Sergio Borges X Training - Triathlon, La Jolla, CA (2026)

02/19/2026

Aging is not the problem.
Losing strength, energy and independence is.

That’s exactly why I created my Longevity Program.

This program is designed to help you stay strong, mobile, active and confident for decades — not just months.

It’s not about extreme training.
It’s about smart training for real life.

We focus on:
✔ Strength & mobility
✔ Energy & vitality
✔ Injury prevention
✔ Building sustainable habits
✔ Staying active and independent after 40

This is for you if you want to:
• Feel stronger year after year
• Move without pain
• Stay athletic as you age
• Improve your quality of life

Available 1-on-1 and Online 🌎

Send me a DM with the word LONGEVITY and I’ll send you the details.

02/16/2026

The Biggest Mistake Triathletes Make Before the Season Starts

Every year it happens.

The weather improves. Race registrations open. Motivation spikes.

And thousands of triathletes make the same mistake:

They start chasing volume too early.

More miles. Longer rides. Longer runs. More swimming.

It feels productive.

It feels like preparation.

It feels like fitness is coming back.

But in reality, most athletes are building their season on the weakest possible foundation.

And that foundation usually collapses by mid-season.

Why Early Season Motivation Can Backfire

After the off-season, athletes are excited and eager to “get back in shape.”

The natural instinct is simple:

“I need to rebuild my endurance.”
So training becomes longer instead of smarter.

But here’s the problem:

Your cardiovascular system adapts much faster than your muscles, tendons, ligaments, and joints.

Which means:

Fitness improves quickly

Durability improves slowly

And that mismatch is where injuries and burnout are born.

This is why many athletes feel great in March… and are injured by June.

Fitness Is Not the Same as Durability

This is one of the most misunderstood concepts in endurance sports.

Your heart and lungs can gain fitness in weeks.

Your connective tissues take months.

Tendons and ligaments adapt up to 10x slower than aerobic fitness.

So when you rush into volume:

Your engine gets stronger

Your chassis stays weak

It’s like putting a race engine into a car with bicycle brakes.

Sooner or later, something breaks.

The Real Goal of Pre-Season Training

The early season is not about endurance.

It’s about durability.

Durability is what allows you to:

Train consistently

Absorb workload

Avoid injuries

Improve month after month

Consistency — not heroic workouts — is what builds performance.

And durability is what makes consistency possible.

The Training Pyramid Most Athletes Get Backwards

Most triathletes build their season like this:

1️⃣ Volume

2️⃣ Intensity

3️⃣ Strength & technique (if time allows)

But high-level athletes — and athletes who stay healthy for decades — do the opposite.

The correct order looks like this:

1️⃣ Technique

2️⃣ Strength & mobility

3️⃣ Speed & neuromuscular work

4️⃣ Endurance volume

This is the foundation of Inverted Periodization.

And it works because it respects how the body actually adapts.

Why Strength Comes Before Endurance

Endurance training is repetitive.

Very repetitive.

Every pedal stroke, every stride, every swim stroke places stress on the same tissues over and over again.

Without strength:

Running becomes impact without protection

Cycling becomes load without stability

Swimming becomes movement without control

Strength training provides:

Joint stability

Tendon resilience

Better biomechanics

Improved force production

Injury resistance

It is not optional.

It is structural preparation.

Why Technique Should Come First

Poor technique becomes more expensive as volume increases.

When athletes skip technique work:

More swimming reinforces bad habits

More running reinforces inefficient stride

More cycling reinforces poor posture and muscle imbalances

Early season technique work gives the biggest return on investment because:

Fatigue is low

Focus is high

Movement patterns are easier to change

Later in the season, athletes are too tired and too busy racing to fix fundamentals.

Speed Before Endurance? Yes.

This surprises many athletes.

Short, controlled intensity early in the season:

Improves neuromuscular coordination

Builds efficiency

Raises performance ceiling

Requires far less training volume

You don’t need huge endurance to handle short, fast efforts.

But you do need speed and efficiency before big endurance becomes effective.

