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American College of Sports Medicine, “Aerobic Exercise Intensity,” diakses Juli 2026.
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American College of Sports Medicine, “Exercising in Hot and Cold Environments,” diakses Juli 2026.
Brendon P. McDermott et al., “National Athletic Trainers’ Association Position Statement: Fluid Replacement for the Physically Active,” Journal of Athletic Training 52, no. 9 (2017): 877–895, https://doi.org/10.4085/1062-6050-52.9.02.
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American Heart Association, “All About Heart Rate,” diakses Juli 2026.
American Heart Association, “Heart Attack, Stroke and Cardiac Arrest Symptoms,” diakses Juli 2026.