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Coaching12 min read

THE SCIENCE OF WARMING UP FOR A CYCLING RACE

By Anthony Walsh

Why Most Cyclists Get the Warm-Up Wrong

What most riders get wrong about the warm-up. It's not a ritual. It's not superstition. It's one of the most well-understood pieces of exercise physiology we have, and yet the majority of amateur cyclists either skip it entirely or do something so random it might as well be nothing.

I've stood in start areas at races all over Ireland and the UK, and the pattern is always the same. Half the field is sitting in cars eating flapjacks. The other half has been spinning on a turbo for forty-five minutes, drenched in sweat, and has now been standing around in the cold for twenty minutes waiting for the start. Neither group is warming up. One group hasn't bothered. The other has done it all wrong.

And then you watch the pros.

I was at a World Tour time trial a few years back, and I remember being struck by how precise everything was. Every rider on the turbo, every effort timed, every opener hitting at exactly the right moment. They'd finish, towel off, and roll to the ramp with maybe five minutes to spare. Not twenty. Not two. Five.

That precision isn't fussiness. It's applied physiology. And the good news is that everything they're doing is completely available to you.

What a Warm-Up Actually Does to Your Body

Once you understand the physiology, the protocol designs itself.

When you start exercising from rest, your body doesn't instantly switch to full aerobic power. There's a lag. Your heart rate climbs, your blood vessels dilate, your muscles start demanding oxygen — but the supply chain takes time to ramp up. During that lag, you're running on anaerobic energy, burning through your finite stores of phosphocreatine and glycolytic capacity. That's energy you'll want later in the race.

This lag is what exercise physiologists call the VO2 kinetics response, and it's been studied extensively. Burnley and Jones published their landmark 2007 paper showing that a prior bout of heavy exercise speeds up the VO2 on-kinetics for subsequent exercise. In plain English, if you do some hard work before the race, your body delivers oxygen faster when the race starts. The engine is already warm.

But that's only part of it. Dr. Andrea Morelli, who's done warm-up research with Team Ineos riders, has shown that a structured warm-up does at least four distinct things. First, it raises muscle temperature by two to three degrees Celsius, which directly increases the speed of metabolic reactions in the muscle and improves force production. Second, it primes those VO2 kinetics we just talked about. Third, it activates the neuromuscular system — the connection between brain and muscle — so that recruitment patterns are sharper from the first pedal stroke. Fourth, it redistributes blood flow away from organs and toward working muscles, so when you hit race intensity, the plumbing is already pointed in the right direction.

Bishop's 2003 meta-analysis, which is still one of the most cited papers in warm-up research, looked across dozens of studies and found consistent performance improvements from structured warm-ups, particularly in events lasting between about 30 seconds and several minutes. The effect was real, measurable, and repeatable.

Here's where it gets really interesting. McGowan and colleagues published a paper in 2015 specifically examining warm-up strategies in sport, and one of their key findings was that the intensity of the warm-up mattered more than the duration. A short, properly structured warm-up outperformed a long, steady one. This is precisely what most amateurs get backwards.

Time Trial vs Road Race vs Sportive: Different Demands, Different Protocols

Not all races are the same, and your warm-up shouldn't be either.

A time trial is the most demanding scenario for your warm-up protocol. From the moment you leave the start ramp, you're at or above threshold. There's no neutralised zone, no gradual build, no hiding in the bunch. Your body needs to be at full operating temperature from second one. Tim Kerrison, who built the pre-stage protocols at Team Sky during their dominant years, had his riders doing highly specific warm-ups before every time trial — progressive efforts building to above threshold, with precisely timed openers that mimicked the intensity of the first few minutes of the effort.

A road race is different. Most road races have a neutralised zone, and even after the flag drops, there's usually a period of relatively controlled riding before the first real efforts. Your body has time to ramp up. The warm-up still matters — you don't want to be the rider gasping at the back when the first attack goes on a climb ten minutes in — but you don't need the same level of preparation as a TT.

A sportive is the most forgiving. The start isn't aggressive, the opening kilometres are almost always steady, and your body has twenty to thirty minutes to find its rhythm. That said, I've watched countless sportive riders struggle through the first half hour, feeling sluggish and heavy, wondering if today is a bad day. It's not a bad day. They just started cold.

The principle is simple: the faster you need to be at race intensity, the more thorough your warm-up needs to be.