The Cost of Getting This Wrong

Athletes who rush into volume often experience:

Persistent fatigue by mid-season

Plateaued performance

Recurring injuries

Loss of motivation

Poor race results despite high training hours

The frustrating part?

They often believe they need even more training to fix the problem.

When the real issue is that they skipped the foundation phase.

The Smart Way to Start the Season

The early season should prioritize:

✔ Strength training 2–3x per week

✔ Mobility and movement quality

✔ Swim technique focus

✔ Short, controlled intensity sessions

✔ Gradual volume progression

This approach creates athletes who:

Stay healthy

Train consistently

Peak at the right time

Improve year after year

The Long Game

Anyone can train hard for a few months.

The real goal is to train well for years and decades.

Athletes who succeed long-term don’t rush fitness.

They build foundations.

They respect adaptation timelines.

They prioritize durability first — and performance follows.

Final Thought

When the season approaches, don’t ask:

“How much training can I do?”

Ask:

“How prepared is my body to handle the training I want to do?”

Build the foundation now.

Your future self — and your race results — will thank you.

01/29/2026

Longevity Triathlon – Train for Health and Race for Fun

For decades, triathlon has been marketed as the ultimate test of discipline, suffering, and sacrifice. Long hours, constant fatigue, strict routines, and the idea that the more you do, the better you’ll become.

For a while, that model works.

Then something changes.

Injuries start appearing more frequently. Recovery slows down. Motivation fades. Life responsibilities increase. And suddenly, what once felt empowering begins to feel heavy, stressful, and unsustainable.

This is where many athletes quietly step away — not because they stopped loving the sport, but because the sport stopped fitting their lives.

That reality is exactly why my coaching philosophy has evolved into what I call Longevity Triathlon.

Longevity Triathlon is not about lowering standards.
It’s not about “taking it easy.”
And it’s definitely not about giving up on performance.

It’s about redefining what successful training actually looks like — especially as we age.

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Why Longevity Must Be the New Performance Metric

Traditional endurance coaching often focuses on short-term outcomes:
• Faster times
• Higher training loads
• Bigger weeks
• Bigger numbers

But long-term success isn’t built on peak weeks.
It’s built on years of consistent, intelligent training.

The best athletes — at any age — are not the ones who train the hardest for a season.
They are the ones who can train well for decades.

Longevity Triathlon places health as the primary objective because health is what allows performance to exist in the first place.

When health improves:
• Consistency improves
• Confidence improves
• Performance improves

This approach recognizes a simple truth:

An athlete who stays healthy always outperforms an athlete who is constantly injured — even if the injured athlete trains more hours.

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Athleticism Before Endurance

Endurance alone does not create resilience.

You can swim, bike, and run thousands of hours and still develop:
• Poor mobility
• Weak stabilizing muscles
• Faulty movement patterns
• Chronic pain

That’s why Longevity Triathlon starts with a different foundation: athleticism.

Being athletic means:
• You can generate force
• You can absorb force
• You can move efficiently
• You can adapt to stress

Strength, coordination, balance, and mobility are not accessories — they are requirements for long-term endurance success.

This is why my coaching prioritizes:
• Structured strength training
• Intentional mobility work
• Movement quality
• Running mechanics and posture
• Joint health and connective tissue resilience

An athletic body:
• Tolerates training better
• Recovers faster
• Moves with less wasted energy
• Ages more gracefully

Endurance is what you do.
Athleticism is what supports it.

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Strength Training Is Not Optional

One of the most common mistakes endurance athletes make — especially as they age — is treating strength training as optional or secondary.

It isn’t.

After the age of 30, we naturally begin losing muscle mass and power if we don’t actively train to preserve them. Endurance training alone does not stop this process.

Strength training:
• Protects joints
• Improves economy
• Reduces injury risk
• Maintains power and speed
• Supports metabolic and hormonal health

In Longevity Triathlon, strength training is:
• Purposeful
• Efficient
• Integrated with endurance work
• Adapted to the athlete’s age, experience, and goals

This is not bodybuilding.
It’s not about aesthetics.
It’s about function, durability, and confidence.

