The Set & Rep Journal πŸ§ͺπŸ“ŠπŸ“ˆ
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Exercise Physiology research, simplified βœ…

One study,one practical take away -for
everyone who lifts πŸ’ͺπŸ§ͺπŸ“ŠπŸ“ˆ
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Welcome to The Set & Rep Journal πŸ“–πŸ‹οΈ

One study. One practical takeaway. No noise.

πŸ‘‹ Who we are

I'm an exercise physiologist. My job is to read the science so you don't have to β€” but also to make sure you actually understand it.

No 30-page papers. No overhyped headlines. Just real research, broken down simply.

🎯 Our purpose

To bridge the gap between the lab and the gym β€” especially when it comes to resistance training.

Every post will cover one peer-reviewed study on:

Muscle growth πŸ’ͺ

Strength development πŸ‹οΈ

Training variables (sets, reps, load, rest, frequency)

And everything in between

🧠 How we do it

Each study will include:

What they actually did πŸ§ͺ

What they actually found πŸ“Š

What it means for YOUR training 🎯

No bro-science. No cherry‑picking. No fear‑mongering.

πŸ” What you can expect

A new study every [week / 15 days β€” choose your pace]

Simple infographics or AI‑generated visuals πŸ–Ό

Practical applications you can use in your next workout

πŸ“Œ Our first study is coming soon

Hint: it's a classic β€” and it answers the question "how many sets do I really need?"

Until then β€” welcome. Grab your notebook. Your journal starts now.

β€” Your host, exercise physiologist & lifelong student of strength

The Set & Rep Journal
Resistance training, decoded.
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The Set & Rep Journal πŸ§ͺπŸ“ŠπŸ“ˆ
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πŸ“š The Set & Rep Journal | Weekly Evidence-Based Insight No1.

How do muscles actually grow? And what’s the best way to train for it?

This week, we break down a classic paper by Brad Schoenfeld on the mechanisms of muscle hypertrophy**β€”one of the most important topics in exercise physiology.

πŸ”¬ **The science (simplified):

Muscle growth isn’t driven by just one factor. The research highlights three key mechanisms:

β€’ Mechanical Tension – Lifting heavy loads creates high tension in muscle fibers, which is a primary driver of growth.
β€’ Muscle Damage – Training causes micro-damage, which can stimulate repair and adaptation (though it’s not the main driver).
β€’ Metabolic Stress – The β€œburn” you feel (from higher reps, shorter rest) contributes through cellular swelling and metabolic byproducts.

πŸ’‘ So what does this mean for your training?

There’s no single β€œperfect” method.

βœ”οΈ Heavy weights (like powerlifting) β†’ maximize mechanical tension
βœ”οΈ Moderate weights + shorter rest (like bodybuilding) β†’ increase metabolic stress
βœ”οΈ Both approaches can build muscleβ€”just through different pathways

πŸ‘‰ Key takeaway:
The most effective programs combine all three mechanisms through smart programming:

* Progressive overload
* Sufficient training volume
* Varied rep ranges and rest intervals

πŸ“ˆ Bottom line:
You don’t need to pick sides. The best results come from understanding the scienceβ€”and applying it.

---

Follow *The Set & Rep Journal* for weekly breakdowns of research that actually improves your training.

#ExerciseScience #Hypertrophy #StrengthTraining #EvidenceBased #FitnessResearch #GymScience #ResistanceTraining
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πŸ“š **THE SET & REP JOURNAL – WEEKLY STUDY BREAKDOWN** No2

πŸ”₯ **Does training closer to failure REALLY matter?**

This week we dive into a brand-new meta-analysis (2024) exploring the dose–response relationship between proximity to failure (RIR), strength, and muscle hypertrophy.

---

🧠 Firstβ€”what is RIR?
RIR = *Reps In Reserve*
πŸ‘‰ 0 RIR = you hit failure
πŸ‘‰ 2 RIR = you could’ve done 2 more reps

---

πŸ”¬ **WHAT THE SCIENCE FOUND:**

πŸ‹οΈ 1. Strength Gains β†’ NOT very sensitive to RIR

* Strength improved across a wide range of RIR
* Whether you stopped at 0, 2, or even 4+ RIR…
πŸ‘‰ Results were similar
* All confidence intervals crossed β€œno effect” β†’ meaning no clear advantage

πŸ’‘ Translation:
You don’t NEED to train to failure to get stronger.

