RPE vs Percentage-Based Training

Two systems dominate strength training programming: percentage-based (use 80% of your 1RM) and RPE-based (rate how hard the set felt on a 1-10 scale). Both work, but they suit different lifters.

Percentage-Based Training

How it works: Calculate loads based on your tested or estimated one-rep max (1RM). Example: Squat 100kg 1RM → Week 1 do 80kg x 5 x 3 (80%).

Pros:

• Simple to follow - just plug numbers in
• No subjective assessment needed
• Great for beginners who do not know what "hard" feels like
• Easy to programme in advance

Cons:

• Your 1RM changes daily based on sleep, stress, nutrition
• Does not account for good or bad days
• Requires regular 1RM testing to stay accurate
• Can lead to training too hard or too easy

RPE-Based Training

How it works: Rate each set on a 1-10 scale where 10 = absolute failure. RPE 8 means you could have done 2 more reps. Example: Squat RPE 8 x 5 x 3 (whatever weight that is today).

Pros:

• Automatically adjusts for daily readiness
• No need for 1RM testing
• Accounts for sleep, stress, and recovery
• Develops self-awareness and training intuition

Cons:

• Requires honesty and experience to rate accurately
• Beginners often misjudge RPE
• Hard to programme far in advance
• Can lead to sandbagging if you are not disciplined

Which System to Use?

Beginners (0-2 years): Start with percentage-based. You need to learn what heavy feels like before you can rate it.

Intermediate (2-5 years): Transition to RPE or use a hybrid. You know your body well enough to autoregulate.

Advanced (5+ years): RPE or hybrid works best. Daily variation matters more as you approach your genetic ceiling.

The Hybrid Approach

Many coaches use both: prescribe a target weight based on percentages, then adjust ±5% based on RPE. Example: "Work up to 85kg for sets of 5. If RPE is above 9, reduce weight. If RPE is below 7, add weight."

This gives structure (percentages) with flexibility (RPE adjustment). For most Malaysian lifters, this balanced approach works best.