Health · Exercise

Reading a Fitness Program

Sets, reps, rest, RPE, tempo — how to decode the notation used in training programs.

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TL;DR
  1. 01Training programs use a standardized notation where sets × reps × load describes each exercise prescription.
  2. 02RPE (Rate of Perceived Exertion) and RIR (Reps in Reserve) tell you how hard each set should feel.
  3. 03Tempo notation (e.g., 3-1-1-0) describes the speed of each phase of a movement.

Program Notation Basics

Every written training program uses a shared notation system that tells you what to do, how much, how hard, and how fast. Understanding this notation lets you follow any program — whether from a coach, an app, or a fitness book — without confusion.

The core prescription is always: Exercise Name — Sets × Reps @ Load. Additional modifiers (RPE, tempo, rest) provide further detail. Some programs include all of these; others include only the basics.

NotationMeaningExample
3×103 sets of 10 repsSquat 3×10
3×10 @ 60 kg3 sets of 10 reps at 60 kgBench 3×10 @ 60 kg
3×8–123 sets, 8 to 12 reps (pick weight accordingly)Curl 3×8–12
5×55 sets of 5 reps (classic strength format)Deadlift 5×5
AMRAPAs Many Reps As Possible in a set or timePush-ups AMRAP
1RM1-rep maximum (heaviest single rep you can do)80% 1RM
%RMPercentage of your 1-rep max70% 1RM = 70% of heaviest possible

Sets and Reps Format

The sets × reps format is universal across all training programs. The first number is always sets; the second is reps. When followed by a load specification, it tells you everything needed to execute the set.

Some programs prescribe rep ranges (e.g., 3×8–12) rather than fixed reps. This means select a weight where you can complete at least 8 reps but no more than 12 with good form. When you can complete the top of the range (12 reps) comfortably, increase the weight.

FormatMeaningCommon Application
3×53 sets, 5 reps eachStrength programs (StrongLifts, Starting Strength)
4×84 sets, 8 reps eachHypertrophy programs
5×35 sets, 3 reps eachStrength / powerlifting
3×8–123 sets, 8–12 repsBodybuilding / general fitness
4×6, 3×8, 2×12Multiple sets with different reps (wave loading)Advanced periodization
1×201 set of 20 repsHigh-rep protocol (breathing squats)

Tip: "Top sets" and "back-off sets" appear in many programs. A top set is your heaviest working set; back-off sets are performed at a lower weight (usually 85–90% of top set) for more reps to add volume.

RPE and RIR Explained

RPE (Rate of Perceived Exertion) is a 1–10 scale measuring how hard a set feels. RIR (Reps in Reserve) is the number of additional reps you could have done before reaching muscular failure. They are inverse measures of the same thing.

Modern programs often use RPE or RIR instead of a fixed percentage of 1RM, because RPE accounts for daily fluctuations in readiness. An RPE 8 prescription means: stop the set when 2 more reps would be your absolute limit.

RPEDescriptionRIR (Reps in Reserve)Appropriate For
6Moderate effort4–5 RIRWarm-up, technique practice
7Challenging, somewhat hard3 RIRBeginner working sets
8Hard2 RIRIntermediate working sets
9Very hard, could do 1 more1 RIRAdvanced / intensity sets
9.5Could maybe do 1 more0–1 RIRNear-maximal effort
10Absolute maximum effort0 RIR (failure)Testing / max effort days

Tip: Beginners often underestimate their RPE — what feels like RPE 8 is often only RPE 6. Over 4–6 weeks of consistent training, your ability to self-assess RPE accuracy dramatically improves.

Tempo Notation

Tempo refers to the speed of movement during each phase of a rep. It's written as a four-digit code: eccentric – pause at bottom – concentric – pause at top (seconds). For example, a squat at 3-1-1-0 means: 3 seconds lowering, 1 second pause at bottom, 1 second rising, 0 pause at top.

Position in CodePhaseFor SquatFor Bench Press
1st digitEccentric (lowering)Lowering into squatBar lowering to chest
2nd digitPause at bottomPause in squat holePause on chest
3rd digitConcentric (lifting)Rising back upPressing bar up
4th digitPause at topPause at standingPause with arms extended

Common tempo prescriptions:

  • X-0-X-0 — explosive lift, no pauses (used in powerlifting and Olympic lifting)
  • 3-0-1-0 — controlled eccentric, standard concentric (common hypertrophy work)
  • 4-2-1-0 — slow eccentric with bottom pause (advanced hypertrophy / muscle damage focus)
  • 1-0-1-0 — standard tempo, no specific emphasis (most general fitness programs)

Sample Program Block Decoded

Here is a real-world program excerpt decoded line by line:

Program LineWhat It Means
A1. Back Squat — 4×6 @ 80% 1RM, tempo 3-1-1-0, rest 3 min4 sets of 6 reps at 80% of your max squat, take 3 seconds to lower, pause 1 second at bottom, rise in 1 second, rest 3 minutes between sets
B1. Romanian Deadlift — 3×10 RPE 8, rest 2 min3 sets of 10 reps, stop each set when you could do only 2 more, rest 2 minutes
C1. Leg Press — 3×12–15 @ 7 RPE, rest 90 sec3 sets, pick a weight that lets you do 12–15 reps at moderate effort, rest 90 seconds
D1. Leg Curl — 4×10 @ 3 RIR, tempo 2-0-1-0, rest 60 sec4 sets of 10 reps stopping 3 reps short of failure, 2-second eccentric, rest 60 seconds
E1. Calf Raise — 3×20 AMRAP last set, rest 45 sec3 sets of 20 reps with consistent load, on the last set do as many reps as possible, rest 45 seconds

Tip: When a program uses "supersets" (A1/A2), perform exercise A1, immediately perform A2 with no rest, then rest the stated amount before repeating. This is common in time-efficient hypertrophy programs.

If a program doesn't specify rest periods, use these defaults: heavy compound lifts — 2–3 minutes; moderate compound lifts — 90 seconds; isolation exercises — 60 seconds.

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