“The Relationship between Physical Activity Level, Lactate Accumulation, and Heart Rate Variability among university students” (2026) Al-Shatrah Veterinary and Biological Sciences Journal, 2(3), pp. 80–89. Available at: https://svbsj.shu.edu.iq/index.php/svbsj/article/view/66 (Accessed: 3 October 2026).