---

πŸ’ͺ **2. Muscle Hypertrophy β†’ VERY dependent on RIR**

* Clear dose-response relationship
* The closer you train to failure…
➑️ the more muscle growth you get
* Models showed negative slopes β†’ fewer RIR = more hypertrophy

πŸ’‘ Translation:
πŸ‘‰ Effort matters A LOT for muscle growth.

---

πŸ“Š WHY THIS HAPPENS:

Closer to failure =
βœ”οΈ Higher motor unit recruitment
βœ”οΈ Greater fiber activation
βœ”οΈ More mechanical tension across all fibers

πŸ‘‰ Especially important for maximizing hypertrophy

---

βš–οΈ PRACTICAL APPLICATION:

πŸ‹οΈβ€β™‚οΈ For Strength:

* Stay 1–4 RIR most of the time
* Focus on:
βœ”οΈ Progressive overload
βœ”οΈ Good technique
βœ”οΈ Managing fatigue

πŸ”₯ For Hypertrophy:

* Spend most sets around 0–2 RIR
* Push close to failure (but not always failure)
* Combine with:
βœ”οΈ Enough volume
βœ”οΈ Controlled tempo

---

🚨 KEY TAKEAWAY:

πŸ‘‰ Strength β‰  Hypertrophy when it comes to effort

πŸ’ͺ Strength:
β€œTrain smart, not always to failure”

πŸ”₯ Hypertrophy:
β€œTrain HARD, close to failure”

---

πŸ“ˆ BOTTOM LINE:
The best programs don’t guess effort…
They CONTROL it using RIR.

---

Follow for weekly breakdowns of real research that actually improves your training πŸ”¬πŸ’ͺ

#Hypertrophy #StrengthTraining #ExerciseScience #RIR #EvidenceBasedFitness #GymScience #TrainingToFailure
πŸ“š **THE SET & REP JOURNAL – WEEKLY STUDY BREAKDOWN**
No3
πŸ”₯ **Which HIIT method is actually better? Or… are they all the same?**

This week we break down a study comparing 3 different high-intensity training protocols and their effects on:

πŸ’ͺ Body composition
❀️ Cardiorespiratory fitness
🧠 Neuromuscular performance

---

## πŸ”¬ **THE PROTOCOLS (8 WEEKS)**

πŸƒβ€β™‚οΈ VICT (Continuous Training)
β€’ 28 min steady at ~70% VOβ‚‚peak
β€’ ❌ No rest (continuous effort)

⏱️ LI-HIIT (Long Intervals)
β€’ 6 Γ— 2 min @ ~85% VOβ‚‚peak
β€’ πŸ•’ Rest: ~1–3 min between intervals
β€’ 😡 Higher perceived effort (RPE ↑)

⚑️ SI-HIIT (Short Intervals)
β€’ 12 Γ— 30 sec @ ~125% max power
β€’ ⏳ Rest: ~30–60 sec between intervals
β€’ 😌 Lower RPE despite high intensity bursts

---

## πŸ“Š **WHAT HAPPENED AFTER 8 WEEKS?**

πŸ“ˆ VOβ‚‚peak β†’ ↑ 14%
πŸ’ͺ Muscle endurance β†’ ↑ 12%
πŸ‹οΈ Strength (knee extensors) β†’ ↑ 1–3%
🧠 Neural activation β†’ ↑ 1–3%
βš–οΈ Lean mass β†’ ↑ 1–3%

🚨 No significant differences between protocols

πŸ‘‰ Yes… ALL methods worked equally well.

---

## 🧠 KEY INSIGHT

Even though:

* LI-HIIT felt harder 😡
* SI-HIIT was shorter ⏱️
* VICT was continuous πŸƒβ€β™‚οΈ

πŸ‘‰ They all produced similar physiological adaptations

---

## ⏱️ WHY REST STRUCTURE MATTERS

Different rest = different stimulus:

β€’ Short rest (SI-HIIT) β†’ more metabolic stress πŸ”₯
β€’ Longer rest (LI-HIIT) β†’ higher sustained intensity ❀️
β€’ No rest (VICT) β†’ steady cardiovascular load πŸƒβ€β™‚οΈ

πŸ‘‰ But when total stimulus is matched…
your body adapts similarly

---

## πŸ’‘ **PRACTICAL APPLICATION**

⏳ Short on time?
β†’ SI-HIIT (~12 min) = efficient & effective

πŸ”₯ Want a tough session?
β†’ LI-HIIT = higher effort (RPE ↑)

πŸƒβ€β™‚οΈ Prefer steady training?
β†’ VICT = simple & reliable

---

## πŸš€ BOTTOM LINE

πŸ‘‰ There is NO β€œbest” HIIT method
πŸ‘‰ The best method is the one you can stick to consistently

