Twelve weeks of structured training. A target event you flew to. A long-haul flight in between. The first ride at altitude on day two and the legs feel wooden, the head feels foggy, and the body composition you spent three months sharpening has been blunted by something nobody trained you for.
This is travel fatigue. It is one of the most under-discussed performance leaks in amateur cycling, and it is most acute for the riders who travel the furthest for the events they care most about — the Etape, the Marmotte, Mallorca camps, U.S. gran fondos for European riders, European events for U.S. riders. The episode where Anthony Walsh walked through his three travel-fatigue tactics — filmed across a Dublin-to-Toronto trip — is one of the most replayable five-minute pieces in the Roadman archive precisely because the cost is so universal and the fix is so unsexy.
Listen to the full vlog with Anthony →
The frame the vlog lands on is simple. Travel fatigue is a behavioural problem solved on the plane. It is not a recovery problem solved at the hotel. By the time the wheels touch down, the cost has either been absorbed or it has not, and the protocol that works is the one that ran across the seven hours of cruise altitude — not the protocol that started after landing.
This piece walks through the protocol, the science behind why it works, and the cycling-specific application that age-group riders most often get wrong.
What A Long-Haul Flight Actually Does To The Body
Before the protocol, the diagnosis. A seven-hour flight at cruise altitude exposes the body to four compounding stressors that all degrade cycling-relevant systems.
One. Cabin humidity sits below 5%. That is drier than the Sahara desert. Respiratory water loss climbs sharply. Skin transpiration losses accelerate. Most passengers come off a long-haul flight in a measurable fluid deficit even if they have drunk steadily through the trip. For a cyclist whose plasma volume is part of the engine, the deficit is performance-relevant.
Two. Sitting for hours blunts venous return from the legs. Circulation in the lower limbs slows, ankle and calf swelling becomes visible by hour three, and inflammatory markers in the lower body climb. The cost is not equivalent to a hard training day, but it is real, and the body manages it slowly across the next 24 to 48 hours.
Three. Cabin pressure typically corresponds to roughly 6,000 to 8,000 feet of altitude. Resting blood oxygen drops a few percentage points. For most travellers, this is not noticed. For an athlete looking to recover and adapt over the next several days, it is a small but real additional load.
Four. Time-zone displacement breaks the circadian rhythm. Eating, sleeping, caffeine, and hormonal cues all need to recalibrate to the new clock. The body manages roughly one hour of time-zone adaptation per day under normal conditions. A six-hour shift takes about six days to fully unwind. For a cyclist arriving 48 hours before a target event, the adaptation curve is incomplete by the start line.
This is the underlying problem. The three tactics in the vlog — hydration, time-zone resetting on the plane, deliberate movement — are designed to compress every part of that cost.
Tactic One — Reset The Watch On Boarding
The most leveraged behavioural change is the cheapest. The moment you board the plane, reset every clock you carry to the destination time zone. Caffeine, meals, and sleep cues then run on that new clock for the duration of the flight.
For a Dublin to Toronto flight, leaving Dublin at midday means landing in Toronto in the early afternoon local time. The flight crosses five time zones. The traveller who keeps their watch on Dublin time has dinner over the Atlantic at 8pm Dublin — which is 3pm in Toronto. They drink coffee at 11pm Dublin — 6pm in Toronto. They land at 9pm Dublin time and try to stay awake until 11pm Toronto time, which is the equivalent of being awake until 4am Dublin. The body is operationally six hours out of phase before any other input has been added.
The traveller who resets on boarding has a different day. Caffeine cuts off at the equivalent of 3pm Toronto time. Meals run on Toronto's clock. Sleep windows align with the destination's evening. The body has been treating Toronto as real for the last seven hours of the flight before landing — that is a banked head start on the adaptation curve.
The reason this works is that circadian rhythm responds to behavioural cues — when you eat, when you receive light, when you stop drinking caffeine — more than it responds to the clock on the wall. Treating the destination time zone as real on the plane is the cheapest reframe in the protocol. The watch reset is the trigger. Everything that follows runs from it.
For the cycling-specific reader landing 24 to 72 hours before a target event, this is non-negotiable. The window between landing and the start line is too short to spend any of it on adaptation that should already have happened in the air.
Tactic Two — Hydrate Like It Is A Training Day
The second tactic is also the most ignored. Cabin humidity is brutal, the bathroom queue is annoying, and most travellers under-drink across a long flight by a wide margin.
The actual fluid demand for a seven-hour flight at cruise altitude sits at roughly 1.5 to 2 litres of water for an average adult. Add coffee, tea, alcohol, or a salty meal and the requirement climbs further. Most passengers drink 500ml to 1 litre across the same window. The deficit accumulates across the flight, peaks on landing, and takes 24 to 48 hours to fully unwind.
The protocol Anthony talks through is straightforward — fill a bottle at the gate, refill it through the flight, and pair the water with a gut-support choice (probiotic, electrolyte addition, or a light meal in line with anti-inflammatory eating). Skip alcohol. Limit coffee to the destination time zone's mid-morning equivalent. Eat one of your own meals — a sandwich, a wrap, fruit, salted nuts — alongside or instead of the airline meal, particularly on flights where the food quality is poor.
The reason this matters for cyclists is mechanical. Plasma volume is part of cardiovascular performance. A 1 to 2% body-mass deficit in fluid measurably blunts heart-rate response, perceived effort, and recovery rate. The cyclist who arrives at the target event in a real fluid deficit — even if they hit their hydration targets in the 24 hours after landing — is starting the event with a slightly smaller engine. The compound penalty across a long ride is not small.
