Forty-five minutes. That is how long some competitive athletes spend warming up before a session even begins, sports science research suggests. Most everyday exercisers, by contrast, need only five to ten minutes to cover the basics.

That gap matters more than it might seem. A cold, stiff body is not ready for sudden effort, and the price of skipping preparation can be a pulled muscle, a strained tendon, or a session cut short before it has properly begun.

That time is not wasted, either. It is typically spent moving through four distinct stages, each with its own job, gradually building the body from a resting state to full readiness. Broken down, that routine is simpler than it sounds.

A warm-up, in the simplest terms, is any activity, physical or mental, that gets the body ready for the demands of a chosen sport or workout, according to stretching resource StretchCoach. Done properly, it raises muscle and core temperature, quickens the heart rate and breathing, and sends more blood, oxygen and nutrients to the muscles about to be used.

Get the Blood Pumping

The first stage is the general warm-up: five to ten minutes of light activity such as walking, jogging, easy cycling or skipping. Both the intensity and length should suit the individual's fitness level, but the aim is simply to raise the heart rate and break a light sweat.

This stage does the groundwork for everything that follows. It raises muscle temperature and blood flow, which makes the muscles more receptive to the stretching that comes next.

Short Holds, Big Benefits

Static stretching means holding a position at the edge of a muscle's range, without bouncing, for a set time. As part of a warm-up, StretchCoach recommends brief five- to ten-second holds across the major muscle groups, while Cleveland Clinic physician Dr Anne Rex suggests holding slightly longer, at 15 to 30 seconds. The two figures differ, but both agree on the same principle: far shorter holds than the 60 to 90 seconds used in a cool-down.

The reason for keeping it brief is performance, not just safety. Longer static holds performed right before intense effort can reduce strength and power rather than prepare the body for it.

That risk fades once sport-specific, high-intensity activity follows the stretch, a 2009 study found. In other words, a short static stretch earns its place here precisely because the next stage of the routine cancels out its downside.

Drills That Mirror the Sport

With the body warm and loosened, the routine turns to movements that mirror the sport itself. Sports science research gives the example of a footballer doing light dribbling drills, or a basketball player working through low-pressure one-on-one practice.

This stage bridges general preparation and full performance. It can double as a training opportunity too, since warm-ups can represent a meaningful share of a season's overall training time.

This specificity may matter for injury risk as much as performance. Preparing the neuromuscular system for the exact demands of the sport, rather than leaving it to meet those demands cold in the opening minutes, is the reasoning behind favouring sport-specific drills over generic movement at this stage.

Movement Beats Standing Still

Where static stretching holds the body still, the routine finishes with dynamic stretching: actively moving joints and muscles through sport-specific motions, usually for 10 to 12 repetitions per movement, explains Dr Rex. Because it mimics the actions about to be performed, it rehearses those movement patterns directly, rather than simply loosening the muscles around them.

This final stage also improves blood flow and muscle temperature, which increases flexibility and reduces resistance in the muscles. It has been linked to acute gains in power, sprint speed and jump performance too.

It should stay specific to the sport at hand, gradually building in range and intensity until the exerciser reaches a physical and mental peak right before the session begins. None of this guarantees an injury-free session – the evidence that warm-ups directly prevent injury remains limited – but the physical readiness it builds is widely accepted as the best preparation available for what comes next.

Common Mistakes to Avoid

One of the biggest misunderstandings, according to StretchCoach, is assuming that a few stretches alone count as a warm-up. Stretching cold muscles without the general warm-up beforehand brings little benefit and raises the risk of a strain rather than preventing one.

Skipping the general warm-up phase entirely is another common error. Jumping straight into intense effort without five to ten minutes of light activity first denies the muscles the blood flow and temperature rise they need to work safely.

A third pitfall is defaulting to cool-down-length holds during the warm-up itself. Many exercisers hold static stretches for the full 60 to 90 seconds out of habit, when the shorter five- to 30-second version explained above is what actually prepares the muscles for what comes next.

Overdoing the warm-up altogether is a mistake too. A warm-up that is too long or too intense can generate fatigue rather than sharpen performance, working against the very readiness it was meant to build.

Finally, a warm-up that ignores the sport entirely misses much of its value. Generic movement is a good starting point, but only sport-specific drills rehearse the exact movements the body will need to perform once full intensity begins.

The Simple Routine in Brief

Put together, the routine is more straightforward than the science behind it suggests. Four brief stages carry the body from a resting state to full readiness, and how long that takes depends on the exerciser: StretchCoach suggests five to ten minutes is enough for general fitness, while competitive athletes may build out a fuller version of all four stages, closer to the 45 minutes some competitive athletes use.

  1. General warm-up – five to ten minutes of light activity to raise the heart rate and break a light sweat.
  2. Static stretching – brief five- to 30-second holds across the major muscle groups.
  3. Sport-specific drills – light, low-pressure movements that mirror the activity ahead.
  4. Dynamic stretching – active, sport-specific movement to build power and coordination.

Followed in that order, this simple routine helps the body perform better and gives it the best chance of avoiding injury before exercise even begins. Whether that takes five minutes or forty-five, it can be the difference between a session that goes to plan and one that ends early.

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Frequently Asked Questions

  • What is the purpose of a warm-up?
    A warm-up prepares the body for the demands of a chosen sport or workout by raising muscle and core temperature, quickening the heart rate and breathing, and sending more blood, oxygen, and nutrients to the muscles.
  • How long should a general warm-up last?
    A general warm-up should last five to ten minutes, depending on the individual's fitness level.
  • Why is static stretching important in a warm-up?
    Static stretching helps prepare the muscles for activity by holding positions at the edge of a muscle's range, which can improve flexibility and reduce the risk of injury.
  • What are sport-specific drills?
    Sport-specific drills are movements that mirror the sport itself, helping to prepare the neuromuscular system for the exact demands of the sport.
  • What is dynamic stretching?
    Dynamic stretching involves actively moving joints and muscles through sport-specific motions to improve blood flow, muscle temperature, and coordination.