Aspire guide
Specific Populations
Specific Populations manual
Recovery Between Heats: Glycogen Resynthesis for the 200m/400m
A clinical guide to clearing lactate and restoring muscle glycogen when an athlete has multiple sprint heats or the 200m/400m double in a single day.
Why this matters
The 400m dash is notorious for producing catastrophic levels of blood lactate, severely altering blood pH and wiping out intramuscular glycogen.
Read time
3 min
Audience
Athlete + Coach
Use it for
Specific Populations
Start here
Plan your race day nutrition with your coach or dietitian.
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Plan your race day nutrition with your coach or dietitian.
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One-page sheet
Recovery Between Heats: Glycogen Resynthesis for the 200m/400m
Read time
3 min
Audience
Athlete + Coach
Start with the printable
Plan your race day nutrition with your coach or dietitian.
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Use it this week
Plan your race day nutrition with your coach or dietitian.
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Use the guide like a structured handout
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Format
Read the full ebook here, then jump to the one-page handout when you need the shareable version.
Best use
Open the sections you need, print the handout, then send both to coaches, parents, or athletes.
Quick start
Start here
A clinical guide to clearing lactate and restoring muscle glycogen when an athlete has multiple sprint heats or the 200m/400m double in a single day.
THE 30-MINUTE FUEL RULE
1.0-1.2 grams carbs / kg body weight
- Eat carbs within 30 minutes of finishing your race.
- Liquids are best: sports drinks, chocolate milk, fruit pouches.
CLEAR LACTATE FAST
Don't just sit down after a race.
- Walk or light jog for 10-15 minutes.
- This active cool-down helps clear the burn twice as fast.
WATCH YOUR PROTEIN
Keep protein under 15 grams between races.
- Too much protein slows down carb absorption.
- Save your big protein meals for after all your events are done.
The Lactic Acid Clearance Window
Following a 400m race, an athlete's muscles are flooded with hydrogen ions (the actual cause of the burning sensation, alongside lactate).
Following a 400m race, an athlete's muscles are flooded with hydrogen ions (the actual cause of the burning sensation, alongside lactate).
- Active Recovery: The fastest way to clear this is not sitting in a tent. An active cooldown (jogging or…
Context
The Glycogen Resynthesis Protocol
If the athlete has less than 4 hours until their next explosive event, they cannot rely on solid foods to restore the glycogen they just burned.
[!IMPORTANT]
### The 30-Minute Resynthesis Rule
Within 30 minutes of crossing the finish line, the athlete must consume 1.0 to 1.2 grams of simple carbohydrates per kilogram of body weight.
Coach line
[!IMPORTANT]
Unlock the rest of the manual
Full access opens every section, the ebook PDF, and the printable handout companion.
What to do next
Use it this week
Plan your race day nutrition with your coach or dietitian.
Source topics
sprint recovery • 400m dash • glycogen resynthesis • track meet recovery • multiple events