Reading a Fitness Program
Sets, reps, rest, RPE, tempo — how to decode the notation used in training programs.
TL;DR
- 01Training programs use a standardized notation where sets × reps × load describes each exercise prescription.
- 02RPE (Rate of Perceived Exertion) and RIR (Reps in Reserve) tell you how hard each set should feel.
- 03Tempo notation (e.g., 3-1-1-0) describes the speed of each phase of a movement.
Tips
- 01"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.
- 02Beginners 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.
- 03When 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.
Warnings
- 01An RPE 8 prescription means: stop the set when 2 more reps would be your absolute limit.
- 02Tempo notation (e.g., 3-1-1-0) describes the speed of each phase of a movement — misapplying this is a common source of errors.
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.
| Notation | Meaning | Example |
|---|---|---|
| 3×10 | 3 sets of 10 reps | Squat 3×10 |
| 3×10 @ 60 kg | 3 sets of 10 reps at 60 kg | Bench 3×10 @ 60 kg |
| 3×8–12 | 3 sets, 8 to 12 reps (pick weight accordingly) | Curl 3×8–12 |
| 5×5 | 5 sets of 5 reps (classic strength format) | Deadlift 5×5 |
| AMRAP | As Many Reps As Possible in a set or time | Push-ups AMRAP |
| 1RM | 1-rep maximum (heaviest single rep you can do) | 80% 1RM |
| %RM | Percentage of your 1-rep max | 70% 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.
| Format | Meaning | Common Application |
|---|---|---|
| 3×5 | 3 sets, 5 reps each | Strength programs (StrongLifts, Starting Strength) |
| 4×8 | 4 sets, 8 reps each | Hypertrophy programs |
| 5×3 | 5 sets, 3 reps each | Strength / powerlifting |
| 3×8–12 | 3 sets, 8–12 reps | Bodybuilding / general fitness |
| 4×6, 3×8, 2×12 | Multiple sets with different reps (wave loading) | Advanced periodization |
| 1×20 | 1 set of 20 reps | High-rep protocol (breathing squats) |
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.
| RPE | Description | RIR (Reps in Reserve) | Appropriate For |
|---|---|---|---|
| 6 | Moderate effort | 4–5 RIR | Warm-up, technique practice |
| 7 | Challenging, somewhat hard | 3 RIR | Beginner working sets |
| 8 | Hard | 2 RIR | Intermediate working sets |
| 9 | Very hard, could do 1 more | 1 RIR | Advanced / intensity sets |
| 9.5 | Could maybe do 1 more | 0–1 RIR | Near-maximal effort |
| 10 | Absolute maximum effort | 0 RIR (failure) | Testing / max effort days |
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 Code | Phase | For Squat | For Bench Press |
|---|---|---|---|
| 1st digit | Eccentric (lowering) | Lowering into squat | Bar lowering to chest |
| 2nd digit | Pause at bottom | Pause in squat hole | Pause on chest |
| 3rd digit | Concentric (lifting) | Rising back up | Pressing bar up |
| 4th digit | Pause at top | Pause at standing | Pause 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 Line | What It Means |
|---|---|
| A1. Back Squat — 4×6 @ 80% 1RM, tempo 3-1-1-0, rest 3 min | 4 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 min | 3 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 sec | 3 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 sec | 4 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 sec | 3 sets of 20 reps with consistent load, on the last set do as many reps as possible, rest 45 seconds |
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.
FAQ
This means 4 sets of 8 repetitions using a weight equal to 75% of your one-rep maximum for that exercise. Calculate your 1RM first, then multiply by 0.75 to find the working weight.
RPE (Rate of Perceived Exertion) rates effort on a scale of 1–10, while RIR (Reps in Reserve) counts how many more reps you could have done before failure. An RPE of 9 equals 1 RIR — they are inverse expressions of the same concept.
Each number represents a phase of the lift in seconds: eccentric (lowering), pause at the bottom, concentric (lifting), and pause at the top. A 4-0-1-0 squat means lower for 4 seconds, no pause, lift in 1 second, no pause at the top.
Rep ranges allow you to auto-regulate based on daily readiness — if you feel strong, aim for the top of the range; if fatigued, the bottom is still productive. This flexibility produces more consistent progress than rigid rep targets.
'A1' is the exercise order in a superset or circuit, '3x10' means 3 sets of 10 reps, 'RPE 7' means stop with 3 reps still in the tank, and '2010' is the tempo — 2 seconds down, no pause, 1 second up, no pause at top.