The World Tour Protocol: What the Pros Actually Do

When I had Dan Lorang on the podcast, one of the things we talked about was how meticulous the warm-up had become at WorldTour level. Every watt, every minute, every degree of temperature rise — it's all tracked.

Here's what a typical pro time trial warm-up looks like, based on what I've seen and what coaches like John Wakefield at Bora-Hansgrohe have described.

It starts 25 to 30 minutes before the start time. The rider gets on the turbo — usually a high-end direct-drive trainer with power and temperature monitoring — and begins spinning at about 50 to 55 percent of FTP. Very easy. Just turning the legs over and starting to raise core and muscle temperature.

After about eight to ten minutes of easy spinning, the intensity increases. They'll ride at 70 to 80 percent of FTP for another five to six minutes. This is where blood flow redistribution really kicks in and cardiac output starts to settle at an elevated level.

Then come the openers. This is the part that separates a good warm-up from a great one. The rider will do two to three efforts of 10 to 30 seconds at or above threshold — some coaches push these to 120 percent of FTP. These aren't meant to tire the rider out. They're meant to "prime the pump," as Morelli puts it. They speed up the VO2 kinetics, activate fast-twitch muscle fibres, and give the neuromuscular system a sharp wake-up call.

After the openers, there's a brief cooldown of two to three minutes at very easy intensity. Then the rider steps off the turbo, stays warm with a jacket or gilet, and rolls to the start ramp.

The total protocol is about 20 to 25 minutes of riding. The key is that it finishes close to the start — typically five to eight minutes before. Not fifteen. Not twenty. Five to eight.

The Dead Zone: The Gap That Costs You the Race

This is the mistake I see more than any other, and it's the easiest one to fix.

You do a perfectly good warm-up. Twenty minutes on the turbo, progressive build, nice openers. You feel ready. And then you stand around for twenty-five minutes while the race organiser sorts out a problem with the timing chips.

By the time you start, your muscle temperature has dropped. Your VO2 priming effect has faded. Your nervous system has gone back to sleep. You've done all the work and wasted it.

The research is clear on this. McGowan's 2015 paper showed that the benefits of a warm-up begin to decay within about 10 to 15 minutes. Morelli's work with Ineos found that keeping the gap under 10 minutes was a specific target — and ideally under 8. Beyond that, you start losing what you've built.

Here's the good news: this is fixable. In time trials, where your start time is fixed, you can work backwards from that time and plan precisely. Finish your warm-up 5 to 8 minutes before your slot. In road races, where the exact start time might shift, build in a buffer but keep moving. Stay on the turbo on easy spin until the last possible moment. Keep a jacket on. Don't let yourself cool down.

If you're at a sportive with an unpredictable start procedure, do your warm-up as close to the gun as possible and keep walking, bouncing, or spinning on the spot if there's a delay. Anything to keep muscle temperature elevated.

The Practical Protocol for Amateur Cyclists

Let me be really clear about this: you don't need a turbo trainer to warm up properly. It's convenient, yes. It's controllable, yes. But roads work. Rollers work. Even a quiet stretch of car park works if that's what you've got.

If You Have a Turbo Trainer

Set up your turbo near the start area 30 minutes before your race time. Here's the protocol.

Start spinning at 50 to 55 percent of FTP for eight minutes. Just easy legs, nothing forced. Then build to 70 to 75 percent of FTP for five minutes. Now do three openers — 20 seconds each at 110 to 120 percent of FTP with 60 seconds of easy spinning between each one. Follow that with two to three minutes of very easy spinning. Step off the turbo no more than eight minutes before the start. Stay warm.

That's it. Total warm-up time is about 20 minutes. Total stress on your body is minimal. But the physiological preparation is significant.

If You Don't Have a Turbo Trainer

Ride the roads around the start area. Head out for about 10 minutes of easy riding, gradually building your intensity. Find a quiet stretch — ideally a slight incline — and do two to three accelerations of 15 to 20 seconds at a hard effort. Spin easy back toward the start. Arrive at the start line about five minutes before the gun. Don't clip out until you absolutely have to.

The physiology doesn't care about the source of resistance. It cares about the intensity, the duration, and the proximity to the start.

The Five Mistakes That Kill Your Warm-Up

I keep talking about what the pros get right. Let me tell you what amateurs get wrong, because I've made most of these myself.