---

πŸ“ˆ **Train smart. Stay consistent. Let science guide you.**

Follow The Set & Rep Journal for weekly research breakdowns πŸ”¬πŸ’ͺ

#HIIT #ExerciseScience #VO2max #CardioTraining #FitnessResearch #EvidenceBased #EnduranceTraining
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The Set & Rep Journal πŸ§ͺπŸ“ŠπŸ“ˆ
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πŸ“© Extra Insight from The Set & Rep Journal

After some great feedback and questions from our subscribers πŸ™Œ, one topic came up that we didn’t explicitly cover in the infographic:

πŸ‘‰ β€œHow often should I perform these HIIT protocols?”

Let’s break it down with science + practical application πŸ”¬πŸ‘‡

---

## 🧠 What did the study actually do?

Participants followed the protocols for 8 weeks, but like most exercise studies:

❗️ Frequency was controlled but not the main variable studied
πŸ‘‰ Typically performed ~2–3 sessions per week

---

## πŸ“Š Evidence-based recommendation

Based on:

* This study
* Broader HIIT literature
* Recovery physiology

πŸ‘‰ A smart frequency is:

### βœ… 2–3 HIIT sessions per week

Why?

βœ”οΈ Allows enough stimulus for adaptation
βœ”οΈ Gives time for recovery (central + muscular)
βœ”οΈ Helps maintain performance quality in each session

---

## βš–οΈ Can you do more?

Yesβ€”but here’s the catch:

πŸ”Ί 3–4+ sessions/week

* Possible for trained individuals
* BUT increases fatigue risk 😡
* May reduce session quality

πŸ”» 1–2 sessions/week

* Still effective for beginners
* Great for combining with strength training πŸ’ͺ

---

## πŸ”₯ How to choose based on your goal

πŸ’ͺ Hypertrophy + Strength focus
β†’ 1–2 HIIT sessions/week (support work)

❀️ Cardio / VOβ‚‚max focus
β†’ 2–3 HIIT sessions/week

⏳ General fitness / lifestyle
β†’ 2 sessions/week is more than enough

---

## πŸš€ Key takeaway

πŸ‘‰ HIIT is powerful… but also demanding

πŸ“ˆ More is NOT always better
πŸ“‰ Better is: high-quality sessions + proper recovery

---

Appreciate the questionβ€”this is exactly the kind of discussion that makes this community stronger πŸ’š

Keep them coming πŸ”¬πŸ’ͺ
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πŸ“š THE SET & REP JOURNAL – WEEKLY STUDY BREAKDOWN
No4.
πŸ”₯ More sets? More days? What actually builds more muscle & strength?

This week we break down a large meta-analysis (67 studies, 2000+ participants) exploring how:

πŸ‹οΈ Weekly training volume (sets)
πŸ“… Weekly training frequency (sessions)

affect muscle hypertrophy and strength gains

---

## πŸ”¬ THE BIG QUESTION

πŸ‘‰ Is more always better?
πŸ‘‰ And does frequency matter as much as volume?

---

## πŸ“Š KEY FINDINGS

### πŸ’ͺ 1. Volume = KING for muscle growth

πŸ“ˆ More weekly sets β†’ more hypertrophy
βœ… 100% probability of a positive relationship

BUT…

⚠️ Diminishing returns exist

* Gains slow down after ~20–30 sets per muscle/week
* More is not always better… just more fatigue 😡

---

### πŸ‹οΈ 2. Volume also increases strength

πŸ“ˆ More volume β†’ more strength

BUT…

⚠️ Even bigger diminishing returns

* Strength plateaus earlier than hypertrophy
* Excess volume = lower efficiency

---

### πŸ“… 3. Frequency = Different story

πŸ’ͺ Hypertrophy
❌ No clear benefit of higher frequency
πŸ‘‰ You can grow with 1–3 sessions/week per muscle

πŸ‹οΈ Strength
βœ… Higher frequency helps
πŸ‘‰ More practice = better neural adaptations

BUT…

⚠️ Still diminishing returns

---

## 🧠 WHY THIS HAPPENS

β€’ Volume β†’ drives mechanical tension + stimulus accumulation
β€’ Frequency β†’ improves skill, coordination, neural efficiency

πŸ‘‰ That’s why:

* Hypertrophy depends more on total work
* Strength depends on practice + exposure

---

## βš–οΈ PRACTICAL APPLICATION

### πŸ’ͺ For Hypertrophy

βœ”οΈ 10–20 sets / muscle / week
βœ”οΈ Up to ~20–30 if advanced
βœ”οΈ Frequency: flexible (1–3x/week)

