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SBL
IntermediateFree

SBL

Science based

· Nov 2025
iOS & Android

Overview

Length
18 weeks
Days / week
6 days
Level
Intermediate
Goal
Muscle
Equipment
Full Gym
Session length
120 min
To be bigger and stronger

Who it's for

Intermediate athletes ready for a structured program
Athletes focused on building muscle size
Athletes who can train 6 days per week
Athletes with access to a full gym (barbells, dumbbells, cables, and machines)

Muscle engagement

Front
Back
Triceps
13.5%
Biceps
12.7%
Chest
10.9%
Upper Back
10.3%
Front Delts
8.8%
Middle Delts
7%
Lats
6.9%
Glutes
6.2%
Forearms
4.4%
Lower Back
4.4%
Hamstrings
4.4%
Abs
3.7%
Quadriceps
3.1%
Calves
3.1%
Rear Delts
0.6%
Week 1 Workouts
#ExerciseSetsRepsLoad
1Incline Chest Press (Machine)1100 reps@8
1100 reps@7
2T-Bar Row180 reps4%
3Kelso Shrug190 reps@8
4Incline Cable Chest Press120 reps@8
120 reps@7
5Lat Pulldown190 reps@6.5
6Seated Row (Cable)190 reps5%
#ExerciseSetsReps
1Leg Extension10 reps
2Hamstring Curl10 reps
3Seated Calf Raise10 reps
4Hip Thrust (Machine)10 reps
5Back Extension (Weighted)10 reps
6Abs Crunch (Weighted)10 reps
#ExerciseSetsRepsLoad
1Incline Chest Press (Machine)1100 reps@8
1100 reps@7
2T-Bar Row180 reps4%
3Kelso Shrug190 reps@8
4Lateral Raise (Cable)10 reps
5Preacher Curl (Dumbbell)10 reps
6Overhead Tricep Extension (Cable)10 reps
7Incline Cable Chest Press120 reps@8
8Bicep Curl (Dumbbell)10 reps
9Tricep Pushdown (Cable)10 reps
10Lat Pulldown190 reps@6.5
11Reverse Curl (Barbell)10 reps
#ExerciseSetsReps
1Leg Extension10 reps
2Hamstring Curl10 reps
3Seated Calf Raise10 reps
4Hip Thrust (Machine)10 reps
5Back Extension (Weighted)10 reps
6Abs Crunch (Weighted)10 reps
#ExerciseSetsReps
1Lateral Raise (Dumbbell)20 reps
2Shoulder Press (Machine)10 reps
3Preacher Curl (Dumbbell)10 reps
4Overhead Tricep Extension (Cable)10 reps
5Bicep Curl (Dumbbell)20 reps
6Tricep Pushdown (Cable)20 reps
7Reverse Curl (Barbell)10 reps
8Face Away Cable Curl10 reps

Weeks 2–18 are in the app

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

Common questions

Yes, SBL is completely free to follow on Boostcamp. Download the app on iOS or Android, find the program, and start your first workout immediately. All 18 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 120 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.

SBL is structured around 6 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 18 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.

SBL 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