Person: PELVAN, SERDAR ORKUN
Loading...
Email Address
Birth Date
Research Projects
Organizational Units
Job Title
Last Name
PELVAN
First Name
SERDAR ORKUN
Name
4 results
Search Results
Now showing 1 - 4 of 4
Publication Open Access The effects of performances in canoe, kayak and rowing on muscle oxygen saturation: Experimental study(2023-01-01) PELVAN, SERDAR ORKUN; AKBAŞ, SAVAŞ; TOPAL M., PELVAN S. O., AKBAŞ S.Objective: The aim of this study is to compare the intramuscular oxygen saturation results during the short and long distance performances of canoe, kayak and rowing athletes. Material and Methods: 30 male international level and licenced athletes (8 canoeists, 11 kayakers and 11 rowers) are participate to this study; age 20.53±3.23 year, height 181.70±7.90 cm, body weight 78.60±11.22 kg and body mass index 23.73±2.37. The intramuscular oxygen saturation status of athletes were measured using the near infrared spectroscopy technology for 40 second sprint and 4 minutes tests performed on the land with branch-specific ergometers. Data collecting processes were recorded as 5 minute rest, 40 second sprint, 10 minute rest, 4 minute distance performances and 5 minute recovery, in total nearly 25 minute. Results: Comparing the intramuscular oxygen saturation values of canoe, kayak and rowing athletes, no significant difference was found in the decrement rate to minimum, during 40 second sprint for biceps brachii and vastus lateralis (p>0.05). As we compare to 4 minute performances, a significant difference was found in both muscle groups for all three branches. It was seen that the difference was between rowing and canoe athletes, and lower intramuscular oxygen saturation values were found in canoeists compared to rowers (p<0.05). Conclusion: The results show that intramuscular oxygen saturation it can be said that many factors effect such as differences between branches, posture position, cardiovascular differences between athletes, using of body parts, and number of stroke per minute.Publication Metadata only Performans takibinde yakın kızılaltı spektroskopi ve kas içi oksijen doygunluğu(2023-11-14) AKBAŞ, SAVAŞ; PELVAN, SERDAR ORKUN; Akbaş S., Pelvan S. O.Publication Metadata only Muscle blood content and muscle oxygen saturation in response to head down and head up tilt(PERGAMON-ELSEVIER SCIENCE LTD, 2020) DURU, ADİL DENİZ; Cotuk, Hasan Birol; Duru, Adil Deniz; Pelvan, Orkun; Akbas, SavasAs microgravity alters blood distribution and flow in muscle tissue, in the present study, blood content and oxygen saturation in extremity muscles were evaluated by an analogous body tilting model. For this purpose, the supine resting posture was compared with successive head down tilt (HDT) and head up tilt (HUT) in ten well trained male volunteers. Muscle oxygen saturation and total hemoglobin content were measured using near infrared spectroscopy sensors attached on the gastrocnemius, vastus lateralis and biceps brachii muscles of each body side. Simultaneously, continuous and noninvasive recordings of arterial blood pressure and heart rate variability were performed. The test protocol consisted of the following stages (5 min each): supine, 6 degrees HDT, 15 degrees HDT, 30 degrees HDT, supine, 6 degrees HUT, 15 degrees HUT, and 30 degrees HUT postures in successive order. The evolution of the rhythmic components in the recorded time series were analyzed by wavelet based multiscale time-frequency distributions, and synchronization between measurement sites by wavelet phase synchronization indexing. A support vector machine (SVM) algorithm was employed for classification of posture in relation to muscle total hemoglobin content or oxygen saturation. Increasing or decreasing gravitational impact due to the posture changes resulted in significant increases or decreases of total hemoglobin content in the muscles, but showed no linear relation to muscle oxygen saturation. This effect was stronger pronounced as the respective extremity part was located more centrifugal to the body tilting axis. Blood pressure and heart rate did not influence muscle oxygen saturation. The two major rhythmic components in the cardiovascular system, the 0.1 Hz and respiratory rhythm, were only weakly displayed in the muscle oxygen saturation time series. Oscillations of muscle oxygen saturation in the very low frequency band displayed left-right synchrony. SVM was able to classify postural changes of muscle blood content with good accuracy but not those of muscle oxygen saturation. These results imply that muscle oxygen saturation during acute postural changes may be mainly regulated by neural drive to the micro-vascular circulation and not by systemic cardiovascular kinetics.Publication Open Access The Effect of Graded Running Protocols On Peak Oxygen Consumption and Intramuscular Oxygen Saturation(2024-06-01) PELVAN, SERDAR ORKUN; AKBAŞ, SAVAŞ; ÇOTUK, HASAN BİROL; PELVAN S. O., AKBAŞ S., ÇOTUK H. B.Aim: The aim of this investigation was to examine the impact of two different running protocols on peak oxygen consumption (VO2max) and regional intramuscular oxygen saturation (SmO2) levels in one highly trained runner. Methods: VO2 and SmO2 were measured simultaneously during a gradually ascending running protocol and a Bruce protocol. VO2 was measured by breath-by-breath spiroergometer gas analysis system (ZAN®, Germany), and SmO2 was measured from both gastrocnemius muscles using a wireless near-infrared spectroscopy device (BSXinsight®, USA). The correlation between VO2 and SmO2 data was determined by Pearson correlation coefficients over the test stage mean values. The change of VO2 and SmO2 within each stage was determined by firstdegree polynomials. Results: Peak VO2 in the Bruce protocol (4640 ml/min) was higher than peak VO2 in the running protocol (4390 ml/min), but no difference was observed in end-test SmO2 decreases. There were highly significant negative correlations between VO2 values and SmO2 values (r=- 0.960-0.990, p<0.001). SmO2 values measured in the right and left gastrocnemius muscle decreased similarly in both protocols (r=0.993, r=0.987, p<0.001). Conclusion: Central and peripheral physiological processes of oxygen consumption are not always congruent, and the test protocol exert an influence due to the complex interplay of physiological and biomechanical factors.