The first 72 hours after a marathon: a recovery plan without miracle claims

A clear 0–6, 6–24, 24–48 and 48–72 hour plan covering food, fluids, sleep, movement and recovery devices.

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Official Therabody product image, used by INTERVALS for product presentation.

No single procedure “repairs” your legs after a marathon. The first 72 hours are built on fluids and electrolytes appropriate to losses, regular meals, carbohydrate, protein, sleep and gentle movement.

Massage guns and compression boots are optional comfort tools. They do not replace eating, sleeping or paying attention to warning signs.

Key points

0–6 h: fluids, food and easy walking.
6–24 h: sleep, no aggressive treatment.
24–72 h: gentle movement guided by symptoms.

0–6 hours

Walk calmly for 5–10 minutes, change into dry clothes and drink in small portions. Eat a meal or snack with carbohydrate, protein and appropriate salt. Seek medical help for confusion, repeated vomiting, chest pain, major breathlessness or very dark urine with severe muscle pain.

6–24 hours

Eat regularly and prioritise sleep. A short walk may help stiffness. If using percussion, choose low intensity over large muscles; with compression, use comfortable low pressure. Stop if symptoms worsen.

Theragun Pro Plus (6TH Gen) gallery-2
Official Therabody product image, used by INTERVALS for product presentation.

24–48 hours

DOMS may increase. Walking, very easy cycling or brief mobility is reasonable only if movement improves. This is not the day for a hard fitness test.

48–72 hours

If stairs are comfortable and there is no sharp local pain, consider a short, very easy activity. Return to running does not have to happen on day three. Unilateral swelling, rest pain, progressive weakness or altered gait need assessment.

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Frequently asked questions

When can I use a massage gun after a marathon?

If there are no signs of acute injury, use it briefly at low intensity over large muscles and stop if pain increases.

Do compression boots accelerate recovery?

They may improve perceived comfort, but research does not show guaranteed objective benefit for everyone.

When should I run again?

There is no universal deadline. Return gradually when daily movement is comfortable and easy activity does not worsen symptoms.

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Sources and editorial approach

  1. Therabody EU — lietošanas un medicīnisko robežu konteksts / use and medical-boundary context
  2. Li et al. (2025), randomized DOMS protocol trial
  3. Nuell et al. (2025), intermittent pneumatic compression in handball players
  4. Maia et al. (2026), placebo-controlled pneumatic compression trial

Official Therabody product image, used by INTERVALS for product presentation.

Author: INTERVALS editorial team. This is original INTERVALS material; manufacturer content was used only to identify topics and verify product facts. Medical claims were checked against the primary sources listed below. Last reviewed: 21 August 2026.
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