After sports practice hydration
The first 30 min after practice is the recovery window. Here's the drink volume by age, and the weight-based rule for teen athletes.
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The 30 minutes after sports practice is the prime hydration recovery window. Fluid losses during practice need to be replaced, muscle glycogen needs to be topped up, and the sodium + potassium lost in sweat needs to come back — all within a compressed window that sets how the athlete feels through the rest of the day and recovers for tomorrow's session. This page covers the volume targets by age, the weight-based replacement rule for teen athletes (2% body-weight loss = intervention threshold), and the critical 'don't default to sports drinks' framing that keeps sugar habits from building.
Post-practice recovery principles
The 30-min window matters
Glycogen replenishment + fluid replacement + sodium balance — the body absorbs these faster in the first 30 min post-exercise than at any other time in the day.
Weigh before + after (once a week)
Any weight loss is pure fluid loss. Replace at 1.5× the weight drop over the next 2 hours (100 g lost = 150 ml to drink). Most athletes chronically underdrink at practice.
Water first, sports drink only for 60+ min intense sessions
For a 45-min practice at moderate intensity, water + a snack does better than a sports drink. Building the sports-drink habit for short practices sets up sugar habits that carry into adulthood.
Pair water with food — not water alone
500 ml water + a banana or a peanut-butter sandwich beats 500 ml of sports drink for recovery. The food delivers the carbs + sodium you'd get from a sports drink, without the sugar excess.
Post-practice recovery tactics
- Kid 6–10 after 45-min practice: 400 ml water within 30 min + a snack
- Kid 11–13 after 60-min practice: 500 ml water + electrolyte tablet if hot day
- Teen athlete after 90-min session: 750 ml water + proper meal within 60 min
- On hot-day practices, ALSO replace sodium — pretzels, cheese, salty snack
- Weigh once/week pre+post — calibrate the athlete's true sweat rate
- Avoid 'recovery' products with added sugar + caffeine — chocolate milk beats them all
- Keep a post-practice water + snack bag in the sports bag — ready before they are
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Open the calculator →Signs recovery isn't happening
Signs of Dehydration
- Dark urine at dinner after practice — recovery window missed
- Muscle cramps during evening after practice — residual dehydration
- Headache 2–4 hours after practice
- Poor sleep the night after hard practice
- Persistent fatigue through the next day
- Performance declining across a training week
- Sports-drink dependence — drinking them on non-practice days
When to Contact Your Healthcare Provider
- Recurring muscle cramps across multiple practices — electrolyte panel
- Dark brown urine after a hard session — rhabdomyolysis concern, urgent care
- Performance plateau or decline not explained by training load — sports-medicine consult
- Sleep disruption tied to sports schedule — pediatrician + sports coach review
Frequently Asked Questions
How much water should my teen athlete drink after a 90-minute practice?
Target: 750–1000 ml across the 60 minutes post-practice, plus a meal within that window. The weight-based rule is more precise: if they lose 500g during practice (= 500 ml fluid), they need to drink 750 ml to fully replace. Pair with food — a proper meal beats any liquid recovery product. Avoid sports drinks as the default; they're designed for during-practice, not after. Chocolate milk is an excellent post-practice drink — protein + carbs + sodium + fluid in one.
Do kids need sports drinks after every practice?
No. Sports drinks are designed for 60+ minute sessions at moderate-to-high intensity, OR hot-weather sessions where sweat rate exceeds 1 L/hour. A kid at a 45-min recreational practice on a cool day does better with water + a snack. The risk of defaulting to sports drinks: they build a sugar-expectation habit that extends into non-practice days (drinking Gatorade with lunch becomes normal) and predicts adult metabolic issues. Save sports drinks for tournament days and hot-weather practices.
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