If you’re training for a marathon, HYROX, CrossFit, team sport, or simply trying to perform at your best while lifting weights, how you organise your training week is just as important as what exercises you do.
One of the biggest mistakes we see is people planning their training around muscle groups alone.
Monday: Chest. Tuesday: Legs. Wednesday: Back.
While this approach can work for bodybuilding, it often falls short for athletes and anyone completing multiple training sessions each week.
Instead of asking “What muscles am I training today?”, you should be asking:
“How much fatigue will today’s session create?”
Think Beyond Muscle Groups
Performance isn’t just limited by your muscles – it is limited by how well your body and nervous system can recover.
Every hard training session creates fatigue, not just within your muscles but also within your Central Nervous System (CNS). Your CNS is responsible for producing force, coordinating movement and maintaining high-quality performance.
If every day places a high demand on your nervous system, recovery becomes compromised, performance starts to decline and your injury risk increases.
This is why performance coaches often organise training into High Days and Low Days.
What Is a High Training Day?
A High Day is any session that places a significant amount of stress on your body and nervous system.
Examples include:
- Heavy strength training (RPE 8+ with compound lifts)
- Threshold running
- VO₂ Max intervals
- Hill repeats
- Hard tempo runs
- High-intensity HYROX sessions
- Team sport training involving repeated sprint efforts
- Field-based conditioning sessions
These sessions are designed to push performance forward, but they also require quality recovery afterwards.
What Is a Low Training Day?
A Low Day allows your body to recover while still building fitness or reinforcing movement quality.
Examples include:
- Easy aerobic runs
- Zone 2 cardio
- Upper body hypertrophy or pump sessions
- Mobility work
- Recovery conditioning
- Technical or tactical skill sessions
- Light accessory strength work
Low days are not “wasted” training days – they are what allow you to perform at your best during your next high-intensity session.
Where Do Long Runs Fit?
Long runs usually sit somewhere between moderate and high.
The classification depends on factors such as:
- Total duration
- Running pace
- Elevation
- Training age
- Overall weekly training volume
For someone training for a marathon, a 30 km long run will generally be considered a High Day due to the significant recovery demand.
The Goal: Balance Fatigue Throughout the Week
Rather than stacking multiple demanding sessions together, try to alternate between high and low fatigue days wherever possible.
A well-balanced training week might look like:
- Monday: High – Heavy Lower Body Strength
- Tuesday: Low – Easy Run + Mobility
- Wednesday: High – Threshold Run
- Thursday: Low – Upper Body Strength
- Friday: High – HYROX Conditioning
- Saturday: Low – Zone 2 Cardio
- Sunday: Rest or Recovery
This High–Low–High–Low approach allows your body to recover between demanding sessions while maintaining consistent training quality.
Avoid Stacking Too Many High Days
Occasionally, back-to-back High Days are unavoidable – especially during competition preparation or busy schedules.
However, as a general rule:
- Aim to alternate High and Low Days whenever possible.
- Avoid more than two consecutive High Days.
Three or more demanding sessions in a row significantly increase accumulated fatigue, which can lead to:
- Reduced performance
- Poor recovery
- Increased soreness
- Higher injury risk
- Burnout
- Plateaued progress
Remember, more training isn’t always better. Better-managed training almost always wins.
Take a Look at Your Own Training Week
A simple exercise is to write out every session you complete across the week and label each one:
High or Low
You’ll quickly identify whether your training is balanced or whether you’re unintentionally stacking multiple hard sessions together.
Small adjustments – such as moving an easy run, shifting a strength session, or swapping a conditioning workout – can make a significant difference to how you recover and perform.
Train Smarter at The Hybrid Headquarters
At The Hybrid Headquarters, we don’t just write training programs – we build them around recovery, performance and long-term progression.
Whether your goal is to run your first half marathon, compete in HYROX, improve your strength, or simply become fitter without burning yourself out, your weekly training should be structured to maximise adaptation – not just accumulate fatigue.
If you’re unsure whether your current program is balanced, speak with one of our coaches. We’ll help you structure your week so every hard session counts and every recovery day has a purpose.
