Examination of Heart Rate and Intramuscular Oxygen Saturation Variability in the Gradually Increasing Runnig Test

Authors : Miray İlhan, Orkun Pelvan

Pages : 278-291

View : 46 | Download : 42

Publication Date : 2025-08-30

Article Type : Research Paper

Abstract :Aim: This study aims to examine physiological responses during a gradually increasing running test by simultaneously evaluating heart rate (HR), heart rate variability (HRV), and muscle oxygen saturation (SmO2) parameters Materials and Methods: Sixteen male athletes aged between 18 and 27 years, with at least 3 years of sports experience, participated in the study. The average age was 19.25 ± 2.21 years, average height was 180±7.87 cm, average weight was 78.3±14.6 kg, and average body fat percentage was 11.8±5.85. HR, HRV, and SmO₂ values were recorded during the resting, running, and recovery phases throughout the test. The running protocol started at a speed of 10 km/h and increased by 1 km/h every minute until exhaustion. Recording continued for 5 minutes post-run. Results: During the gradually increasing running test, it was observed that heart rate (HR) increased while SmO₂ levels decreased. Throughout the recovery period after running, both measurement parameters tended to approach resting values Conclusion: These findings indicate that the joint assessment of HR, HRV, and SmO₂ is significant for a holistic analysis of the physiological responses to exercise. In performance evaluation, measurements such as heart rate (HR), heart rate variability (HRV), and intramuscular oxygen saturation (SmO₂) hold an important place alongside running tests.
Keywords : Kalp Atım Hızı, Kalp Atım Hızı Değişkenliği, Kas İçi Oksijen Doyğunluğu

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