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Mobility: The Silent Performance Multiplier

Mobility is often misunderstood.

It’s not about stretching endlessly or becoming hyper-flexible.
It’s about having usable range of motion where you need it.

Good mobility allows:
• Better posture
• Better breathing mechanics
• Cleaner movement patterns
• Less compensation and strain

As athletes age, restricted mobility becomes one of the biggest performance limiters — not lack of fitness.

Longevity Triathlon emphasizes:
• Hip mobility for running and cycling
• Ankle mobility for impact absorption
• Thoracic spine mobility for breathing and posture
• Shoulder mobility for swimming efficiency

Mobility doesn’t just reduce pain — it improves performance while reducing effort.

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You Don’t Need More Hours — You Need Better Structure

One of the most damaging myths in endurance sport is the belief that more hours automatically lead to better results.

Most athletes don’t need more training.
They need better organization.

Longevity Triathlon focuses on:
• Clear purpose for every session
• Minimal junk volume
• True easy days
• Controlled hard days
• Strategic recovery

This approach respects real life.

Most athletes:
• Have careers
• Have families
• Want energy outside of training

Training should enhance life, not dominate it.

When training volume is appropriate and purposeful:
• Recovery improves
• Motivation stays high
• Injury risk drops
• Consistency increases

Consistency beats hero weeks every time.

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Nutrition That Works in the Real World

Longevity nutrition is not about perfection.

It’s about sustainability.

Extreme diets, constant tracking, and rigid rules may work temporarily, but they rarely last — and they often create unnecessary stress.

Longevity-focused nutrition emphasizes:
• Adequate protein intake to preserve muscle mass
• Carbohydrates timed around training
• Hydration and electrolyte balance
• Recovery-focused meals
• Flexibility and enjoyment

The goal is not to micromanage food.
The goal is to support training, health, and longevity.

A good nutrition plan:
• Fuels performance
• Supports long-term health markers
• Fits busy schedules
• Can be repeated consistently

Nutrition should serve your life — not control it.

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Racing as a Tool for Motivation, Not Destruction

Racing still matters.

But in Longevity Triathlon, racing has a different role.

Races are not meant to:
• Destroy your body
• Create anxiety
• Leave you exhausted for weeks

Races are tools that:
• Provide structure
• Create focus
• Maintain motivation
• Give training meaning

Racing should be fun.

It should challenge you — but not break you.

The objective is to:
• Show up prepared
• Execute intelligently
• Finish proud
• Recover quickly

You don’t need podiums to benefit from racing.
You just need a goal that excites you and keeps you engaged.

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Training for Decades, Not Seasons

One of the most powerful shifts in Longevity Triathlon is moving from short-term thinking to long-term thinking.

Instead of asking:
“How fit can I get this season?”

We ask:
“How well can I train for the next 10, 20, or 30 years?”

That mindset changes everything:
• Training intensity
• Recovery priorities
• Strength emphasis
• Race selection
• Lifestyle balance

Longevity-focused athletes don’t train less — they train smarter.

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It’s Never Too Late to Start

Perhaps the most important message behind Longevity Triathlon is this:

It is never too late to become healthier, stronger, and more athletic.

I work with athletes who:
• Started endurance sports later in life
• Regained strength they thought was gone
• Improved mobility they assumed was lost forever
• Built confidence through smart training

The body adapts at any age — when trained correctly.

Longevity Triathlon is not about chasing youth.
It’s about protecting your future self.

Every session becomes an investment:
• In independence
• In confidence
• In health
• In quality of life

⸻

Train for Health. Race for Fun.

That phrase defines the entire philosophy.

Train to:
• Move well
• Stay strong
• Avoid injury
• Support long-term health

Race to:
• Stay motivated
• Celebrate progress
• Give training meaning
• Enjoy the process

You don’t need extreme volume.
You don’t need obsession.
You need structure, consistency, and enjoyment.

