RELATIONSHIP BETWEEN NIGHT-TIME DYSPNEA EPISODES AND HEART RATE VARIABILITYViews:362
Purpose: We wanted to assess the values of expected night-time and day-time variability of the heart rate, in the presence of dyspnea episodes during night-time, recorded by a Holter monitor.
Objective: Our aim was to investigate whether nocturnal breathing disorders affect the HRV indexes.
Methods: 40 patients participated in our survey. 20 of them experienced episodes of night-time breathing difficulty, and the control group consisted of 20 participants in whose case there were no episodes of night-time breathing difficulty. We were examining the domains of time and frequency of heart rate variability, using day-time and night-time values recorded by a 24-hour Schiller Medilog Holter monitor. We evaluated the distribution of the parameters with a continuous codomain, their typical distribution and expected values on histograms, and summarized them in a table. For the examination of the difference in averages the Two-Sample T- Test was used, where p<0.05.
Results: The vegetative equilibrium ratio and the standard deviation of the R-R intervals showed a significant difference between the apnea patients and the healthy group at night. Examining the severity of apnea, we didn't find significant difference between the two groups in the mean of the time and frequency indices, however, a decrease in the values of the apnea group was observed compared to the control group.
Conclusion: Night differences in the vegetative equilibrium rate and time parameters of the apnea patients and the control group, as well as differences in the HRV index recorded by the change in the severity of the disease, draw attention to the importance of the HRV indicators with HOLTER monitors.
PHYSIOLOGICAL AND PSYCHOLOGICAL CHARACTERISTICS AMONG COMPETITIVE ROWERSViews:183
Introduction: Elite rowing athletes participated in anthropometric, psychological and physiological tests.
Aim: This study aimed to investigate the relations between the traits of sport-confidence and competitive orientation, as well as to compare state measures of sport-confidence, self-efficacy and anxiety. Furthermore, this study targeted to examine the associations of these state measures with performance, in our case the 2000m rowing ergometer run time.
Material and methods: Rowers (N=15) were subjected to anthropometric, psychological and physiological tests: max 2000 m on Rowing Ergo-test, Athletic Coping Skills Inventory-28, Competitive State Anxiety Inventory-2 and Sport Competition Anxiety Test.
Results: CSAI-self-confidence showed a statistically significant difference between genders with boys having a higher score. Overall, SCAT (anxiety) scores were low (normal anxiety) in the sample for the vast majority (12 rowers), only 3 participants showed high anxiety.
Conclusion: The psychological profile does not contribute significantly performance on 2000m Rowing Ergo-test but affects it. Girls completed the distance in a longer period of time, and cognitive anxiety was relatively greater among girls. Additionally, our study pointed out that if the physical parameters are 'inadequate,' then the psychological profile does not contribute to better performance.
CHANGES IN SPINAL RANGE OF MOTION AFTER 16 WEEKS TRAINING PROGRAM IN PUBERTAL CHILDRENViews:169
The aim of the present research was to improve the neglect behavior of pubertal children in an intervention program. Within the framework of the program, the main function of the spinal column and the strength and extensibility of the muscles responsible for posture were investigated. The participants included in the study are 7th grade children of the Neumann János Elementary School in Szombathely, Hungary, (nb=7); (ng=10). The Idiag M360 Spinal Mouse was used to investigate the physiological curvatures and main function of the spinal column before and after the program. The device was used to examine the children's spines in standing, bending forward and again in a standing position after the Matthiass test was performed. Pre-intervention (1) and post-intervention (2) data showed significant decreases in all assessed characteristics and similar increases in sacrum to hip ratio (Sac/Hip) (9.83±4.36 - 21.63±4.39); p<0.000. The greatest change was found in the Th11/12 dorsal vertebral body angles (4.50±2.05 - -0.30±0.25); p<0.000. As a result of the postural improvement program, the degree of pelvic tilt and, in parallel, the physiological curvature of lumbar lordosis was reduced to within the age-specific reference values.