The first mistake is going too long. Forty-five minutes on the turbo before a race is not warming up. It's training. You're burning glycogen, accumulating fatigue, and arriving at the start already partly depleted. Twenty minutes is plenty. Twenty-five if you're doing a long time trial and want extra priming. Beyond that, you're doing more harm than good.

The second mistake is going too hard for too long. The openers should be short and sharp — 10 to 30 seconds. They're not intervals. If you're doing three-minute efforts at threshold in your warm-up, you're spending resources you'll need in the race. The purpose of the opener is neural activation and VO2 priming, not a fitness test.

The third mistake is the dead zone I mentioned above. Too long between warm-up and start. Keep it under 10 minutes. Under 8 if you can manage it.

The fourth mistake is not warming up at all. I understand why people skip it. It feels unnecessary when the race is four hours long. But even in a long road race, that first hard effort — the climb at kilometre fifteen, the crosswind section, the attack on the first lap — will hit you differently if your body hasn't been primed. The first 10 to 15 minutes of any hard effort are where VO2 kinetics matter most, and they matter whether the race is 40 minutes or 4 hours.

The fifth mistake is not adjusting for conditions. On a cold day, your warm-up needs to be longer and your post-warm-up protection needs to be better. Muscle temperature drops faster in the cold. On a hot day, you need to be careful not to overheat during the warm-up — keep it shorter, keep hydration up, and consider a cooling vest between the warm-up and the start. The protocol isn't a fixed recipe. It's a framework that adapts to the day.

Putting It All Together

The warm-up is one of those things that separates the rider who's truly prepared from the rider who just trained well. You can have the best form of your life, a perfect taper, legs that are fresh and ready — and still lose two minutes in the opening kilometres because your body wasn't primed.

Burnley, Jones, Bishop, McGowan, Morelli — the science is settled on this. A structured warm-up of moderate duration, with short high-intensity openers, completed close to the start, improves performance. Not by some abstract theoretical amount. By real, measurable watts and seconds.

And the protocol itself is dead simple. Twenty minutes. Progressive build. Two to three openers. Stay warm. Start fast.

If you want to go deeper on race preparation — pacing, tactics, nutrition, tapering, all of it — come join us over at the Roadman community on Skool. It's where serious cyclists work through this stuff together and get answers from people who've actually done the homework.

FAQ

FREQUENTLY ASKED QUESTIONS

How long should a warm-up be before a cycling race?
For a time trial or criterium, aim for 20 to 25 minutes of structured warm-up on a turbo trainer, finishing about 5 to 8 minutes before your start time. For a road race, 15 to 20 minutes is usually enough because the race itself starts at a lower intensity and you have time to settle in. A sportive needs the least — 10 to 15 minutes of easy spinning and a couple of short accelerations will do the job.
What should a cycling warm-up include?
A proper warm-up should include progressive intensity building from easy spinning up to threshold or slightly above, two to three short "openers" of 10 to 30 seconds at race intensity or above, and a short cooldown period before the start. The goal is to raise muscle temperature, prime your VO2 kinetics so oxygen delivery ramps up faster, and activate your neuromuscular system without creating fatigue.
Should I warm up differently for a time trial versus a road race?
Yes. A time trial demands a more thorough warm-up because you hit high intensity from the gun. You need full VO2 kinetics priming with efforts above threshold to speed your oxygen uptake response. A road race usually starts at a moderate pace with a neutralised zone, so a shorter, lighter warm-up is fine. The critical difference is that in a TT there is no gradual build — you are at race effort within seconds.
Can I warm up without a turbo trainer?
Absolutely. Ride the roads around the start area for 15 to 20 minutes, building from easy to moderate with a couple of short sprints or hard accelerations. Find a quiet stretch with no traffic where you can do your openers safely. The turbo is convenient and controllable, but the physiology does not care whether the resistance comes from a trainer or the road.
How close to the race start should I finish my warm-up?
Finish your warm-up no more than 10 minutes before your start time, and ideally within 5 to 8 minutes. Beyond 10 minutes, your muscle temperature drops, your VO2 priming effect fades, and you start losing the benefits you just built. This is the "dead zone" — the gap between stepping off the turbo and rolling to the line — and keeping it as short as possible is one of the simplest ways to arrive at the start ready to race.

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ANTHONY WALSH

Host of the Roadman Cycling Podcast