When training supports your life instead of competing with it, fitness becomes sustainable — and that’s real longevity.

01/19/2026

Predict Your Ironman® & Ironman® 70.3 Bike Split

Before Race Day. Before Guessing. Before Overbiking.

Most athletes guess their bike split.

I don’t.

Using aerodynamics, physics, and your FTP, I predict your Ironman or Ironman 70.3 bike time based on the exact course you’re racing — not averages, not generic pacing charts.

This is individualized performance modeling, built for athletes who want precision.

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Why This Matters

At Ironman speeds:
• Aerodynamics matter more than FTP
• Small pacing mistakes cost minutes
• Overbiking ruins the run

Knowing what time is actually achievable changes how you train, pace, and race.

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How the Bike Split Prediction Works

This service combines three critical performance variables:

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1️⃣ Aerodynamics Analysis (CdA Estimation)

You provide:
• One side photo
• One front photo
in your real race position

From these images, I estimate your CdA (aerodynamic drag) based on:
• Frontal area
• Arm and shoulder width
• Head position and torso angle
• Bike and cockpit setup

Aerodynamics is the biggest determinant of speed — and the most ignored.

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2️⃣ FTP-Based Race Power Modeling

Using your FTP, I determine:
• Sustainable Ironman or 70.3 race power
• Realistic intensity targets
• Power ranges that protect your run

This converts FTP into race ex*****on, not ego pacing.

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3️⃣ Full Course Analysis (I Do the Work)

You simply provide:
• The race name or course link

I analyze the course for you, including:
• Elevation profile
• Terrain and rolling resistance
• Speed variation across the course
• Course-specific demands

You don’t need to interpret files or profiles — I deliver the insights.

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What You Receive
• ✔️ Predicted bike split time
• ✔️ Expected average speed
• ✔️ FTP-based race power targets
• ✔️ Course-specific pacing guidance
• ✔️ Optional position & aero recommendations for free speed

This is not a spreadsheet.
It’s a race-ready decision tool.

⸻

Who This Is For
• Ironman & Ironman 70.3 athletes
• Athletes chasing PRs, Kona, or Worlds slots
• Athletes who want smarter racing, not just higher watts
• Coaches who want objective pacing clarity

⸻

What You Need to Get Started
• Your FTP
• Two bike photos (front & side)
• Your race name

That’s it.

⸻

Ready to Stop Guessing?

📩 Send your details and I’ll show you what time is truly possible — and how to ride it.

Precision beats hope.
Smart pacing beats brute force.

01/18/2026

Heat Training: A Simple Edge Elite Endurance Athletes Use Year-Round 🔥

Many endurance athletes think heat training is only for races in hot conditions.
That’s a mistake.

Pro athletes use heat exposure all year round as a performance tool — even when racing in cool weather.

Why?

Because heat adaptation improves how your body handles stress.

Key performance benefits:
• Increased plasma volume (more efficient blood delivery)
• Lower heart rate at the same pace or power
• Improved thermoregulation
• Better tolerance to hard efforts
• Stronger mental resilience under fatigue

In simple terms:
👉 Your “normal” training starts to feel easier.

And the best part?
You don’t need fancy equipment or a heat chamber.

Simple ways to apply heat training:
• Extra clothing during easy aerobic sessions
• Post-workout sauna or hot bath (15–30 min)
• Training indoors without excessive fan cooling
• Short heat exposures after key sessions

The key is low intensity + controlled stress.
Heat training is not about crushing workouts — it’s about adapting your physiology.

Used consistently and intelligently, heat becomes a legal, low-cost performance enhancer.

Train smart. Adapt deeper. Perform better.

TrainSmarter EnduranceCoaching

01/13/2026

How to Use Breathing and Muscle Sensation to Guide Your Triathlon Training

In a world full of watches, sensors, power, pace, and metrics, many athletes forget the two most accurate tools the body offers in real time: breathing and muscle sensation.

Unlike numbers, they reflect exactly what is happening right now — accumulated fatigue, true effort level, efficiency, and readiness.