Combining proper hydration with anti-inflammatory eating across the 48 hours either side of the flight — light protein, vegetables, omega-3 sources, low alcohol, low ultra-processed carbohydrate — is the single most leveraged thing the average traveller can do to compress travel-fatigue cost. Most riders already know this. Most riders also do not do it.
Tactic Three — Move At Intervals
The third tactic is the simplest and produces the largest swing in lower-body comfort on landing. Move at intervals across the flight.
The mechanism is venous return. Skeletal muscle contraction in the calves and thighs is what pumps blood from the lower body back to the heart. When you sit still for hours, that pump stops. Fluid pools in the lower limbs, swelling and stiffness build, and the inflammatory markers that cycling recovery has to manage start to climb.
The fix is unsexy and effective. Get up every hour. Walk to the bathroom even when you do not need it. Do a slow lap of the cabin. Sit back down. Do a set of seated calf raises and ankle circles every 20 minutes. Stretch the hip flexors against the seat in front when the seatbelt sign is off. None of this is sophisticated. All of it works.
For cyclists, the additional layer is the lower back and hip flexors. Long-haul sitting compounds the postural pattern that years of riding have already encouraged — anterior pelvic tilt, tight hip flexors, weak glute activation. A pre-event flight is not the time to add 14 hours of forced sitting on top of that pattern. Deliberate stretching every 60 to 90 minutes — hip flexor stretches against the seat back, seated thoracic rotations, gentle hamstring stretches — keeps the postural debt manageable.
The compounding gain is sleep on the plane. Travellers who hydrate, move, and reset their clocks on boarding are far more likely to sleep at the destination's evening hours during the flight. Travellers who sit still, dehydrate, and stay on the home time zone in their head usually do not sleep on the plane and arrive at the destination already in significant sleep debt.
Cycling-Specific Application
For the Roadman audience, the practical context is the target event sitting 24 to 72 hours after landing. The window is short. The protocol is what makes the window usable.
The 48-hour rule. If your event is more than 48 hours after landing, you have a sharpening day available — a 60 to 90 minute spin with two or three short efforts in the 24 hours before the event. Schedule it after your first proper night's sleep at the destination. The legs will feel notably better on the second day at the new time zone than on the first.
The 24-hour rule. If your event is within 24 hours of landing, do not ride hard at the destination. A 30 to 45 minute easy spin to shake out the legs is enough. Save adaptation time for sleep and hydration, not for training stimulus you do not need.
The 72-hour rule. If your event is more than 72 hours after landing, you have a full taper window. Day one — recovery and easy walking. Day two — short sharpening ride. Day three — easy spin or rest. Day four — race day.
The pattern across all three is the same. The flight has cost you days, not hours. Plan around the cost. Do not plan around the version of yourself who flew six hours and arrived with no penalty. That version of you exists in the marketing copy and not in the physiological reality.
For cyclists tracking their adaptation more rigorously — heart-rate variability, resting heart rate, sleep quality — the in-flight protocol typically produces a 12 to 24 hour faster return to baseline than no protocol. That is a meaningful number when the target event sits inside a 72-hour window.
For training plan structure around international events, the cycling tapering guide and the cycling sleep optimisation piece cover the surrounding work. The key inputs to monitor — sleep, HRV, perceived freshness, body weight after re-hydration — are the same metrics you would track in any taper window. TrainingPeaks dashboards make the tracking trivial across the trip.
What The Roadman Audience Specifically Gets Wrong
Two patterns surface repeatedly in the questions Anthony fields on this topic.
Pattern one — over-training in the 48 hours after landing. The familiar one. The cyclist arrives, feels the wooden legs, and tries to "ride them out" with a long endurance day. The result is a deeper hole than the flight produced on its own. Travel fatigue is not blunted by training stimulus. It is blunted by sleep, hydration, and easy movement. The temptation to train through it is the trap.
Pattern two — under-eating around the trip. Travelling for a target event is stressful. The traveller who restricts food on the plane, skips the airline meal, and lands hungry at the destination is starting the recovery window in a calorie deficit on top of the fluid deficit. For an event where carbohydrate availability matters, this is a self-inflicted penalty. Eat normally on the plane. Eat normally at the destination. The two days before a target event are not the time to chase a body-composition number. The time for that work is the eight to twelve weeks before travel.
Both patterns have the same root cause. The traveller is trying to manage the trip with the wrong frame — as if it were a normal training week interrupted by a flight, rather than a deliberate event preparation that the flight has now built into.
The right frame is the one Anthony lands on across multiple Roadman conversations on travel and racing — the trip is part of the event. The protocol is part of the preparation. The work that compresses travel-fatigue cost is the work that lets the twelve weeks of training you actually did still be there at the start line.
Listen To The Full Vlog
The full conversation on this — including the gut-support choices Anthony made on the Toronto trip, the food selection on long-haul flights, and the in-flight stretching habits that translate across to cyclists — is on the Roadman Cycling Podcast.
Travel fatigue is one of the most preventable performance leaks in amateur cycling. The protocol is not complicated. It runs on the plane, not at the hotel. The work that lets your training count when you land is the work most cyclists do not do because it does not look like training.
If you are heading to a target event that involves a long flight and you want help structuring the preparation around it, the Roadman coaching system is built for this exact context — serious amateurs with target events that often sit on the other side of the world from where they train. For a faster answer on a specific question, ask the AI coach.
The trip is part of the work. Treat it that way.