Poor refuelling and rehydration from a weight cut can make a great athlete perform average, or worse have negative health implications. However, before refuelling and rehydrating to optimise performance, the task of weight making must be completed.
There are a plethora of physiological adaptations that happen during the weight making process. Some extreme measures can lead to severe implications (i.e. acute kidney damage from severe dehydration, hyponatremia from poor rehydration), as well as some not so dangerous – but can impact performance significantly.
Above is an overview of positive and negative effects associated with each method to make weight.