Respiratory Function

The purpose of this randomized controlled trial is to investigate the effects of core training and inspiratory muscle training (IMT) on muscle oxygenation and athletic performance in youth male soccer players aged 15-18. A total of 54 healthy soccer players will be included and randomly assigned into three equal groups: the Control Group, the Core Training Group, and the Core Training + IMT Group. All interventions will be implemented for 8 weeks in addition to routine soccer training sessions. Assessments will be performed at baseline (Week 0), mid-intervention (Week 4), and post-intervention (Week 8). The primary outcome measures of the study are aerobic capacity assessed by the Yo-Yo Intermittent Recovery Test Level 1 and muscle oxygenation parameters monitored via near-infrared spectroscopy (NIRS) using a MOXY monitor. Secondary outcome measures include sprint performance, agility, dynamic balance, core muscle strength and endurance, inspiratory muscle strength, lower extremity explosive power, and soccer-specific technical performance tests. Overall, this study aims to reveal the combined effects of core training and inspiratory muscle training on muscle oxygenation, respiratory functions, aerobic capacity, and soccer performance, while explaining the underlying physiological mechanisms in youth athletes.

This randomized controlled study aims to investigate the effects of diaphragmatic breathing exercises on core stabilization muscle strength, peak expiratory flow (PEF), and chest expansion in women performing equipment-based Pilates. A total of 44 healthy women aged 20 to 50 years who regularly participate in equipment-based Pilates exercises will be recruited and randomly assigned to one of two groups. The intervention group will receive equipment-based Pilates training combined with diaphragmatic breathing exercises, while the control group will receive equipment-based Pilates training only. Both groups will participate in supervised exercise sessions twice weekly for 8 weeks. Core stabilization muscle strength, peak expiratory flow, and chest expansion measurements will be assessed before and after the intervention period. The findings of this study may contribute to a better understanding of the additional effects of diaphragmatic breathing exercises on respiratory function and core stabilization in women performing Pilates.

This prospective observational study aims to investigate the relationship between respiratory function and multidimensional athletic performance parameters in professional soccer players. The primary hypothesis of the study is that soccer players with enhanced respiratory function and superior respiratory muscle strength will exhibit optimized motor performance outcomes and shorter (faster) reactive reaction times. Investigators will evaluate respiratory muscle strength, spirometric pulmonary functions, dynamic balance, core and abdominal endurance, and reactive visuomotor reaction times during a single testing session within the competitive season.

Colorectal cancer is one of the most commonly diagnosed malignancies worldwide and a leading cause of cancer-related morbidity and mortality. Its global incidence continues to increase, with a substantial proportion of cases diagnosed at advanced stages, which adversely affects prognosis. Patients diagnosed at an early stage and treated with surgery have significantly better long-term survival outcomes. Five-year survival rates are approximately 90% for stage I disease, decreasing to around 70% in stage II and 60% in stage III, and dropping to as low as 8% in stage IV disease. Advanced age, family history, and environmental exposures are well-established risk factors for colorectal cancer. In addition, modifiable lifestyle factors-including smoking, physical inactivity, unhealthy dietary patterns, and obesity-have been shown to significantly increase the risk of disease. Although surgical resection remains the cornerstone of curative treatment in colorectal cancer, long-term outcomes are influenced not only by tumor stage but also by various patient-related factors, including comorbidities, functional capacity, and respiratory reserve. Functional status, which reflects a patient's ability to perform activities of daily living, is a key determinant of postoperative recovery and long-term outcomes. Reduced functional capacity has been associated with poorer long-term survival, diminished quality of life, and increased late morbidity. Therefore, objective preoperative assessment of functional status is considered essential for predicting long-term prognosis. Respiratory function also plays a critical role, particularly in patients undergoing abdominal surgery. Impaired pulmonary capacity increases the risk of postoperative pulmonary complications, prolongs hospital stay, and may indirectly affect long-term survival. However, studies evaluating the impact of preoperative respiratory parameters on long-term outcomes in patients with colorectal cancer remain limited. Furthermore, comprehensive analyses integrating both functional capacity and respiratory function are scarce in the current literature. Therefore, further investigation in this area is warranted. The aim of this study is to evaluate the impact of functional status and respiratory parameters on long-term clinical outcomes in patients with colorectal cancer. H0: There is no statistically significant association between functional status, respiratory parameters, and long-term clinical outcomes in patients with colorectal cancer. H1: There is a statistically significant association between functional status, respiratory parameters, and long-term clinical outcomes in patients with colorectal cancer.

Broadly, the objective of the research is to evaluate the effectiveness of a specific breathwork program (Les Mills Breath) on various physiological variables related to running performance, compared to a mindfulness control (20 minutes of guided meditation). There are three specific research questions: 1) Does daily participation in a 20-minute breathwork program improve respiratory function more than a mindfulness control intervention? 2) Does daily participation in a 20-minute breathwork program improve heart rate variability (an indicator of parasympathetic nervous system activity which is associated with enhanced exercise recovery) more than a mindfulness control intervention? 3) Does daily participation in a 20-minute breathwork program increase self-selected running speeds at relative moderate and vigorous intensities more than a mindfulness control intervention? The intended outcomes of the current research are to contribute to the field of research which has examined various forms of "respiratory training" and their effects on athletic performance, specifically running. While certain training protocols have been shown to be effective, there are issues of accessibility which persist. Methods of respiratory training/breathwork which are more easily available to recreational athletes are understudied with regards to running performance, hence the current research.

This observational study aims to evaluate the effects of different inspiratory to expiratory (I:E) ratios (1:2 vs. 1:3) during mechanical ventilation in pediatric patients undergoing dental procedures under general anesthesia. Due to behavioral challenges, dental phobia, or medical conditions, general anesthesia is often required to ensure immobility and cooperation during dental treatments in children. In the clinic where the study will be conducted, the I:E ratio is routinely adjusted approximately 20-30 minutes before the end of the procedure to facilitate a smoother transition to spontaneous breathing during emergence from anesthesia. While 1:2 is commonly used, the 1:3 ratio may improve respiratory efficiency and recovery by prolonging the expiratory phase. The study aims to compare vital signs, respiratory parameters (heart rate, blood pressure, SpO₂, EtCO₂, respiratory rate), recovery quality, and respiratory complications between the two I:E ratios. The findings aim to optimize ventilation strategies and improve patient comfort and safety during emergence from anesthesia.