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5/3/1 Eternal
IntermediateFree

5/3/1 Eternal

My take on 531, with added focus on OHP and accessories

Aleksander Zalar
Aleksander Zalar· Sep 2025
iOS & Android

Overview

Length
3 weeks
Days / week
4 days
Level
Intermediate
Goal
Muscle, Strength
Equipment
Full Gym
Session length
90 min
Input 90% of your 1rm, increase after completing for max 5kg on legs and 2.5 on upper body.

Who it's for

Intermediate athletes ready for a structured program
Athletes focused on gaining both size and strength
Athletes who can train 4 days per week
Athletes with access to a full gym (barbells, dumbbells, cables, and machines)

Muscle engagement

Front
Back
Quadriceps
13.7%
Triceps
12.3%
Front Delts
11%
Chest
10.3%
Hamstrings
9.2%
Middle Delts
8.6%
Glutes
7.8%
Upper Back
5.7%
Lats
5.2%
Forearms
3.7%
Abs
3.6%
Lower Back
3%
Rear Delts
2.6%
Biceps
1.8%
Adductors
1.5%
Week 1 Workouts
#ExerciseSetsRepsLoad
1Squat (Barbell)15 reps65%
15 reps75%
15 reps85%
2Squat (Barbell)1AMRAP85%
3Deadlift (Paused)25–10 reps@9
Superset
4ALeg Extension25–10 reps@10
4BLeg Curl25–10 reps@10
5Pec Deck (Machine)26–12 reps@10
6Wrist Curls26–10 reps@10
7Overhead Press (Barbell)15 reps65%
15 reps75%
15 reps85%
8Overhead Press (Barbell)1AMRAP85%
#ExerciseSetsRepsLoad
1Overhead Press (Barbell)15 reps65%
15 reps75%
15 reps85%
2Overhead Press (Barbell)1AMRAP85%
3Incline Bench Press (Barbell)26–10 reps@10
4Pull-Up (Weighted)26–10 reps@10
5Lateral Raise (Dumbbell)26–12 reps@10
Superset
6ASingle Arm Tricep Extension (Cable)26–10 reps@10
6BHammer Curl26–12 reps@10
7Chest Supported Row (Machine)26–10 reps@10
#ExerciseSetsRepsLoad
1Deadlift (Barbell)15 reps65%
15 reps75%
15 reps85%
2Deadlift (Barbell)1AMRAP85%
3Front Squat (Barbell)25–10 reps@9
Superset
4ALeg Extension25–10 reps@10
4BLeg Curl25–10 reps@10
5Wrist Curls26–10 reps@10
#ExerciseSetsRepsLoad
1Bench Press (Barbell)15 reps65%
15 reps75%
15 reps85%
2Bench Press (Barbell)1AMRAP85%
3Pull-Up (Weighted)26–10 reps@10
4Lateral Raise (Dumbbell)26–12 reps@10
Superset
5ASingle Arm Tricep Extension (Cable)26–12 reps@10
5BHammer Curl26–12 reps@10
Superset
6APec Deck (Machine)26–12 reps@10
6BReverse Pec Deck26–12 reps@10

Weeks 2–3 are in the app

Download Boostcamp to follow the full program with auto-progression and built-in coaching notes.

Common questions

Yes, 5/3/1 Eternal is completely free to follow on Boostcamp. Download the app on iOS or Android, find the program, and start your first workout immediately. All 3 weeks are fully unlocked.

This program is built around a full gym. Make sure you have consistent access before starting, since the progression model assumes you can perform the same movements week over week.

Each session typically takes around 90 minutes to complete. That estimate covers your working sets but doesn't account for warm-up or rest between sets, so budget a little extra time when you're first learning the movements.

5/3/1 Eternal is structured around 4 training days per week, with rest days built in to allow for recovery. The Boostcamp app lets you reschedule sessions if your week doesn't go to plan.

The program runs for 3 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.

5/3/1 Eternal is available inside the Boostcamp app, free on iOS and Android. Once you download the app, you can search for the program by name. The app tracks all your sets and weights automatically, so you always know exactly what to do next session.

Get started

Boostcamp app
11,000+ free programsStrength, hypertrophy, powerlifting and more, from elite coaches. All free.
Auto-progressionWeights and targets update automatically based on how you perform.
Coaching notesBuilt-in cues from the creator inside every workout session.
Progress trackingLog every set and see your strength gains over weeks and months.
Advanced analyticsTrack volume, intensity, and 1RM trends to see exactly how your training is evolving.
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