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4 Day Maximum Mass Workout
IntermediateFree

4 Day Maximum Mass Workout

Jesús Martínez Pérez
Jesús Martínez Pérez· Jan 2025
4athletes running this program
iOS & Android

Overview

Length
8 weeks
Days / week
4 days
Level
Intermediate
Goal
Muscle
Equipment
Full Gym
Session length
60 min
Overload Overload is critical to the muscle building process. Push each set for the maximum number of reps, stopping that set either when you feel your form is slipping, or if you feel like you may fail on the next rep. Do not train to failure. The point is to stimulate growth, not annihilate your body and central nervous system. Add weight to each exercise as frequently as possible, when it makes sense. I recommend using the same weight for every set of a given exercise, and when you are able to perform a comfortable number of reps on each set, add weight. Rep Ranges Rep ranges are simply a guideline. It's is ok to go over them, or a hair under at times. Again, the magic is overload. Rep ranges are simply a tool. 5 Minute Burn Periods For each body part you will perform a 5 minute burn out period. These sets are brutal. Pick a weight that allows you to perform about 12-15 reps. Over a 5 minute period you perform as many reps as possible with that weight, starting and stopping sets as needed. Rest only long enough to catch your bearings and breathe, and then start knowing out more reps. 5 minute burn out periods are not about sets and reps. They are about finishing off an already fatigued muscle. Don't obsess (or even count) over how many total sets you do. Instead, try to do as many reps as possible in 5 minutes using whatever rest periods you need to survive.

Who it's for

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

Muscle engagement

Front
Back
Triceps
13.6%
Front Delts
13.6%
Upper Back
9.8%
Biceps
8.4%
Chest
7.6%
Middle Delts
7.6%
Quadriceps
7.1%
Hamstrings
7.1%
Glutes
6.5%
Lats
6%
Forearms
3.8%
Abs
2.5%
Calves
2.2%
Lower Back
1.6%
Adductors
0.8%
Abductors
0.8%
Rear Delts
0.8%
Week 1 Workouts
#ExerciseSetsRepsLoad
1Lat Pulldown1AMRAP
2Lat Pulldown36–10 reps
3Single Arm Row (Dumbbell)38–12 reps
4Bent Over Row (Barbell)38–12 reps
5Seated Row (Cable)15 min@10
6Bicep Curl (Barbell)10 reps
7Preacher Curl (EZ Bar)310–12 reps
8Concentration Curl310–12 reps
9Seated Dumbbell Curl15 min@10
#ExerciseSetsRepsLoad
1Bench Press (Barbell)1AMRAP
2Bench Press (Barbell)36–10 reps
3Incline Bench Press (Dumbbell)38–12 reps
4Dip (Bodyweight)3AMRAP
5Pec Deck (Machine)312–15 reps
6Chest Press (Machine)15 min@10
7Skull Crusher (Barbell)38–12 reps
8Tricep Extension (Dumbbell)38–12 reps
9Tricep Extension (Cable)15 min@10
#ExerciseSetsRepsLoad
1Safety Bar Squat36–10 reps
2Leg Press315–20 reps
3Hack Squat38–12 reps
4Leg Extension15 min@10
5Deadlift (Barbell)38–12 reps
6Lying Leg Curl15 min@10
7Standing Calf Raise310–15 reps
8Seated Calf Raise15 min@10
#ExerciseSetsRepsLoad
1Seated Overhead Press (Barbell)36–10 reps
2Arnold Press38–12 reps
3Lateral Raise (Dumbbell)310–15 reps
4AD Press (Smith Machine)15 min@10
5Upright Row (Barbell)38–12 reps
6Upright Row (Cable)15 min@10
7Wrist Curls312–15 reps
8Barbell Static Hold15 min@10

Weeks 2–8 are in the app

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

Common questions

Yes, 4 Day Maximum Mass Workout is completely free to follow on Boostcamp. Download the app on iOS or Android, find the program, and start your first workout immediately. All 8 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.

4 Day Maximum Mass Workout 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 8 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.

4 Day Maximum Mass Workout 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

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