Ask most athletes about fuel and they can recite carbohydrates per hour. Ask about fluid and the answer is usually "I drink when I'm thirsty." Thirst lags. By the time it registers, performance has already started to slip.
Why a small deficit matters
Water is where every metabolic reaction in the body happens, and it is how heat gets moved from working muscle to the skin. Lose a couple of percent of body weight in sweat and the heart works harder for the same output, perceived effort rises and coordination gets sloppier. None of that shows up as a single dramatic moment — it shows up as the last interval that felt harder than it should have.
It is not only water
Sweat carries electrolytes, sodium above all. Replacing water without sodium on a long, hot session can leave you both under-fuelled and feeling flat. A good hydration plan pairs fluid with electrolytes in proportions that match how much and how salty you sweat — which is personal, and worth testing in training rather than on race day.
A simple framework
- Before: Arrive at the start line hydrated. Sip through the day; a large volume in the final hour mostly ends up in a bathroom.
- During: Drink to a plan, not to thirst, on anything over an hour. Include sodium.
- After: Replace what you lost over the following hours, with food. Salty meals do a lot of the work.
Where an IV fits
An IV hydration drip is a fast, direct way to restore fluid and electrolytes. Athletes at The DRIPBaR most often book one:
- After a long, hot event or a heavy training block, when eating and drinking enough feels like a chore
- During a travel-heavy competition schedule
- As part of a recovery routine alongside sleep, nutrition and rest days
A full litre of Lactated Ringer's, balanced with electrolytes, is the base of our 100% Hydration drip. Recovery-focused bags add vitamins, amino acids and magnesium. Your nurse will help you choose, and will be clear that a drip supports a recovery routine — it does not replace one.
Quick checks
- Pale-straw urine most of the day is a decent everyday signal.
- Weigh before and after a hard session to learn your sweat rate.
- If you cramp late in long efforts, look at sodium first.
The DRIPBaR services are not intended to diagnose, treat, cure or prevent any disease. Individual results vary. Always follow the guidance of your own physician or sports-medicine team.