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Big Loz 12 week program
IntermediateFree

Big Loz 12 week program

From the great mind and expertise of Strongman and Coach, Lawrence Shahlaei (Big Loz)! Challenge yourself with this 12 week intermediate program.

Cody Brumley
Cody Brumley· Nov 2025
2athletes running this program
iOS & Android

Overview

Length
12 weeks
Days / week
4 days
Level
Intermediate
Goal
Athletics, Muscle, Strength
Equipment
Full Gym
Session length
90 min
**Big Loz 12 Week Program** Transform your strength and physique with this comprehensive 12-week program designed for serious lifters. Training four days a week, you'll engage in a variety of compound and isolation exercises, including Deadlifts, Overhead Presses, and Squats, with a focus on progressive overload to maximize gains. Each workout is structured to push your limits and enhance your performance, ensuring you stay motivated and on track for success. Whether you're looking to build muscle, increase strength, or improve your overall fitness, this program will guide you every step of the way. Get ready to unleash your potential! I take no credit for this program, I simply transferred from PDF to the app.

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
11.2%
Upper Back
9.9%
Triceps
8.4%
Lats
7.9%
Abs
7.8%
Forearms
7.3%
Glutes
7.2%
Hamstrings
7.1%
Middle Delts
6.7%
Front Delts
5.8%
Lower Back
5.7%
Biceps
5.2%
Rear Delts
4%
Chest
2.5%
Adductors
1.7%
Full-Body
1.1%
Abductors
0.4%
Week 1 Workouts
#ExerciseSetsRepsLoad
1Overhead Press (Barbell)48 reps70%
2Incline Chest Press (Machine)48 reps@7
Superset
3ALateral Raise (Dumbbell)315 reps@7
3BRear Delt Fly (Dumbbell)315 reps@7
4Overhead Extension (EZ Bar)38 reps@7
5Tricep Rope Push Down (Cable)415 reps@7
6Behind The Back Holds31 min@7
#ExerciseSetsRepsLoad
1Deadlift (Barbell)48 reps70%
2Deadlift (Paused)45 reps50%
3Pendlay Row310 reps@7
4Lat Pulldown (Neutral Grip)412 reps@7
5Chest Supported Row (Machine)412 reps@7
6Bicep Curl (Dumbbell)48 reps@7
7Plank31 min@7
#ExerciseSetsRepsLoad
1Safety Bar Squat48 reps65%
2Leg Press (45 Degrees)310–15 reps@7
3Leg Curl412 reps@7
4Back Extension (Weighted)312 reps@7
5Leg Extension412 reps@7
6Abs Crunch (Machine)315 reps@7
#ExerciseSetsRepsLoad
1Push Press (Barbell)45 reps72.5%
2Farmer's Walk (Weighted)320 reps@6
3Loading Medley310 reps@6
4Behind The Back Holds31 min@8

Weeks 2–12 are in the app

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

Common questions

Yes, Big Loz 12 week program is completely free to follow on Boostcamp. Download the app on iOS or Android, find the program, and start your first workout immediately. All 12 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.

Big Loz 12 week program 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 12 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.

Big Loz 12 week program 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
1,000+ 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.
Free on iOS & Android