πŸ‘‰ Focus on total weekly volume

---

### πŸ‹οΈ For Strength

βœ”οΈ 6–15 sets / muscle / week
βœ”οΈ Frequency: 2–5x/week
βœ”οΈ Spread volume across sessions

πŸ‘‰ Focus on both volume AND frequency

---

## 🚨 KEY TAKEAWAY

πŸ‘‰ Volume and frequency are NOT equal

πŸ’ͺ Hypertrophy β†’ Volume is the driver
πŸ‹οΈ Strength β†’ Volume + Frequency both matter

---

## πŸš€ BOTTOM LINE

πŸ“ˆ Do enough volume to grow
πŸ“… Use frequency to manage fatigue and improve performance

πŸ‘‰ Smart programming > just doing more

---

Follow The Set & Rep Journal for weekly science-based insights πŸ”¬πŸ’ͺ

#Hypertrophy #StrengthTraining #ExerciseScience #TrainingVolume #WorkoutScience #EvidenceBasedFitness #GymScience
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πŸ“š THE SET & REP JOURNAL – WEEKLY STUDY BREAKDOWN
No5

πŸ”₯ Is there REALLY a limit to how much protein your body can use after training?

For years, the fitness industry repeated the same idea:

❌ β€œYou can only absorb/use 20–30 g of protein per meal”
❌ β€œAnything above that is wasted”

This new study completely challenges that belief πŸ”¬

---

## πŸ§ͺ THE STUDY

Researchers compared:

πŸ₯€ 25 g protein vs 100 g protein
after resistance exercise

Using an advanced quadruple isotope tracer methodology to directly measure:

βœ… Muscle protein synthesis
βœ… Whole-body protein balance
βœ… Amino acid incorporation into muscle
βœ… Amino acid oxidation
βœ… Protein breakdown

---

## πŸ“ˆ WHAT THEY FOUND

### πŸ’ͺ 1. MORE PROTEIN = GREATER MUSCLE BUILDING RESPONSE

The 100 g dose produced:

⬆️ Greater amino acid availability
⬆️ Greater muscle protein synthesis
⬆️ Greater whole-body anabolic response

…and the effect lasted for:

⏳ MORE THAN 12 HOURS

---

### 🚨 2. THERE WAS NO β€œUPPER LIMIT” OBSERVED

The anabolic response:

πŸ“ˆ continued increasing with higher protein intake

Meaning:

πŸ‘‰ The body kept USING the amino acids
πŸ‘‰ They were NOT simply β€œwasted”

---

### πŸ”₯ 3. EXTRA PROTEIN WAS NOT SIGNIFICANTLY OXIDIZED

One of the most important findings:

❌ Large protein doses did NOT meaningfully increase amino acid oxidation

Translation:

πŸ‘‰ The body was still utilizing the protein for anabolic processes

---

## 🧠 WHY THIS CHANGES EVERYTHING

For years:

* 20–30 g protein was considered the β€œmax effective dose”

This study suggests reality is more nuanced:

βœ… Larger protein doses can sustain muscle protein synthesis for longer
βœ… The anabolic response is dose-dependent
βœ… Recovery nutrition may have been underestimated

---

## βš–οΈ IMPORTANT SCIENTIFIC NUANCE

🚨 This study does NOT mean:

❌ β€œUnlimited protein is always better”
❌ β€œEveryone should consume 100 g shakes”

BUT…

βœ… It DOES challenge the idea that protein above ~30 g is automatically wasted

---

## πŸ’‘ PRACTICAL APPLICATION

πŸ‹οΈβ€β™‚οΈ For lifters training hard:

* Larger protein meals may support recovery better than previously thought
* Especially during:
βœ”οΈ High training volumes
βœ”οΈ Long recovery windows
βœ”οΈ Caloric deficits
βœ”οΈ Muscle-building phases

---

## 🍽 SO HOW MUCH PROTEIN SHOULD YOU EAT?

πŸ“Œ The answer probably depends on:

* Body size
* Training load
* Meal timing
* Daily protein intake
* Recovery demands

πŸ‘‰ But the β€œ30 g ceiling” is likely too simplistic.

---

## πŸš€ BOTTOM LINE

πŸ’ͺ Your body can utilize much more protein post-exercise than we once believed.

πŸ“ˆ Bigger protein doses may:
βœ… Extend the anabolic response
βœ… Improve net protein balance
βœ… Support recovery for many hours after training

---

πŸ”¬ Science evolves.
And so should our nutrition recommendations.

