The post-menstrual follicular window is often described as the moment where the rider can push.

That is useful, but only if it is handled with care.

After menstruation, many riders begin to feel more available. Energy improves. Pain reduces. Mood can lift. Training intent returns. The body may feel more responsive to sprint work, strength work, high-speed skill and tactical load. For track cycling, where the difference between useful work and wasted effort is often measured in fractions of a second, that matters.

But this phase should not be treated as a free pass to overload.

The follicular build phase can be a valuable performance window. It is not a guarantee. Some riders feel excellent. Others are still recovering from heavy bleeding, poor sleep, low energy intake or a difficult first part of the cycle. Current research remains cautious: menstrual-cycle phase may influence symptoms, perception and some performance-related outcomes, but the evidence does not support blunt universal rules for every athlete. Individual monitoring remains essential.

A good programme does not simply say, "This is the time to train hard."

It asks whether the rider is ready to make hard training count.

Medical And Performance Note

This guide is intended as performance education for riders and coaches. Menstrual symptoms, cycle irregularity, heavy bleeding, pain, fatigue, contraception, iron status, nutrition and supplementation should be discussed with a qualified healthcare professional, sports physician or registered sports dietitian where relevant.

For tested athletes, supplements should only be considered after a clean-sport risk assessment. UK Anti-Doping states that no supplement can be guaranteed free from banned substances, and athletes remain responsible for any prohibited substance found in their system.

The First Principle: Use The Window, Do Not Chase It

The follicular build phase often arrives with a sense of momentum.

That can be powerful. It can also be dangerous.

A rider who has struggled through cramps, bleeding, fatigue or low mood may feel suddenly clear and want to make up for everything at once. A coach may see better readiness and load the programme aggressively. A sprinter may want more starts. A pursuit rider may want more intervals. A bunch rider may want more race work.

The temptation is to treat the phase as a performance harvest.

The better approach is sharper.

Use the window. Do not chase it.

If the rider is sleeping well, fuelling properly, moving cleanly and producing good early efforts, this can be a strong time to progress training. If she is still carrying fatigue from heavy bleeding, poor recovery or under-fuelling, the phase needs to begin with rebuilding, not punishment.

A high-readiness phase is not an excuse for careless load. It is an opportunity to make the right hard work count.

What May Change During This Phase

The follicular phase begins with menstruation and continues towards ovulation. This guide focuses on the post-menstrual build window, when bleeding has usually reduced or stopped and many riders begin to feel more available.

Oestrogen generally rises through this part of the cycle while progesterone remains lower. Many athletes report improved mood, better training tolerance and a stronger sense of physical readiness in this period, although individual response varies.

Possible performance advantages can include:

  • Better perceived energy
  • Improved willingness to train hard
  • Stronger mood and confidence
  • Better tolerance of high-intensity work
  • Improved ability to absorb technical information
  • Better readiness for gym work
  • Greater appetite for tactical or competitive sessions
  • More stable training rhythm after menstruation

Possible risks can include:

  • Overconfidence
  • Trying to recover missed work too quickly
  • Increasing load before fuelling has caught up
  • Ignoring residual fatigue from heavy bleeding
  • Turning every good day into a maximal day
  • Letting better mood hide poor recovery markers
  • Underestimating the cumulative cost of sprint and gym density

The follicular build phase is not only a chance to go harder.

It is a chance to coach more precisely.

The Track Cycling Opportunity

Track cycling rewards readiness, but it also exposes impatience.

This phase can be well suited to the kind of work that demands intent: standing starts, flying efforts, high-force acceleration, team pursuit pacing, tactical sparring, keirin lead-out decisions and gym strength or power sessions.

The useful question is not simply whether the rider feels good.

The useful question is what kind of good.

Does she have speed? Force? Rhythm? Confidence? Tactical sharpness? Repeatability? Emotional control? Is she fresh enough for maximal work, or simply relieved not to feel bad?

Those are different answers.