Learning how to “read” these signals is what separates consistent athletes from those who are constantly tired or injured.

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1. Breathing + Muscle Sensation = Real Intensity Control

Proper intensity is not defined only by heart-rate zones or watts. It has to match what you feel.

Combined practical guidelines

Easy / Aerobic (Z1 – low Z2)
• Calm, rhythmic breathing, often nasal
• Able to speak in full sentences
• Muscles relaxed, no tension
• Feeling like you could go much longer

👉 Aerobic base, recovery, longevity

Moderate / Endurance (Z2 – low Z3)
• Deeper breathing, still controlled
• Able to speak short phrases
• Muscles working, but no burning
• Sense of “sustainable work”

👉 Where efficiency is built

Threshold / Race pace (high Z3 – Z4)
• Strong, intentional breathing
• Talking becomes difficult
• Muscles begin to burn, but don’t lock up
• High effort, yet controllable

👉 Race specificity

High intensity (Z5)
• Rapid, aggressive breathing
• No speech possible
• Muscles feel hard, coordination is challenged
• Short duration

👉 Neuromuscular and VO₂max stimulus

If breathing loses rhythm or muscles become rigid too early, you’ve gone past the target — even if the numbers say otherwise.

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2. Swimming: Breathing Leads, Muscle Sensation Confirms

In the water, breathing sets the rhythm and muscle sensation confirms whether technique is correct.

Key points
• Exhale continuously underwater
• Never hold your breath
• Inhale without lifting the head
• Shoulders, neck, and arms should stay relaxed

Correct muscle sensation
• Arms “anchor” the water instead of pulling hard
• Core engaged but not rigid
• Legs relaxed, no tense kicking

If the arms burn early or the neck tightens, the problem usually starts with breathing.

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3. Cycling: Breathing Prevents Excess, Muscles Reveal Errors

On the bike, it’s easy to overdo it — especially on climbs, into headwinds, or in groups.

Use breathing to
• Control effort on climbs
• Avoid unnecessary power spikes
• Maintain consistency on long rides

Use muscle sensation to
• Detect excessive quad loading
• Notice loss of pedal fluidity
• Adjust cadence before deep fatigue sets in

“Heavy” legs + shallow breathing = intensity above the plan.

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4. Running: Where Breathing and Muscles Don’t Lie

In running, any mistake shows up quickly.

Breathing-to-stride ratios

• Easy: 3:3 or 4:4
• Moderate: 2:2
• Hard: 2:1 or natural

Ideal muscle sensation

• Elastic stride
• Relaxed hips
• Active but not locked calves
• No excessive tension in shoulders or jaw

If breathing speeds up before the legs tire, you’re running too fast.
If the legs lock up before breathing rises, efficiency is lacking or fatigue has accumulated.

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5. Muscle Sensation as a Recovery Indicator

Muscles speak before the watch does.

Signs of good recovery
• Feeling light during warm-up
• Muscles respond quickly
• Breathing returns to normal fast after training

Warning signs
• Persistent stiffness
• Early burning at easy paces
• Poor coordination
• Elevated breathing at low intensities

These signs often appear before drops in HRV or increases in resting heart rate.

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6. Technology Helps, the Body Decides

Watches and metrics are great allies — but they don’t replace body awareness.

Athletes who train with attention to breathing and muscle sensation:
• Miss intensity targets less often
• Accumulate more high-quality volume
• Get injured less
• Execute better on race day
• Maintain performance for many years

The body is always talking.
Breathing and muscles are the first language.

Learn to listen.

01/09/2026

Why the Best in the World Still Trusts Feel: Lessons from Ironman World Champion Casper Stornes

In an era where endurance sport is dominated by data, dashboards, and wearables, it’s easy to believe that performance is built purely on numbers. Heart rate variability, power curves, pace zones, lactate thresholds, real-time metrics streamed straight to your wrist — we’ve never had more information.

And yet, one of the most telling examples in modern triathlon goes in the opposite direction.

