We return this week with a jam packed agenda, lets understand a bit more about some core concepts and also how to stay consistent - by design!
What’s In Store
What’s In Store:
MOTIVATE: How resilience shows up in elite training systems
THINK: Why “muscle confusion” is a terrible cue
LEARN: What the science says about training frequency and hypertrophy
PRACTICE: How to build a periodized hypertrophy block that actually works
CURATE: 4 great pieces this week, you know the drill, scroll down and peruse
MOTIVATE
(Straight up motivation to fuel your workouts)
Resilience is planned, not reactive
One of the most misunderstood traits in fitness is resilience.
We tend to think of it as a personality trait, something you’re either born with or build through hardship. But in elite training circles, especially in systems like periodization, resilience is something engineered.
From the work of Tudor Bompa and the Eastern bloc coaches to more modern adaptations in athlete development, periodization isn't just about progressing loads, it's about managing stress for long-term adaptability. And that’s what resilience is: the ability to respond, adapt, and come back stronger.
In fact, in Periodization: Theory and Methodology of Training, Bompa argues that the strategic alternation of volume, intensity, and recovery is what prevents burnout, overtraining, and stagnation. In other words, resilience isn’t a by-product of suffering. It’s a deliberate outcome of intelligent planning (that’s actually major, read that again and let that concept sink in).
But let’s go deeper, because this isn’t just science. It’s the very heart of why most people never build true consistency.
The gym asks a lot of us, energy, time, recovery, mental effort. And we show up, over and over, expecting to feel great every session. But what happens when life throws a curveball? A bad night of sleep. A rough week at work. A draining life event. You hit the wall... and if your plan doesn’t see it coming, you crumble.
This is where real motivation kicks in, not the chest-thumping, pre-workout-fueled hype (go hard or go home attitide) but the kind of motivation built on durability.
By building a program that accounts for your real-world capacity, not your perfect-world ambition, you keep yourself in the game. Periodization isn’t soft, it’s strategic. It says, “Let’s plan to peak, and let’s plan to pull back, so you can keep showing up without breaking down.”
If you only train when conditions are perfect, you’ll train for maybe 20% of your life. If you plan for the dips, the valleys, the days you’re not firing on all cylinders, you build a pattern. And patterns beat willpower every single time.
So when we say resilience is built into the system, what we really mean is:
Real progress doesn’t come from pushing harder. It comes from staying longer.
That’s why your programs need phases. That’s why you need lighter weeks. That’s why you should plan to rest, not just rest when you crash. That’s why motivation is linked to how you plan.
Key takeaways:
Don’t wait for life to force recovery, build it in.
Don’t test your grit daily, build a system that trains it over months.
Real resilience? It’s the outcome of planning smarter, not grinding harder.
Plan programmes with phases that already pre-empt your life, your capacity and your goals (PRACTICE will have a section looking a simple way to understand periodization)
THINK
(Your dose of critical thinking to bullet proof the mind)
“Confuse the muscle”? You’re confusing yourself
Every now and then a topic comes along that fits squarely in this section of the newsletter that perfectly encapsulates why critical thinking is so important in this fitness journey - without it we are fish aimlessly swimming in a sea of knowledge and concepts, “muscle confusion” is one of our favourites.
This one might ruffle some feathers, but the old-school advice to “confuse the muscle” is one of the most misapplied ideas in training. You’ve probably heard it: never do the same workout twice, always keep your body guessing, mix it up every session.
But here’s the catch: your muscles don’t get confused, they get efficient. And that efficiency is exactly what drives progress.
Jim Stoppani popularized this concept as part of his “Shortcut to Size” and “Six Weeks to Shred” programs. The original idea had some merit, it was about variation to avoid accommodation. But many lifters took it to mean “randomize everything.” That’s a mistake.
Physiologically, hypertrophy and strength gains come from progressive overload, doing more or doing it better. That means repetition, progression, and yes, sometimes boredom.
Here’s why “confusion” doesn’t work:
You lose skill acquisition by never repeating a movement
You miss out on volume progression by changing stimuli too fast
Your recovery and adaptation signals get diluted
There is a place for variation, but it should be structured. Swap exercises every 4–6 weeks, not every session. And make sure you’re still progressing the fundamentals.
If you want to confuse something, confuse your excuses. Your muscles need clarity.
LEARN
(Top tier research broken down to better understand fitness and health)
Frequency and its relationship to hypertrophy outcomes
Core research question?
Does training frequency (e.g. 1x vs 3x per week per muscle group) significantly impact hypertrophy and strength outcomes?
What was the research methodology?