For sprint riders, the follicular build phase may offer a useful window for:

  • Gate starts
  • Standing-start mechanics
  • Maximal acceleration
  • Flying 100s or 150s
  • Flying 200 line rehearsal
  • Gear feel
  • Match sprint scenarios
  • Keirin launch timing
  • Gym strength or power work

For pursuit riders, it may support:

  • Race-pace efforts
  • Start and settle work
  • Team pursuit changes
  • Aerobic power intervals
  • Pacing discipline
  • Long efforts with technical quality
  • Gym work where it supports the wider block

For bunch riders, it may support:

  • Repeated accelerations
  • Tactical race simulations
  • Positioning under fatigue
  • Sprint finishes
  • Attack and counter-attack work
  • Madison change timing
  • Tempo and points race decision-making

The phase can carry high-quality work.

It still needs structure.

The goal is not to throw more sessions at the rider. The goal is to place the hardest work where it has the best chance of creating adaptation.

Training Guidance: Build With Intent

A useful follicular build phase plan should do three things.

It should restore rhythm after menstruation.

It should progress load where readiness supports it.

It should avoid stacking intensity just because the rider feels better.

Good training options include:

  • High-quality sprint mechanics
  • Standing starts with full recovery
  • Flying efforts with clear speed targets
  • Tactical drills at race intensity
  • Pursuit pacing blocks
  • Team pursuit communication and change work
  • Race simulation with controlled volume
  • Max strength or power gym sessions
  • Technical work under pressure
  • Competition-style decision-making

The important word is quality.

A rider does not need endless hard work in this phase. She needs work that is hard enough, specific enough and recoverable enough to move the block forward.

Coach note

The follicular build phase is often a good time to increase quality. It is not automatically a good time to increase everything.

Managing Training Density

The original mistake in many cycle-informed training plans is simple.

They identify a useful window, then overfill it.

Track cycling already carries high neuromuscular cost. Standing starts, maximal sprints, heavy lifting, repeated accelerations and race simulations all create fatigue that may not look large in total training time. A ninety-minute session can still be brutally expensive if the work is maximal and the recoveries are long.

During this phase, the coach should manage density carefully:

  • Avoid putting maximal starts, heavy gym and high-speed flying efforts too close together without reason
  • Use full recovery where speed quality is the priority
  • Keep race simulations purposeful rather than endless
  • Track whether power and speed are repeatable, not just high once
  • Watch coordination and rhythm, not only numbers
  • Protect the best session of the week by not overloading the days around it

A strong follicular build phase is not defined by how much the rider survives.

It is defined by how much high-quality work she can absorb and repeat.

Fuelling For Higher Output

If the rider is training harder, fuelling has to rise with the work.

This is where some athletes get caught. They feel better after menstruation, training quality rises, intensity increases, but daily energy intake does not catch up. The session looks successful. The cost appears later: poor sleep, irritability, heavy legs, reduced repeatability, immune stress or a poor response to the next hard day.

The first nutritional priority is not complicated.

Match the fuel to the demand.

Useful priorities include:

  • Carbohydrate before high-intensity track sessions
  • Carbohydrate and protein after hard training
  • Regular meals across the day
  • Enough total energy to support higher load
  • Protein spread across meals
  • Iron-rich foods if bleeding has been heavy
  • Fluids and sodium when sessions are long, hot or sweat-heavy
  • Practising race-day fuelling when the body is responding well

Low energy availability is not only a performance issue. The IOC's 2023 REDs consensus describes Relative Energy Deficiency in Sport as a syndrome of harmful health and performance outcomes linked to exposure to low energy availability.

This phase can be an excellent time to train hard.

It is a poor time to under-fuel.

Iron Status After Menstruation

The follicular build phase often follows the days when bleeding has been heaviest.

That makes iron status relevant, especially for riders with heavy periods, fatigue, endurance demands, repeated high-intensity sessions or a history of low ferritin. The answer is not blind supplementation. The answer is monitoring, food quality and professional advice when needed.

