exercise crucial component pulmonary can cardiovascular health, increase lung reduce shortness breath. Aerobic resistance f...

The new coronavirus disease 2019 (COVID-19) pandemic is becoming a global health crisis that challenges systems around the world. clinical spectrum of COVID-19 varies from mild upper respiratory tract infections to severe pneumonia and acute distress syndrome, but there are also many patients present with an SpO2 < 90% without symptoms shortness breath. This phenomenon called happy hypoxemia...

aim and background: enuresis is known as one of the most common disorders in childhood. snoring at night and obstructive sleep apnea have been considered as probable causes, at least in some cases. thus, the importance of a breathing exercise to reduce bedwetting in children with nocturnal snoring should be noted. method and materials: this study is an experimental survey with control group. th...

BACKGROUND Heated breathing tubes were developed to improve heated humidification in continuous positive airway pressure (CPAP) therapy of patients with obstructive sleep apnea syndrome (OSAS). OBJECTIVES We wanted to investigate the influence of a heated breathing tube on patients' satisfaction with the treatment, the rate of side effects and the adherence to treatment. METHODS Eighty-eigh...

BACKGROUND We postulated that the variability of the phase shift between blood pressure and heart rate fluctuation near the frequency of 0.10 Hz might be useful in assessing autonomic circulatory control. METHODS AND RESULTS We tested this hypothesis in 4 groups of subjects: 28 young, healthy individuals; 13 elderly healthy individuals; 25 patients with coronary heart disease; and 19 patients...

Normal human breathing exhibits complex variability in both respiratory rhythm and volume. Analyzing such nonlinear fluctuations may provide clinically relevant information in patients with complex illnesses such as asthma. We compared the cycle-by-cycle fluctuations of inter-breath interval (IBI) and lung volume (LV) among healthy volunteers and patients with various types of asthma. Continuou...

The purpose of this study was to determine the relationship between recruitment of the DI and SM muscles measured as EMG signal amplitudes, the pattern of respiratory muscle recruitment measured with inductive plethysmography, and the intensity of the sensation of dyspnea, measured with 100 mm VAS. Eighteen normal subjects between the ages of 33 and 47 breathed under two conditions: normal cont...