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Muscle Builder
Beginner–IntermediateFree

Muscle Builder

JD C.
JD C.· Feb 2025
1athletes running this program
iOS & Android

Overview

Length
12 weeks
Days / week
3 days
Level
Beginner, Intermediate
Goal
Muscle, Women's, Strength
Equipment
Full Gym
Session length
60 min
My 12 week Muscle Building Workout. Last set of each exercise I do a drop set. Also, try to keep up with the weight you do each exercise and increase that each week.

Who it's for

Beginners new to structured strength training
Athletes focused on gaining both size and strength
Athletes who can train 3 days per week
Athletes with access to a full gym (barbells, dumbbells, cables, and machines)

Muscle engagement

Front
Back
Chest
11.9%
Front Delts
11.4%
Triceps
10.5%
Biceps
9.5%
Lats
9.5%
Upper Back
9.5%
Hamstrings
9.5%
Quadriceps
8.3%
Glutes
7.1%
Middle Delts
4.8%
Calves
2.4%
Forearms
1.7%
Lower Back
1.2%
Abs
1.2%
Abductors
1.2%
Rear Delts
0.5%
Week 1 Workouts
#ExerciseSetsRepsLoad
1Shoulder Press (Machine)115–20 reps@5–6
18–12 reps@7–8
15–8 reps@8–9
2Incline Bench Press (Dumbbell)112–15 reps@5–6
18–12 reps@7–8
15–8 reps@8–9
3Incline Curl (Dumbbell)212–20 reps@5–7
18–15 reps@6–8
4Lat Pulldown210–15 reps@6–7
18–12 reps@7–8
5Bent Over Row (Barbell)210–15 reps@6–7
18–12 reps@7–8
6Dip (Bodyweight)315–20 reps@7
7Chest Fly (Machine)210–15 reps@7
16–10 reps@8
#ExerciseSetsRepsLoad
1Stiff Leg Deadlift110–15 reps@6
18–12 reps@7
15–10 reps@8
2Belt Squat110–15 reps@6
18–12 reps@7
15–10 reps@8
3Leg Curl110–15 reps@6
110–15 reps@7
18–12 reps@8
4Leg Extension110–15 reps@6
110–15 reps@7
18–12 reps@8
5Leg Press110–15 reps@6
110–15 reps@7
18–12 reps@8
6Calf Raise (Leg Press)115–20 reps@6
112–16 reps@7
110–15 reps@8
#ExerciseSetsRepsLoad
1Shoulder Press (Machine)115–20 reps@5–6
18–12 reps@7–8
15–8 reps@8–9
2Incline Bench Press (Dumbbell)112–15 reps@5–6
18–12 reps@7–8
15–8 reps@8–9
3Incline Curl (Dumbbell)212–20 reps@5–7
18–15 reps@6–8
4Lat Pulldown210–15 reps@6–7
18–12 reps@7–8
5Bent Over Row (Barbell)210–15 reps@6–7
18–12 reps@7–8
6Dip (Bodyweight)315–20 reps@7
7Chest Fly (Machine)210–15 reps@7
16–10 reps@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, Muscle Builder 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 60 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.

Muscle Builder is structured around 3 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.

Muscle Builder 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