Riders should consider medical or dietetic support if they experience:

  • Heavy periods
  • Unusual tiredness
  • Breathlessness
  • Poor training response
  • Persistent fatigue
  • Recurrent low ferritin
  • Dizziness or feeling unusually weak
  • Difficulty recovering from normal sessions

Food-first iron support can include:

  • Lean red meat
  • Poultry
  • Fish
  • Eggs
  • Beans
  • Lentils
  • Fortified cereals
  • Leafy greens
  • Vitamin C-rich foods alongside plant-based iron sources

Tea, coffee, calcium-rich foods and some supplements can reduce iron absorption when taken at the same time as iron-rich meals or prescribed iron. A registered sports dietitian can help build a practical routine that works around training and travel.

Do not celebrate a high-output phase while ignoring the blood markers that allow the rider to keep producing.

Supplements: Keep The Standard Clean

A follicular build phase guide should not become a supplement programme.

Some supplements may have a place in an elite athlete's plan. Creatine, caffeine, nitrates, beta-alanine, vitamin D, iron or other interventions can be relevant in specific circumstances. But none should be presented as automatic requirements for this phase of the cycle.

For tested riders, the questions are always:

  • Is there a clear need?
  • Has it been assessed by a qualified professional?
  • Is it legal in sport?
  • Has the product been batch-tested?
  • Is the benefit worth the risk?
  • Is the rider already fuelling, sleeping and recovering properly?

UKAD advises athletes to assess the need, risk and consequences before using supplements, and no guarantee can be given that a supplement is free from prohibited substances.

The best programmes do not use supplements to compensate for poor basics.

They use them carefully, selectively and within a clean-sport process.

Recovery: Do Not Waste Good Readiness

The follicular build phase can make riders feel robust.

That is useful, but it can also hide the cost of the work. When confidence is high and sessions are going well, recovery discipline often slips. Athletes stay up later, add extra work, accept another hard effort, or underplay how much the gym and track combination has taken out of them.

Good recovery in this phase is not passive.

It protects the next quality session.

Useful recovery priorities include:

  • Consistent sleep
  • Prompt post-session fuelling
  • Easy riding between high-output days
  • Mobility where it supports position and movement quality
  • Breathing or down-regulation after evening sessions
  • Monitoring soreness from gym work
  • Keeping non-essential load low around key track sessions
  • Avoiding unnecessary extra efforts at the end of good sessions

The best riders do not just train hard when they feel good.

They recover well enough to feel good again.

Mindset And Chimp Model Considerations

The follicular build phase can feel emotionally powerful.

The rider may feel more confident, more energetic and more willing to attack the work. That can be exactly what the programme needs. It can also become a trap.

Steve Peters' Chimp Model is useful here because this phase is not only about managing doubt. It is also about managing overconfidence. In the model, the Chimp represents the emotional system, the Human represents the rational and perspective-based system, and the Computer stores beliefs, memories and learned patterns that influence behaviour. Chimp Management describes the model as a mind-management framework developed by Professor Steve Peters to help people understand and manage thoughts, emotions and behaviours.

During the follicular build phase, the Chimp may be louder in a different way.

It might not say, "I cannot do this."

It might say, "I can do everything."

That confidence can be useful. The Human has to direct it.

The Chimp might say:

  • "I feel good, so I should do more."
  • "I missed work earlier in the cycle, so I need to catch up now."
  • "I am flying today, so recovery does not matter."
  • "Let's add one more effort."
  • "If I back off now, I am wasting the window."
  • "This is the week to prove everything."

The Human response needs to be clear:

  • "Feeling good is a reason to train well, not carelessly."
  • "The aim is adaptation, not emotional repayment."
  • "One excellent session is better than three overreached ones."
  • "The window is useful only if I recover from it."
  • "Confidence should sharpen decisions, not remove them."
  • "The best work today must still support the block."

