Beta-Endorphin Responses to Varying Exercise Intensity
Kata Kunci:
Beta- Endorphin, Exercise, High Intensity Interval TrainingAbstrak
This study aims to explore the response of beta-endorphins to variations in exercise intensity in the context of exercise physiology. Beta-endorphins, endogenous opioid peptides produced in the pituitary gland, play an important role in the regulation of pain and mood. The study involved 30 active participants who underwent an eight-week exercise program with a frequency of three times a week. The research method included measuring beta-endorphin levels before and after the exercise intervention using the ELISA technique. The results showed that at low to moderate intensities (40% and 60% VO2max), beta-endorphin levels did not increase significantly, with values of about 4.8 pmol/l and 6.3 pmol/l, while at high intensities (80% VO2max), levels increased significantly to about 16.1 pmol/l. In addition, a comparison between HIIT (High-Intensity Interval Training) and moderate aerobic exercise showed that HIIT resulted in a greater increase in endorphin release, although participants also reported discomfort during high-intensity sessions. The beta-endorphin response appears to be consistent between the sexes, but the catecholamine response shows significant differences, with higher levels in men. These findings emphasize the importance of considering gender, duration, and gender factors in research on hormonal responses to exercise, as well as its implications for long-term mental and physical health through regular physical activity.
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