The impact of fatigue and different environmental conditions on heart rate responses and shooting accuracy during laser run event in elite modern pentathletes

The findings revealed that HR was significantly affected by different environmental conditions and fatigue, but this was not accompanied by shooting accuracy, and significantly higher HR was achieved in unsuccessful shots compared to successful shots. We recommend that pentathletes perform running-shooting training in different weather and field conditions before the competition to adapt to different environments, especially during the competition seasons, instead of shooting in a polygon or laboratory.