The Computer matters because it stores the rider's default scripts.

If a rider believes she must always catch up after an adjusted menstrual phase, her Computer may push overtraining. If she has learned that high energy should always be converted into more work, she may ignore warning signs. If she has built better scripts, she can use confidence without being controlled by it.

Good Computer files for this phase include:

  • "Use the window."
  • "Do not chase the window."
  • "Hard work needs a purpose."
  • "More is not the same as better."
  • "Recovering is part of exploiting readiness."
  • "The strongest riders know when the session is complete."

A practical Chimp Model process for this phase:

1. Notice The Chimp

The rider names the emotional pull.

  • "I feel great and want to do more."
  • "I feel I need to catch up."
  • "I want to prove I am back."
  • "I do not want to stop while I feel good."

2. Let The Human Check The Plan

The rider or coach returns to the training purpose.

  • What is the key adaptation today?
  • Has the main work been completed?
  • Are speed, power and coordination still high?
  • Will extra work improve the block or only satisfy emotion?
  • What is scheduled tomorrow?
  • What does the rider need to recover from this session?

3. Use The Computer To Build A Better Script

The rider repeats a prepared cue.

  • "Use the window. Do not chase it."
  • "Stop while the work is still high quality."
  • "Confidence needs direction."
  • "The block matters more than the buzz."
  • "Leave the session ready to adapt."

4. Make A Clear Decision

The decision should be specific.

  • Continue as planned
  • Add nothing
  • Stop after the key efforts
  • Reduce the final volume
  • Move extra work to a better day
  • Extend recovery before the next intensity session

The Chimp Model works well in this phase when it stops confidence becoming recklessness.

Not "I feel good, so I need more."

Not "I must repay the missed work."

Not "Stopping now is weakness."

The better question is:

What decision makes this good readiness useful?

The Human does not dampen confidence. It aims it.

Coach Language During This Phase

The coach sets the boundary around good form.

If the rider looks sharp, the coach should use it. But the coach should not be seduced by it. The job is to make sure the work remains specific, recoverable and connected to the bigger block.

Good coach language includes:

  • "You look good. Let's keep the quality high."
  • "The aim is not more. The aim is better."
  • "We have the work we needed."
  • "One more effort only if it improves the session."
  • "How much will this cost tomorrow?"
  • "Are we training the plan or chasing the feeling?"
  • "Let's use this window without emptying it."

Poor coach language includes:

  • "You feel good, so let's add more."
  • "You missed work earlier, so we need to catch up."
  • "This is the phase to smash it."
  • "No point wasting this week."
  • "You can recover later."

A good follicular build phase is not about emotional momentum.

It is about disciplined progression.

When To Be Cautious

This phase often feels better, but better is not the same as fully recovered.

Be cautious if the rider has:

  • Heavy bleeding in the previous days
  • Poor sleep across menstruation
  • Low appetite or under-fuelling
  • Persistent cramps or pelvic pain
  • Dizziness or unusual fatigue
  • Low mood that has not lifted
  • Very high training stress
  • Recent illness
  • A history of low ferritin
  • Irregular or absent periods
  • A sharp jump in training load

These are not reasons to avoid training.

They are reasons to check whether the planned work is still the right work.

The follicular build phase should not be used to hide problems created earlier in the cycle.

What Coaches Should Build Into The Programme

A high-performance programme should not wait for the rider to guess how she feels.

It should build a simple process around readiness, load and response.

At minimum, the programme should include:

  • Private cycle and symptom tracking
  • A plan for the first high-load session after menstruation
  • A clear hierarchy of key sessions
  • Fuelling support for higher-output days
  • Monitoring of iron status where appropriate
  • Clean-sport checks for any supplements
  • Coach education around individual cycle response
  • A rule against automatically "catching up" missed work
  • Space for the rider to report fatigue without losing trust

Riders should know that feeling good does not mean they must empty themselves.

