Nearly every runner knows they should warm up before running. But most skip it, do it wrong, or spend barely 30 seconds bouncing around before heading out at full speed. Then come the aches, the strains, and that first kilometer that always feels like pure torture (World Athletics) (ACSM).
A good warm-up does not have to be long or complicated. In this guide we give you a step-by-step routine you can do in 5-15 minutes depending on your session, and it makes an enormous difference in how you feel and perform from the very first stride.
Why warming up before running is essential
Warming up is not a luxury and it is not wasted time. It is a physiological preparation that gets every system in your body ready for the effort ahead. The research is clear: a proper warm-up can reduce injury risk by over 50%.
Here is what happens in your body when you warm up properly:
- Activates the cardiovascular system: Your heart rate rises gradually, blood flow to the muscles increases, and oxygen delivery improves. This is how you avoid that first-kilometer "shock."
- Lubricates the joints: Movement stimulates the production of synovial fluid in the ankles, knees, and hips. Lubricated joints = less friction = less wear and discomfort. This is key for preventing knee pain.
- Raises muscle temperature: Warm muscles are more elastic, contract with greater force, and are far more resistant to tears and strains.
- Primes the nervous system: Improves the neuromuscular connection, coordination, and reaction times. Your body "remembers" the movement patterns of running before you demand peak performance.
- Lowers perceived effort: When you start with your body ready, the effort feels more manageable from the outset. Without a warm-up, that first kilometer always hurts more than it should.
General vs specific warm-up
Not all warm-ups are created equal. Understanding the difference between these two types will help you structure your routine better:
General warm-up
This is the first phase. Its goal is to raise your body temperature and gradually activate your cardiovascular system. It includes activities like brisk walking, very easy jogging, or basic joint mobility. It is not running-specific: any low-intensity activity that elevates your heart rate works.
Specific warm-up
This is the second phase. Here you prepare the muscles, joints, and movement patterns specific to running. It includes dynamic exercises like high knees, butt kicks, walking lunges, and muscle activations. This phase is what truly makes the difference in your performance and protection against injuries.
A complete warm-up combines both phases. For an easy run, the general phase is enough. For intervals, speed work, or racing, you need both.
Complete warm-up routine (15 minutes)
This is the routine we recommend before any quality session (intervals, fartlek, tempo) or race. For easy runs, you can stick with just steps 1 and 2.
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Step 1: Joint mobility (3 minutes)
Start from the bottom up, moving each joint through its full range of motion. Do 10 circles in each direction:
- Ankles: Circles with your foot off the ground, both directions. Essential for preventing ankle stiffness in the first few meters.
- Knees: Feet together, hands on the knees, gentle circles. Do not force it: this is mobility, not stretching.
- Hips: Wide circles with the hips, as if drawing a hoop. The hip is the runner's key joint.
- Shoulders: Circles forward and backward. Tense shoulders waste energy while running.
Step 2: Easy jog (5 minutes)
Start jogging at a very easy pace. We are talking about a pace where you could talk without any problem at all, even slower than what you consider your normal easy pace. The goal is not to train, but to raise your body temperature and increase blood flow to the leg muscles.
If it is cold, extend this to 7-8 minutes. If you have been sitting for hours, start with 2 minutes of brisk walking before jogging.
Step 3: Dynamic exercises (5 minutes)
These exercises prepare the muscles and movement patterns specific to running. Do each one for 20-30 meters or 15-20 seconds:
- High knees (skipping): Alternate driving your knees up with a small hop. Works hip flexion and activates the hip flexors. Keep your torso upright.
- Butt kicks: Jog lightly bringing your heels up to your glutes. Activates the hamstrings and improves the recovery phase of the stride.
- Walking lunges: Take a long step forward, bending both knees to 90 degrees. Alternate legs as you advance. Works glutes, quads, and balance.
- Leg swings: Standing, swing one leg forward and backward like a pendulum, 10 times each leg. Then laterally (crossing in front and opening out). Mobilizes the hip in all planes.
- Hip rotations: Standing, lift your knee and draw a circle opening and closing the hip. 8-10 reps per leg. Activates the hip rotators.
Step 4: Activations (2 minutes)
These exercises "wake up" key muscles that tend to be dormant (especially if you have been sitting). Do 10-12 reps of each:
- Clamshells: Lying on your side with knees bent, open the top knee like a clamshell while keeping your feet together. Activates the gluteus medius, essential for hip and knee stability while running.
- Glute bridges: Lying on your back, feet flat on the floor, lift your hips by squeezing your glutes at the top. Hold 2 seconds at the top. Activates glutes and hamstrings.
