“…With regard to the devices, only four studies provided complete information on the manufacturer, sampling frequency, and body placement (wrist, chest, or upper body) [4,34,35,37]. These sensors were used during practice sessions [4,20,23,28,34,44,48,50,58,60], games [17,19,31,33,35,37,45,46,52,55,61,62], or both events [24,26,30,32,35,47,49,53,57]. Heart rate was the most commonly used method to assess physiological response, although a variety of metrics were obtained and used to measure and evaluate the internal load, including the average HR (HR Avg ), maximum HR (HR Max ), minimum HR, percent of maximum HR (%HR Max ), percent of average HR (%HR Avg ), total time, or percentage of time spent in different HR zones (2-8 zones), TRIMP B , and SHRZ.…”