The current Ironman world champion from Norway, Casper Stornes, is known not just for embracing technology, but for something far more fundamental: a deep reliance on perceived effort.

This isn’t a rejection of data. It’s an understanding of its limits.

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The Human Body Is Not a Machine

Technology assumes the body behaves like a predictable engine. Input X watts, output Y performance. Stay in zone, get results.

But the human body doesn’t work that way.

Sleep quality, stress, nutrition, heat, hydration, emotional load, and accumulated fatigue all shift how your body responds on any given day. The same heart rate or power number can feel effortless one day and brutally hard the next.

Casper’s approach acknowledges a simple truth: numbers don’t experience effort — you do.

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Perceived Effort Is a Skill, Not a Guess

Many athletes misunderstand perceived effort as “training by feel” in a vague or unstructured way. At the elite level, it’s the opposite.

Perceived effort is a refined skill built over years of intentional practice.

It’s knowing:
• How controlled breathing should feel at Ironman pace
• How muscular tension changes when you’re pushing just beyond sustainable
• When discomfort is productive — and when it’s a warning
• How effort shifts late in a race when fatigue, heat, and fueling intersect

Casper didn’t wake up one day and decide to ignore numbers. He developed an internal calibration so precise that his sensations often outperform external metrics.

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Why Feel Wins on Race Day

On race day, conditions are never “perfect”:
• Heat rises
• Winds change
• Courses differ
• Sensors drift
• Adrenaline distorts early pacing

Athletes who blindly chase numbers often implode when reality doesn’t match the plan.

Athletes who trust feel adjust in real time.

Breathing becomes the governor. Muscle feedback becomes the guide. Awareness replaces rigid control.

That adaptability is often the difference between surviving a race and winning it.

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Technology Is a Tool — Not the Decision Maker

The lesson from Casper Stornes isn’t anti-tech. It’s anti-dependence.

Technology should inform training, validate trends, and support learning. But it should never replace awareness.

When athletes lose connection to how effort feels, they lose their most reliable performance compass.

The best in the world don’t train by numbers.
They train with them — while listening first to the body.

⸻

The Path to the Top Starts Inside

If you want to reach your potential, don’t just upgrade your gadgets. Upgrade your awareness.

Learn your breathing.
Learn your muscular signals.
Learn how effort evolves over time.

Because when numbers fail — and eventually, they will — your body will still be talking.

The champions are the ones who know how to listen.

01/07/2026

How Fasting Has Helped Me in Triathlon — 10 Years of Practical Experience

Intermittent fasting is often discussed in extremes.
Some see it as a miracle. Others as a performance killer.

After more than 10 years using fasting strategically alongside high-level triathlon training and coaching, my view is simple:

Fasting is not a rule. It’s a tool.

And like any tool, its value depends on how, when, and why you use it.

What I’ve Personally Gained From Fasting
Over the years, fasting has delivered several consistent benefits for me:

1. More stable energy throughout the day
Without constant eating, I experience fewer blood-sugar swings. Energy levels are steadier during training, work, and daily life.

2. Easier weight management
Fasting simplifies nutrition. Fewer eating windows often mean better appetite control and less mindless snacking — without calorie obsession.

3. Improved sleep quality
Finishing meals earlier and reducing nighttime digestion has noticeably improved my sleep and recovery.

4. Better metabolic flexibility
The ability to efficiently shift between fat and carbohydrate as fuel is critical in long-course triathlon. Strategic fasting helped improve that flexibility and reduced my dependency on constant carbohydrate intake.

5. Mental clarity and focus
Training, coaching decisions, and daily tasks are often sharper when the body isn’t always digesting food.

What Fasting Is Not
This part matters.

Fasting does not mean:
• Training hard while under-fueled all the time
• Skipping fuel for key sessions or race day
• Ignoring individual differences
• Following dogma or trends

In triathlon, performance comes from appropriate fueling matched to training demands — not from extremes.

There are phases where fasting works very well.
There are phases where it should not be used at all.

