Brief review: Ergospirometry in patients with obstructive sleep apnea syndrome

This brief review summarizes the available literature on the intersection of obstructive sleep apnea syndrome (OSAS) and ergospirometry. Ergospirometry provides an assessment of integrative exercise responses involving pulmonary, cardiovascular, neuropsychological, and skeletal muscle systems, which are not adequately reflected through the measurement of individual organ system functions. Sleep disorders, including OSAS, often exacerbate problems in the operation of the autonomic nervous system, heart function, lung mechanics, anxiety, and muscle metabolism. Patients with OSAS have low aerobic capacity due to dysfunction of these systems, which often affect quality of sleep. Further research is necessary to elucidate the precise mechanisms through which ergospirometry can be useful in the assessment and early identification of patients with OSAS. © 2018 by the authors; licensee MDPI, Basel, Switzerland

The effect of physical strain on breeders patients with obstructive sleep apnea syndrome

Aim: The purpose of this study was to investigate the cardiopulmonary exercise testing (CPET) in breeders patients with obstructive sleep apnea syndrome (OSAS). Method: Thirty-two male participants (Age: 42.2 ± 7.3yrs, BMI: 29.5 ± 2.2 kg/m 2 ) underwent full overnight polysomnography (PSG) and were divided into two groups (OSAS group: n = 20 vs. Control group: n = 12). 72-hours after the PSG study, they were subjected to CPET. The Independent t-test was used to measure the differences between the groups. Pearson's correlation coefficient was used among the parameters of CPET and PSG study. Results: The results showed difference between the groups (OSAS vs. Control) during CPET in end-tidal, CO 2 pressure in the peak of the exercise (38.7 ± 3.0 vs. 35.4 ± 5.5 mmHg, p = 0.031) and mean arterial pressure (122.7 ± 10.6 vs. 113.7 ± 11.8 mmHg, p = 0.035). Correlation results showed differences between the physical strain and the polysomnography study in physical strain parameters “walking duration per day with the herd” and oxygen desaturation index during sleep (r = 0.370, p = 0.037) and minimum oxygen saturation during sleep (r=-.374, p = 0.035), in the parameter “milking duration” and apnea (r = 0.392, p = 0.048), AHI (r = 0.374, p = 0.035) and oxygen desaturation index during sleep (r = 0.434, p = 0.013). The physical strain parameter “working hours per day” wasn't related to any parameter of the polysomnography study. Conclusion: The daily physical activity may have a protective role during the course of the disease in patients with OSAS. © 2018 Elsevier B.V

The effect of exercise training on the quality of sleep in national-level adolescent finswimmers

Background: The purpose of the present study was to investigate whether the quality of sleep, in 91 national-level adolescent finswimmers, is affected by swimming style, swimming distance, and gender. Methods: Twenty-four hours before the opening of the National Championship, the participants recorded the training characteristics and answered the following two questionnaires: Pittsburgh Sleep Quality Index (PSQI) and Epworth Sleepiness Score. Athletes were allocated to groups by gender, swimming style (monofin vs. bifin) and swimming distance (≤ 200 m vs. > 200 m). The dependencies between qualitative variables were estimated by chi-square test or Cramer’s V test with modification by Fisher’s exact test with cell frequencies less than 5. Binary logistic regression was used in the multi-factor model. Results: There was a difference in the variables of PSQI “usual getting up time” and “have pain during sleep” between the two swimming distance groups (≤ 200 m vs. > 200 m). By using a multi-factor model (χ2 = 13.541, p = 0.035), the variables of PSQI “usual getting up time” and “have pain during sleep” remained independent predictors of the swimming distance (p = 0.019, OR 1.75, 95% CI 1.09–2.81). Conclusion: The athletes swimming distances > 200 m experience more episodes of pain during sleep and get up earlier than athletes swimming shorter distances. © 2019, The Author(s)