Follow The Set & Rep Journal for weekly evidence-based breakdowns πŸ’ͺπŸ“š

#Protein #MuscleGrowth #Hypertrophy #SportsNutrition #ExerciseScience #EvidenceBasedFitness #ResistanceTraining
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πŸ“š THE SET & REP JOURNAL – WEEKLY STUDY BREAKDOWN
No6.
πŸ”₯ What is the BEST warm-up strategy for performance?

Most people warm up randomly:
❌ a few static stretches
❌ some treadmill walking
❌ maybe one light set…

But science shows that the structure of your warm-up can directly affect:

πŸ‹οΈ Strength
⚑️ Power
πŸƒ Speed & agility
🧠 Neural readiness
πŸ›‘ Injury risk

This week we break down a systematic review on warm-up strategies and what actually works πŸ”¬

---

# 🧠 THE MAIN FINDING

βœ… Dynamic and sport-specific warm-ups consistently improved performance

Especially for:
⚑️ Explosive power
πŸƒ Sprinting
🀸 Agility
πŸ‹οΈ Strength production

---

# 🚨 STATIC VS DYNAMIC STRETCHING

## βœ… Dynamic stretching:

βœ”οΈ Improves performance
βœ”οΈ Increases muscle temperature
βœ”οΈ Enhances neural activation
βœ”οΈ Improves movement readiness

Examples:

* Leg swings
* Lunges
* Arm circles
* Skips
* Dynamic mobility drills

---

## ⚠️ Static stretching (BEFORE performance):

❌ May reduce:

* explosive strength
* sprint performance
* power output

Why?
πŸ‘‰ Long passive holds can temporarily reduce neural drive and stiffness needed for explosive actions.

BUT…

βœ… Static stretching is STILL useful:

* AFTER training
* Separate mobility sessions
* Improving flexibility long term

---

# ⏱️ HOW LONG SHOULD A WARM-UP BE?

πŸ“ˆ Sweet spot:

## πŸ‘‰ 10–20 minutes

Why?

βœ”οΈ Enough time to increase:

* body temperature
* blood flow
* muscle activation
* readiness

❌ Too short (<10 min):
β†’ insufficient preparation

❌ Too long (>20 min):
β†’ unnecessary fatigue

---

# πŸ”₯ WHAT SHOULD A GOOD WARM-UP INCLUDE?

## βœ… THE IDEAL STRUCTURE

### 1️⃣ General Preparation (2–5 min)

πŸƒ Light cardio

* bike
* jog
* row
* jump rope

Goal:
⬆️ Increase body temperature

---

### 2️⃣ Mobility & Activation (3–5 min)

🧠 Activate key muscles:

* glutes
* core
* scapula
* hips

Examples:
βœ”οΈ Band walks
βœ”οΈ Dynamic mobility
βœ”οΈ Activation drills

---

### 3️⃣ Movement Preparation (5–8 min)

πŸ‹οΈ Sport-specific movement patterns

Examples:
βœ”οΈ Technique drills
βœ”οΈ Dynamic movements
βœ”οΈ Practice sets

---

### 4️⃣ Performance Priming (3–5 min)

⚑️ Prepare the nervous system

Examples:
βœ”οΈ Accelerations
βœ”οΈ Jumps
βœ”οΈ Plyometrics
βœ”οΈ Fast explosive reps

---

# πŸ“Š WHAT ABOUT INTENSITY?

Warm-ups should be:
πŸ“ˆ progressive

General guideline:

* Start light
* Gradually increase intensity
* Finish feeling:
βœ… primed
❌ not fatigued

---

# πŸš€ KEY TAKEAWAYS

βœ… Dynamic warm-ups > static warm-ups for performance
βœ… Sport-specific preparation matters most
βœ… 10–20 min is the optimal duration
βœ… Warm-up should progress from general β†’ specific
βœ… Static stretching is better AFTER training

---

# 🧠 BOTTOM LINE

A warm-up is NOT just β€œgetting sweaty.”

πŸ‘‰ It’s a performance tool.

The best warm-ups:
βœ”οΈ increase readiness
βœ”οΈ improve force production
βœ”οΈ enhance movement quality
βœ”οΈ reduce injury risk

---

πŸ”₯ Warm up smarter. Perform better.

Follow The Set & Rep Journal for weekly evidence-based exercise science content πŸ”¬πŸ’ͺ

#WarmUp #SportsScience #StrengthTraining #AthleticPerformance #ExerciseScience #Mobility #EvidenceBasedFitness
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