Coaches should know that using a performance window well requires restraint as well as ambition.

Coach And Rider Checklist

This checklist is intended as a practical trackside summary. It should not replace medical advice, individual coaching judgement or proper athlete-health support.

Before The Session

Check:

  • Has bleeding stopped or reduced?
  • Was the previous menstrual phase heavy?
  • Is the rider sleeping normally?
  • Is appetite back to normal?
  • Has fuelling matched the planned session?
  • Is there lingering pain or pelvic discomfort?
  • Is mood confident or unusually reactive?
  • Is the rider trying to catch up missed work?
  • What is the key purpose of the session?
  • What must be protected for the next hard day?

During The Warm-Up

Watch for:

  • Good rhythm
  • Clean acceleration
  • Normal coordination
  • High confidence
  • Repeatable cadence
  • Stable perceived effort
  • No lingering guarding or discomfort
  • Good technical control at speed

Ask:

  • "Do you feel sharp or just relieved to feel better?"
  • "Is the first effort normal?"
  • "Can we get quality from the planned work?"
  • "Are we progressing the block or chasing emotion?"

Training Decision

If readiness is high:

  • Complete the key work
  • Maintain full recovery between maximal efforts
  • Protect technical quality
  • Stop before quality drops
  • Keep the next session in mind

If readiness is moderate:

  • Keep the theme
  • Reduce total volume
  • Avoid unnecessary maximal efforts
  • Use controlled race-specific work
  • Review fuelling and recovery after the session

If readiness is poor:

  • Do not force the "build window"
  • Rebuild rhythm first
  • Use technical work, controlled aerobic work or mobility
  • Check sleep, fuelling, bleeding history and fatigue
  • Seek medical or dietetic support if symptoms are unusual

Good Session Options

Useful options include:

  • Standing starts
  • Flying 100s or 150s
  • Flying 200 line work
  • Sprint match-play scenarios
  • Keirin launch timing
  • Team pursuit exchanges
  • Pursuit pacing efforts
  • Repeated accelerations
  • Tactical bunch-race simulations
  • Gym strength or power work
  • Technical work under pressure

Fuelling And Recovery Checks

Confirm:

  • Carbohydrate was available before high-intensity work
  • Recovery food is planned
  • Protein is spread across the day
  • Fluids and sodium match sweat loss
  • Iron-rich foods are included regularly
  • Sleep is protected around key sessions
  • Gym soreness is monitored
  • The next hard session remains achievable

When To Pause And Get Support

Seek medical or professional support when:

  • Fatigue persists despite recovery
  • Heavy bleeding has occurred
  • Breathlessness or dizziness is present
  • Periods become irregular or absent
  • Pain continues beyond menstruation
  • Fuelling is difficult
  • Low energy availability may be present
  • Training response is unusually poor
  • Symptoms are worsening across cycles

Chimp Model Cues

When the Chimp says:

"I feel good, so I should do more."

The Human says:

"Feeling good means I can do the right work well."

When the Chimp says:

"I need to catch up."

The Human says:

"The block does not improve through emotional repayment."

When the Chimp says:

"One more effort will prove I am back."

The Human says:

"The best proof is repeatable quality."

When the Chimp says:

"Stopping now wastes the window."

The Human says:

"Stopping while the work is good protects the next adaptation."

The Standard

Use the window.

Do not chase it.

Train with intent.

Recover with discipline.

Final Coaching Position

The follicular build phase can be one of the most productive parts of the cycle.

Not because it guarantees performance, but because many riders are more available for the kind of work track cycling demands: force, speed, rhythm, tactical clarity and controlled aggression.

The best programmes use that opportunity without turning it into a trap.

They do not soften the rider because she has a cycle. They do not overload her because she feels good. They read the athlete, place the hard work well, protect the next session and keep the whole block moving.

Track cycling rewards the rider who can produce quality repeatedly.

The follicular build phase can help build that.

Use the window. Do not chase it.