In elite track cycling, supplement strategies are rarely accidental.
Creatine loading blocks.
Beta-alanine phases.
Occasional bicarbonate use before key efforts.
The assumption often sits quietly underneath: if two ergogenic aids work independently, combining them should produce a larger effect.
A 2020 paper by Dr Anne Delextrat and colleagues, including Georgina Impson-Davey who is now Lead Performance Nutritionist at British Cycling, examined whether combining creatine monohydrate and beta-alanine improved repeated sprint performance more than taking either supplement alone.
The study can be read in full HERE
It is important to state immediately: This was not a study involving track cyclists.
It was conducted in amateur team and racket sport athletes using a cycling ergometer repeated sprint protocol (10 x 6-second efforts with 24-second recovery), a laboratory model commonly used to assess repeated sprint ability.
The value of the study for track cycling lies not in direct evidence, but in careful application.
What The Study Actually Did
Study snapshot
- Population
- Amateur team and racket sport athletes
- Duration
- 28 days supplementation
- Protocol
- 10 x 6-second maximal sprints
- Recovery
- 24 seconds passive
- Groups
- Creatine / Beta-alanine / Combined / Placebo
- Primary outcomes
- Peak power, mean power, performance decrement
Key finding
- Creatine and beta-alanine improved repeated sprint power independently.
- Combined supplementation produced no additional benefit in this protocol.
Participants were randomly assigned to one of four groups for 28 days:
- Creatine monohydrate (5 g per day)
- Beta-alanine (6 g per day)
- Combined creatine and beta-alanine
- Placebo
They completed a repeated sprint sequence consisting of:
- 10 x 6-second maximal sprints
- 24 seconds passive recovery between efforts
- Resistance set relative to body mass
Researchers measured:
- Peak power
- Mean power
- Performance decrement
- Heart rate
- Blood lactate
- Perceived exertion
The findings were:
- Creatine increased peak power by around 5 percent.
- Beta-alanine increased peak power and mean power by around 5 percent.
- The combination did not produce additional benefit.
- Lactate, heart rate and perceived exertion were not significantly altered.
Effect sizes were moderate.
That is the data.
Everything beyond this point is applied interpretation. Translation is not guesswork - but it is not proof either.
Who Should Actually Care?
This paper is useful only if your real-world problem resembles its real-world question: repeated high-intensity efforts with incomplete recovery.
This is most relevant if you are:
- A sprint rider who needs to reproduce near-maximal accelerations across multiple rounds in a day.
- A team sprint rider using repeatability blocks where the quality of effort drops after rep 3-6.
- A bunch rider who fades on sprint laps and late attacks after long periods of stochastic effort.
- A coach trying to decide whether "stacking" is a strategy or just a habit.
This is less relevant if you are:
- Chasing a single best flying 200 in a fresh state.
- Racing a kilo/500 where pacing and torque management dominate the outcome.
First Translation: Dedicated Track Sprinters
The study protocol - 6-second efforts with incomplete recovery - most closely resembles repeated maximal accelerations rather than full race simulations.
It aligns most directly with:
- Team sprint training blocks.
- Match sprint tournaments involving repeated maximal efforts within a day.
It does not closely resemble:
- A single maximal flying 200.
- A kilo time trial.
- The sustained final sprint of a keirin.
- The variable demands of a structured bunch race.
Where Riders Go Wrong
The most common misreading of studies like this is simple: if two supplements help on their own, combining them must help more.
In this protocol, it did not. That is not a boring result. It is a useful one, because it suggests at least one of the following:
- The limiting factor in a 6-second effort with short recovery is not primarily acid-base buffering.
- The performance benefit of each supplement may converge on overlapping constraints (so the second one adds less).
- There may be a ceiling effect in short-duration repeated sprint tests where "more" supplementation does not change the bottleneck.
In other words: the absence of an extra stacking benefit is itself information. It tells you not to assume synergy just because the ingredients are fashionable.
Creatine in Sprint Context
Six-second maximal efforts rely heavily on the ATP-phosphocreatine system.
Phosphocreatine stores are depleted rapidly and partially restored during short recovery windows.
Creatine supplementation increases intramuscular creatine availability and may enhance peak power output across repeated efforts.
Mechanistically, that aligns with sprint cycling demands.
However, two important caveats apply:
1. Around 20-30 percent of individuals are low responders to creatine.
2. Elite sprinters are already near physiological ceiling; percentage gains observed in amateur athletes may be attenuated at world-class level.
In other words, creatine makes physiological sense for sprint riders - particularly in training repeatability - but laboratory percentage improvements cannot be assumed to scale directly to podium outcomes.
Beta-Alanine in Sprint Context
Beta-alanine increases intramuscular carnosine, improving buffering capacity.
In 6-second efforts, acidosis is unlikely to be the primary limiter. ATP-PCr dominance means buffering plays a smaller role.
This may explain why lactate values did not significantly differ between groups in the study.
For pure flying 200 performance, beta-alanine is unlikely to be decisive.
For repeated sprint rounds across a tournament, its relevance increases slightly - but remains secondary to neuromuscular and mechanical factors.
Second Translation: Points Race and Bunch Racing
System Emphasis by Event
Flying 200
Primary: ATP-PCr
Secondary: Neuromuscular efficiency
Team Sprint
Primary: ATP-PCr
Secondary: Partial glycolytic contribution
Keirin
Primary: ATP-PCr + Glycolytic
Secondary: Tactical variability
Points Race Sprint Lap
Primary: Glycolytic + Aerobic interaction
Points Race Late Attack
Primary: Glycolytic under fatigue
Where the interpretation becomes more interesting is in bunch racing.