Meta-analyses by Schoenfeld, Grgic, and colleagues (2016–2019) compiled dozens of studies examining training frequency as a variable, while keeping volume matched. Populations ranged from trained to untrained, with various protocols from body part splits to full-body routines.
What are the key findings?
When volume is equated, higher frequency has minimal extra benefit
When frequency enables more volume, hypertrophy is greater
Beginner to intermediate trainees may benefit more from 2–3x/week exposure
Strength gains may be slightly more responsive to frequency due to skill retention
Practical takeaways:
You don’t have to train every muscle group 3x a week - but it might help if you struggle with volume or soreness
Choose a split that supports recovery, execution quality, and enjoyment
Higher frequency = more exposure = better technique and potentially more total work
Study limitations?
Few long-term studies beyond 12 weeks, and many use untrained populations. More data is needed on advanced lifters with matched variables.
My take on this research:
This helps resolve the full-body vs. bro-split debate. The truth? Frequency is a volume and skill tool, not a magic bullet. We’ve known for some time that frequency is a tool in our toolkit but so is intensity, progressive overload, deloads etc., so use it as such. If training 3x/week means you hit your volume target with better form and less fatigue, do it. But if you’re already progressing on 2x/week? No need to fix what isn’t broken.
Link to the paper below:
PRACTICE
(Weekly practical workout, diet and health protocols)
Building a periodized hypertrophy block, a template for real results
We spoke about it in the Motivate section, try and draw the link here, we go super practical here for good reason, but notice how powerful this is both for “life design” and the science behind recovery and adaptation (another concept spoken about in prior newsletters).
Why this matters:
Most lifters train with one speed: hard. But progress isn’t just about intensity, it’s about structure. Periodization brings method to the madness, allowing you to train with purpose, recover on time, and avoid spinning your wheels.
Think of periodization like meal planning for your training. It’s how you hit your macros (volume, intensity, fatigue management) over time, not just in a single session.
Another example of what periodization could look like
What is it?
Periodized hypertrophy planning is the strategic sequencing of training variables across 6–12+ weeks to drive muscle growth. This includes:
Volume manipulation (sets × reps)
Intensity cycling (% of 1RM)
Exercise selection and stimulus variation
Built-in deloads
Template: 8-week hypertrophy block
Below is a sample (and trust me there are 100’s of periodization templates and methods, this is very basic, yet powerful but at the same time captures the core principles needed)
Weeks | Focus | Sets/Reps | Notes |
|---|---|---|---|
1–2 | Volume acclimation | 3–4 sets × 12–15 reps | Submaximal RPE, prep connective tissue and movement pattern |
3–4 | Progressive overload | 4–5 sets × 10–12 reps | Slightly heavier, push 1–2 reps from failure |
5–6 | Peak intensity | 4–5 sets × 6–10 reps | Near failure, include intensifiers like drop sets |
7 | Overreach/density | 3–4 sets × 12–15 reps | High volume, short rest, force adaptation |
8 | Deload | 2–3 sets × 12–15 reps | Reduced load, active recovery, restore fatigue markers |
Key rules:
Keep 2–3 primary compound lifts consistent per block
Swap out accessory moves every 4–6 weeks for novelty
Track RPE/RIR and adjust based on recovery
What this gives you:
Strategic stimulus variation
Planned fatigue management
Measurable progress across weeks—not just workouts
No more guesswork. Just building, systematically.
CURATE
The roundup (a collection of some of the latest and most useful content from around the internet):
This week we have 4 really great pieces, check it out:
Images are clickable:
Dr. Mike Israetel on Heat vs Cold Post-Workout
Heat may actively enhance recovery and growth rather than hinder it. It improves muscle perfusion, supports protein stabilization, and may boost satellite cell activation. Cold exposure, in contrast, flips several of those benefits in reverse.
Read here
On Running Launches World-First LightSpray™ Factory
Swiss brand On has opened a groundbreaking shoe production facility in Zurich using LightSpray™ technology. This marks a leap in automation and a return of manufacturing to Europe.
Read here
Dr. Pak on Artificial Sweeteners and Health
Despite the internet's fear-mongering, artificial sweeteners are safe. A systematic review confirms they don’t negatively impact metabolic health. So yes, the diet soda is fine.
Read here
Muscle & Fitness on the Anabolic Window Myth
Post-workout protein timing isn’t as urgent as once believed. The anabolic window is more forgiving than 30-minute panic sprints to the shaker. Focus on hitting your total daily protein instead.
Read here
To everyone that keeps reading and keeps helping to grow this newsletter I truly appreciate you. If you know of anyone in your immediate circle that may enjoy this newsletter please just forward this newsletter to them and tell them to subscribe at the link below:
Wishing you all the best in your fitness journey
The FitnessHacker
