How to warm up before running properly: the 8-minute routine that prevents injury

Most runners get the warm-up wrong in one of two ways. Either they do nothing, walk to the start of their route and break into a run, or they spend 5 minutes doing the static stretches that PE teachers taught them in the 1990s, which the research now shows actually reduces power output and offers no injury protection. Both options leave performance on the table and increase your injury risk.

The right warm-up before running is a sequence of movements that progressively raises body temperature, activates the muscles you are about to use, and rehearses the running pattern at low intensity before you ask it to do real work. It takes 8 minutes. It dramatically reduces injury risk according to multiple meta-analyses. And almost nobody does it consistently.

Here is the exact routine, with an interactive timer that walks you through each step so you do not skip the bits that matter.

Why static stretching before running is wrong

The old advice to do 30-second hamstring stretches before running has been thoroughly overturned by sports science research. Static stretching of a cold muscle, held for more than 15 to 20 seconds, temporarily reduces power output by 5 to 10 percent in studies. It also does not reduce injury risk, which was the original reason it was prescribed.

The mechanism is straightforward. Long static holds reduce muscle stiffness, which sounds good but is actually a problem. Running needs stiffness in the right places (tendons especially) to recoil and transmit force efficiently. Stretch the stiffness out and you run with less spring and more energy cost.

This does not mean static stretching is bad. It is useful, after a run, when the body is warm and you are trying to maintain flexibility. Before a run, it is the wrong tool.

Why dynamic warm-ups work

The dynamic warm-up does three things that static stretching does not. First, it raises body temperature. Warmer muscles are more pliable, more responsive, and less injury-prone. Second, it activates the muscles you are about to use. The brain primes the firing patterns it needs for running. Third, it rehearses the running pattern at low intensity, so the actual running starts on grooves already laid down.

The most robust evidence for dynamic warm-ups comes from the FIFA 11+ programme, originally developed for football but applicable to running, which has been shown to reduce running and football injuries by roughly 30 to 50 percent in controlled studies. The exercises are not identical to running, but the principles are: progressive temperature rise, muscle activation, movement-specific rehearsal.

The 8 minutes you spend warming up are the 8 minutes that save the 8 weeks of being injured.

When to use static stretching

After the run, when muscles are warm. 5 to 10 minutes of static stretches (calves, hamstrings, hip flexors, glutes, quads) is genuinely useful for maintaining range of motion and reducing soreness. This is the time the old advice was meant for.

Static stretching is also useful as a standalone session, separate from running, for general flexibility. Yoga, dedicated stretching routines, and tools like the FRC system all work better when not jammed before a hard effort.

The first 5 minutes of the run is part of the warm-up

Even with a perfect 8 minute warm-up, the first 5 to 10 minutes of your run should be deliberately slow. Heart rate ramps up. Breathing finds its rhythm. The connective tissues finish warming. Treating the first kilometre as a continuation of the warm-up, rather than a chance to set a fast pace, is the difference between a smooth session and an early-effort flop.

How Edge builds the warm-up into every session

Edge’s sessions include the warm-up by default. Each run plan begins with a sequence very similar to the one above, calibrated to the intensity of the session that follows. Easy runs get a shorter warm-up. Harder sessions get a more thorough one. The user does not have to remember the routine, the app prompts the sequence.

The reason this matters is that the warm-up is the most-skipped part of training, and it is the part that quietly produces most of the injury prevention benefit. Built in by default, it happens. Left optional, it does not. Edge solves the problem by removing the decision.