The Real Takeaway
Endurance performance is about strategy, not ideology.

Used intelligently, fasting can:
• Support body composition
• Improve metabolic efficiency
• Enhance recovery and daily energy
• Simplify nutrition habits

Used incorrectly, it can compromise training quality and long-term progress.

As a coach, my job isn’t to promote fasting — it’s to help athletes understand when it fits, when it doesn’t, and how to apply it safely.

Train with intention.
Fuel with purpose.
Avoid dogma.

If you’re curious about how fasting might (or might not) fit into your training structure, that conversation should always be individualized.

12/21/2025

Using Carbon Plate Running Shoes the Right Way

Carbon-plated shoes are a performance tool, not a default training shoe. Used correctly, they can improve race-day efficiency. Used incorrectly, they can increase injury risk and blunt long-term development.

Below are evidence-based, field-tested guidelines.

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1. Who Benefits the Most

Best responders:
• Well-trained runners with:
• Stable mechanics
• Adequate foot, ankle, and calf strength
• Consistent training history (no recent stress injuries)
• Athletes racing:
• 10 km to marathon
• Olympic → Ironman triathlon run legs
• Athletes who already tolerate:
• Moderate-to-high training intensity
• Faster paces without breakdown

Less predictable responders:
• New runners
• Athletes returning from injury
• Athletes with weak foot intrinsic strength or limited ankle mobility
• Heavier runners with history of bone stress injuries

Key coaching principle: Carbon shoes amplify what the athlete already has — good or bad.

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2. Who Should Be Cautious (or Delay Use)

Use caution or delay introduction if the athlete has:
• Recent or recurring:
• Metatarsal stress reactions
• Navicular stress injuries
• Achilles tendinopathy
• Poor single-leg stability
• Very low cadence / high braking forces
• No prior exposure to stiff, rockered shoes

For these athletes, strength → mechanics → carbon, not the reverse.

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3. When to Use Carbon Shoes

Recommended use cases:
• Races
• Race-pace sessions
• Key tempo runs
• Brick sessions at goal pace (triathletes)
• Occasional economy-focused workouts

Avoid using for:
• Easy aerobic runs
• Recovery runs
• Long slow volume
• Daily mileage

Research shows carbon shoes shift load from muscles to passive structures.
Daily use increases bone and joint stress without added benefit.

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4. How Often to Use Them (Rule of Thumb)
• Maximum: 1–2 runs per week
• Ideal: ~10–20% of weekly run volume
• Never: Back-to-back days early in adaptation

For most age-group athletes:
• 1 quality session or
• 1 race-specific brick per week is enough

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5. Transition & Adaptation Protocol (Critical)

Minimum adaptation timeline: 4–6 weeks

Week 1–2
• 10–15 min at race pace inside a normal run
• No long continuous efforts

Week 3–4
• Short tempo intervals
• Controlled bricks (triathletes)

Week 5+
• Full race-pace sessions
• Race simulation runs

🚫 Do not debut carbon shoes on race day without prior exposure.

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6. Strength Work That Should Accompany Carbon Shoe Use

To reduce injury risk, pair carbon shoes with:
• Calf strength (bent & straight knee)
• Foot intrinsic exercises
• Tibialis posterior strengthening
• Single-leg stability drills
• Hip extension strength

Carbon shoes reduce muscle demand — you must replace that stimulus elsewhere.

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7. Plate Design Matters (Coach Insight)

Not all carbon shoes behave the same:
• Aggressive rocker + stiff plate → more forefoot loading
• Curved plates → smoother transition, often better tolerated
• Higher stack + soft foam → more unstable for some athletes

Coaching takeaway:
Let the athlete test multiple models. Do not assume “carbon = better.”

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8. Key Coaching Message to Athletes

“Carbon shoes don’t make you fit — they help you express fitness.”

They are:
• A multiplier, not a shortcut
• A race tool, not a training solution
• A specific stressor that must be managed

Sergio Borges X Training - Triathlon

02/19/2026

02/16/2026

01/29/2026

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