- Calf raises: Standing, rise up on your toes slowly and lower with control. Activates the calves and ankle complex. Especially important if you are prone to Achilles tendon issues.
Step 5: Strides (optional, 3-4 minutes)
Strides are 60-80 meter pick-ups where you gradually increase speed from easy jogging to close to your race pace or interval speed. This is not a sprint: it is a progressive acceleration.
Do 3-4 strides with 30-40 seconds of easy jogging between them. This step is essential before speed sessions or racing: it prepares your neuromuscular system for pace changes and confirms everything feels right before pushing hard.
Warm-up by workout type
You do not need the same routine for an easy run as you do for intervals. Adapt your warm-up to the demands of the session:
Easy run
Duration: 5 minutes. A brisk 2-minute walk plus 3 minutes of very easy jogging is enough. The easy run itself acts as a progressive warm-up. If you want, add 1 minute of ankle and hip joint mobility.
Intervals and speed work
Duration: 15 minutes. Full routine. This is the session that demands the most from your body, so you need the most thorough preparation: joint mobility + easy jog + dynamic exercises + activations + 2-3 strides. If you want to run faster, start by warming up properly.
Long run
Duration: 10 minutes. Joint mobility + 5-7 minutes of easy jogging + a few basic dynamic exercises (light high knees and leg swings). You do not need activations or strides because the intensity will be low-to-moderate throughout the session.
Race day
Duration: 20 minutes. Full routine + strides at target pace + mental preparation. Include all 5 steps of the routine and finish with 3-4 strides ending at race pace. Use the final 5 minutes before the start for deep breathing, race visualization, and keeping moving (do not sit down or stand still).
Common warm-up mistakes before running
These are the mistakes we see constantly that wipe out the benefits of running with a proper warm-up:
1. Doing static stretches before running
This is the most widespread mistake. Holding a stretch position for 20-30 seconds with cold muscles not only does not prevent injuries, it temporarily reduces muscle strength and power. Static stretches are for after your run, never before.
2. Starting too fast
Heading straight out at training pace with no warm-up forces your cardiovascular system to adapt all at once. The result: heart rate through the roof, gasping for breath in the first kilometer, and a higher risk of muscle strain. If you are someone who goes full speed from the front door, change that today.
3. Skipping the warm-up entirely
"I warm up by running." Yes, partially. But without joint mobility or activations, your joints are working without optimal lubrication and your glutes are still asleep from sitting all day. Injury risk goes up, especially for quality sessions. If you do not have time to warm up, you do not have time to run.
4. Over-warming up
A 30-40 minute warm-up before an easy run is unnecessary and counterproductive: you are wasting energy and time that should go to the main session. Match the warm-up duration to the workout type. More is not always better.
Stretching: before or after running?
This is one of the most repeated questions among runners, especially those starting out from scratch. The answer is clear:
Before running: dynamic exercises only
Before a run, your body needs movement, not passive elongation. Dynamic exercises (high knees, leg swings, walking lunges) raise muscle temperature, improve active range of motion, and prime the nervous system. They are the ideal running-specific warm-up.
After running: static stretches
After your run, your muscles are warm and receptive to stretching. This is the perfect time to hold positions for 20-30 seconds targeting quads, hamstrings, calves, hip flexors, and glutes. Post-run static stretches help reduce stiffness and improve flexibility over time.
Frequently asked questions
How long should I warm up before running?
It depends on the type of session. For an easy run, 5 minutes of walking and progressive jogging is enough. For intervals or speed work, you need 15 minutes with mobility, jogging, dynamic exercises, and activations. For a race, allow 20 minutes including strides and mental preparation.
Do I need to warm up for an easy run?
Yes, though minimally. Five minutes of brisk walking followed by very easy jogging is enough. The easy run itself acts as a progressive warm-up. However, if you run first thing in the morning or in cold weather, add some ankle and hip rotations to wake up the joints.
Should I do static stretches before running?
No. Static stretching before running temporarily reduces muscle power and does not prevent injuries. Before running, only do dynamic exercises (high knees, leg swings, walking lunges). Save static stretches for after your run, when your muscles are warm.
How should I warm up in cold weather?
In cold weather you need more time because muscles take longer to reach optimal temperature. Do your joint mobility indoors if possible, wear an extra layer during the warm-up, and extend the easy jog by a few extra minutes. In winter, 5-10 additional minutes of warm-up make a huge difference.
What happens if I skip the warm-up before running?
Without a warm-up, your muscles are cold and stiff, which significantly increases the risk of strains and cramps. Plus, the first kilometer will feel harder than it should because your cardiovascular and nervous systems are not ready. Your performance will be worse and your perceived effort much higher.