A points race is metabolically distinct from sprint cycling.
The study gives us a clue about repeated short efforts; points racing is about repeated longer surges layered on fatigue.
- 40 km total distance.
- Sprint every 10 laps.
- Repeated 20-40 second surges.
- Breakaways lasting 30-60 seconds.
- Final sprint under accumulated fatigue.
Unlike the 6-second lab protocol, points racing repeatedly engages:
- Glycolytic metabolism.
- Intramuscular acidosis.
- Aerobic recovery between efforts.
Here, buffering capacity becomes more relevant.
Beta-alanine's documented benefits are strongest in efforts lasting roughly 30 seconds to several minutes - far closer to points race sprint laps and attacks than to flying 200 efforts.
The study itself suggests longer sprint duration or total exercise time may be necessary to observe additive benefits of combined supplementation.
Points racing fits that description more closely than the 6-second protocol.
Therefore:
- Creatine may support repeated accelerations in bunch racing.
- Beta-alanine may support buffering during sustained attacks and late-race sprint laps.
- Combined supplementation may theoretically be more relevant here than in pure sprint cycling.
But again - this is applied reasoning, not direct evidence.
The study did not test points race simulation.
Beta-Alanine vs Sodium Bicarbonate
It is worth briefly distinguishing beta-alanine from sodium bicarbonate, as both relate to buffering.
- Beta-alanine increases intracellular buffering over weeks.
- Sodium bicarbonate increases extracellular buffering acutely.
For longer efforts (1-7 minutes), bicarbonate often demonstrates stronger acute performance effects in research, but carries gastrointestinal risk and race-day variability.
Beta-alanine is not interchangeable with bicarbonate.
In sprint cycling under 10 seconds, neither is likely decisive.
In bunch racing surges lasting 20-60 seconds, buffering strategies may play a greater role - but whether chronic beta-alanine loading or acute bicarbonate dosing is preferable depends on context and tolerance.
Intracellular vs Extracellular
Beta-alanine
Increases muscle carnosine
Chronic loading (weeks)
Intracellular buffering
Sodium bicarbonate
Increases blood bicarbonate
Acute dosing (hours)
Extracellular buffering
The Limits Of Application
The study has strong methodological features:
- Randomised.
- Double-blind.
- Placebo-controlled.
However, it also has limitations:
- Amateur participants.
- Small group sizes.
- No direct muscle metabolite measurement.
- A protocol specific to 6-second ergometer sprints.
Elite athletes operate closer to physiological ceiling so relative improvements may therefore be smaller.
Most importantly, the study did not involve track cyclists, the value in what we are discussing lies in structured thinking, not direct replication.
Practical Framework: Choosing What To Use
If you want this research to change your practice, do not start by asking which supplement is "best". Start by asking what is limiting you in your event, right now.
Ask four questions:
- Duration bias: are your decisive efforts mostly 6-10 seconds, or 20-60 seconds?
- Limiter: do you fade because of metabolic strain (burn, inability to repeat), or because mechanics and timing fall apart?
- Repeatability: is your problem rep-to-rep quality inside a session, or round-to-round quality across a day?
- Ceiling: are you already highly trained, where percentage gains are likely smaller and variability matters more?
Choose with intent:
- Creatine: most sensible when repeatability of short maximal work is the priority.
- Beta-alanine: more plausible when key efforts are longer, glycolytic, and repeated under fatigue.
Bicarbonate is a separate decision: an acute race-day tool with potential upside, and real GI risk for others.
If you cannot answer the four questions, supplementation is usually premature. Fix training structure, recovery, and repeatability first.
Practical note: If you trial bicarbonate, do it in training. Use a conservative dose, plan timing, and be honest about gastrointestinal tolerance. A race-day surprise is not a marginal gain.
What Actually Decides Track Races?
If the study tells us anything useful, it is that physiology is specific.
In sprint cycling, the decisive variables are often not metabolic buffering at all, but neuromuscular coordination, torque timing, aerodynamic stability and the ability to reproduce maximal efforts under pressure.
In points racing, the picture shifts. Aerobic ceiling, recovery kinetics, glycogen availability and tactical positioning become inseparable from pure power output. The rider who can still produce 1500 watts after 35 kilometres is not simply the rider with the best buffering strategy - they are the rider with the deepest system.
Supplements operate within that system. They do not define it.
Creatine, in the context of this study, appears mechanistically aligned with repeated short maximal efforts. Beta-alanine appears more theoretically aligned with longer, glycolytic surges. The combination does not automatically amplify benefit in a 6-second laboratory model.
But the laboratory is not a velodrome.
Elite riders are closer to physiological ceiling than amateur participants. Margins are smaller. Variability matters more. And the difference between winning and losing rarely rests on a single mechanism.
Practical Implications
For dedicated sprinters:
Creatine aligns more directly with repeated maximal acceleration demands.
For bunch racers:
Buffering strategies may be more relevant during sustained surges.
For all riders:
Event demands should dictate supplementation strategy - not trends.
A More Useful Question
Perhaps the most valuable takeaway is not whether creatine and beta-alanine stack.
It is whether we are asking the right question in the first place.
The study examined what happens when two supplements are combined in a tightly controlled repeated sprint protocol. That tells us something about energy systems.
It does not tell us what will decide a keirin final.
It does not tell us what will break a points race.
It does not tell us who will hold position in the last two laps of a Madison.
Those answers sit in the interaction between physiology, mechanics, tactics and psychology.
So the more productive question is not:
"What worked in this protocol?"
It is:
"What is actually limiting this rider, in this event, right now?"
Answer that honestly, and supplementation becomes a tool rather than a trend.
And in elite track cycling, tools only matter when they fit the job.