Andi Ariyandy, M. Aryadi Arsyad, Andi Rizky Arbaim Hasyar, Meutiah Mutmainnah, Nukhrawi Nawir, Ayun Dwi Astuti, Muhammad Iqbal Basri, Rinvil Renaldi, Mochammad Erwin Rachman, Andi Ainun Zulkiah Surur, Wahyu Usman, Fadliana Utami
Circadian rhythms are internal mechanisms that regulate various aspects of the human body’s physiology and behaviour that are influenced by activity, physicality, and change time in 24 hours. This study aims to compare oxidant levels and hormonal levels based on differences in training times, namely morning and evening, in badminton athletes. This research involved 44 badminton athletes using a purposive sampling technique who were divided into a morning group (n = 22) and an evening group (n = 22). Melatonin levels were measured using the Elabscience Kit (No. E-ELH2016) and malondialdehyde (MDA) levels using spectrophotometry. All research procedures have received ethical approval from the Hasanuddin University Medical Faculty Ethics Commission (Number: 377/UN4.6.4.5.31/PP36/2023). The results of this study indicate that the athlete’s melatonin value in the morning was 76.71 ± (29.05–247.45) higher than in the evening 80.43 ± (50.83–155.24) Meanwhile, the athlete’s MDA value in the evening was 2.08 ± (0.74–4.57) higher compared to the MDA in the morning of 1.09 ± (0.33–3.71). Meanwhile, based on the insomnia value for evening training, a higher value was obtained compared to morning training, namely 9.50 ± (3–11). However, there was no significant difference in stress levels. The results of the study showed that badminton athletes who trained at night tended to experience sleep disturbances (insomnia) and increased oxidant levels, while hormonal levels, especially melatonin, were higher in athletes who trained in the morning. © Faculty of Education. University of Alicante.
Department of Physiology, Faculty of Medicine, Hasanuddin University, South Sulawesi, Indonesia; Department of Physiotherapy, Faculty of Nursing, Hasanuddin University, South Sulawesi, Indonesia; Department of Sport Science, Faculty of Sport Science, State University of Makassar, South Sulawesi, Indonesia; Department of Pharmacy Science, Faculty of Pharmacy, Hasanuddin University, South Sulawesi, Indonesia; Department of Neurology, Faculty of Medicine, Hasanuddin University, South Sulawesi, Indonesia; Department of Psychiatry, Faculty of Medicine, Hasanuddin University, South Sulawesi, Indonesia; Department of Physiology, Faculty of Medicine, Muslim University of Indonesia, South Sulawesi, Indonesia
