Electrolytes are one of the most important components in maintaining fluid balance, proper muscle contraction and neural activity, which are all essential for performance and overall function.
Water is drawn to concentrations of electrolytes, so in basic terms it follows wherever the electrolytes go. When athletes sweat, then they're also losing electrolytes, so when you start to replace lost fluids, athletes need to be replacing the electrolytes as well.
Therefore, to optimise performance and recovery, it is essential that hydration protocols include the consumption of adequate amounts of electrolytes. Post Weigh-In is the most important time for electrolyte consumption and should be formulated on an individual basis by your dietitian. Overall, it is recommended that athletes consume adequate electrolytes daily, with heavy emphasises post-training as part of their hydration protocol.