Effects of Dosed Physical Load on a Bicycle Ergometer on Electrocardiographic Parameters

Dr. Abhimanyu Sharma, Dr. Dinara Silantyeva, Navkiran Kaur

Abstract: Physical activity induces acute and chronic adaptations in cardiovascular function, which can be objectively evaluated using electrocardiography (ECG). The objective was to investigate changes in heart rate (HR) and R-R interval following primary and repeated bouts of dosed physical load using a bicycle ergometer. Four healthy male adults (22-27 years) underwent ECG recording at rest, immediately after a 10-minute cycling bout, after 5 minutes of recovery, and again following a second cycling bout after a 30-minute rest. Mean HR and R-R intervals were analysed using descriptive statistics and significance testing (p < .05). HR increased significantly after the first physical load and demonstrated a comparatively attenuated response during the second load, suggesting early cardiovascular adaptation. The R-R interval decreased with exercise and gradually returned toward baseline during recovery. Repeated aerobic physical load results in measurable autonomic and cardiac adaptations, reflected by moderated HR response and recovery of R-R intervals. These findings support the role of regular aerobic activity in promoting cardiovascular efficiency.

Keywords: electrocardiography, heart rate, R-R interval, bicycle ergometer, physical activity

How to Cite?: Dr. Abhimanyu Sharma, Dr. Dinara Silantyeva, Navkiran Kaur, "Effects of Dosed Physical Load on a Bicycle Ergometer on Electrocardiographic Parameters", Volume 15 Issue 2, February 2026, International Journal of Science and Research (IJSR), Pages: 313-315, https://www.ijsr.net/getabstract.php?paperid=SR26202151554, DOI: https://dx.doi.org/10.21275/SR26202151554