How to Warm Up and Cool Down for a Run

Short version: skip the static stretching before you run — move dynamically instead. Save the toe-touches for after, when your muscles are actually warm. Here's a routine you can follow in under 15 minutes, scaled to whatever kind of run you're doing.

Most runners either skip the warm-up entirely or do the wrong one — a few cold hamstring stretches, held in silence, before heading out the door. Neither helps much. The good news is that an effective routine is short, doesn't require equipment, and the "why" behind it is straightforward once you see it laid out.

Why warm up at all

A cold muscle is stiffer and less elastic than a warm one, and your cardiovascular system needs a moment to shift from resting to working. A proper warm-up does three things at once: it raises muscle temperature so tissue transmits force more efficiently, it increases blood flow and oxygen delivery to the muscles about to do the work, and it primes your nervous system to fire efficiently — which is a big part of why strides before a race make the first mile feel less like waking up mid-run.

The mistake most runners make: static stretching, cold

The old advice — touch your toes, hold it, then go — has it backwards. Holding a static stretch on a cold muscle can temporarily reduce that muscle's ability to produce force, which is the opposite of what you want right before running. Static stretching isn't bad; it's just aimed at the wrong moment. Save it for after your run, when your muscles are warm and pliable — that's when it does real good. Before you run, the better warm-up is dynamic movement: taking joints through their full range of motion, without holding a position.

The warm-up routine

Scale the warm-up to the run. An easy day doesn't need the full routine; a hard workout or a race does.

Easy run — about 5 minutes

Workout or race day — about 12–15 minutes

  1. Easy jog — 5–8 minutes
  2. Dynamic drills (table below)
  3. 4–6 strides, 20–30 seconds each, building up to near race pace, with a full recovery walk back between each
DrillReps / duration
Leg swings — front to back10 per leg
Leg swings — side to side10 per leg
Walking lunges10 per leg
High knees~20 seconds
Butt kicks~20 seconds
Ankle circles10 each direction, per side

Racing or training somewhere hot? You can shorten the easy-jog portion — the ambient heat is already doing some of the warming for you — but keep the dynamic drills, since those are about joint mobility, not body temperature.

Why cool down at all

Your leg muscles help pump blood back up to your heart while you run — squeezing the veins with every stride. Stop dead the moment you finish a hard effort, and that pump disappears while your heart rate and blood vessels are still wide open, which is part of why some runners feel briefly lightheaded right after crossing a finish line. An easy jog or walk lets your heart rate and circulation step down gradually instead of falling off a cliff. It also puts you in exactly the window where static stretching pays off — muscles warm, blood flow still elevated.

The cool-down routine — about 8 minutes

  1. Easy jog or walk — 5–10 minutes (longer after a harder or longer effort)
  2. Static stretches, held 20–30 seconds per side, breathing normally, no bouncing:
StretchHold
Quad stretch20–30 sec / side
Hamstring stretch20–30 sec / side
Calf stretch20–30 sec / side
Hip flexor stretch (kneeling lunge)20–30 sec / side
Figure-4 glute stretch20–30 sec / side

If you're genuinely short on time

Something is better than nothing, and the routine above is a target, not a rule. A realistic fallback:

General guidance for healthy adult runners, not medical advice. If you're returning from injury or managing a specific condition, follow your physio's or doctor's guidance instead.

FAQ

Should I stretch before running?

Not statically — save the held stretches for after. Before running, dynamic movement (leg swings, walking lunges, high knees) warms the muscle and primes it for work without the temporary strength dip that cold static stretching can cause.

How long should a warm-up be?

About 5 minutes for an easy run — a brisk walk or jog is enough. Before a workout or race, plan on 12–15 minutes so you have time for dynamic drills and a few strides.

Why do I feel dizzy right after a hard effort?

Stopping abruptly removes the "muscle pump" your legs were providing to help circulate blood, while your heart rate and vessels are still dilated from the effort. An easy jog or walk to cool down lets that system wind down gradually instead of all at once.