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SYMBIOTE: 4 Day Synergy Split
IntermediateFree

SYMBIOTE: 4 Day Synergy Split

Coach Zylan
Coach Zylan· Feb 2024
3athletes running this program
iOS & Android

Overview

Length
12 weeks
Days / week
4 days
Level
Intermediate
Goal
Muscle, Women's
Equipment
Full Gym
Session length
90 min
This program will mostly pair muscle groups that work synergistically. The Four training days are Back + Hamstrings, Chest + Triceps, Quads + Calves, and Shoulders + Biceps. This split checks all the boxes, but leaves room for focusing certain muscle groups with more volume. The exercise selection focuses on basic movements that can effectively be progressed, while also allowing some variation where needed. With this program, you can spread the 4 workouts throughout each week if you need more recovery time (recommended for beginners) it can also be run 4 days on, 1 day off, on repeat; or it can even be run perpetually if you feel your recovery is up to par. If you choose either of the latter options just run the program twice in a row (and consider at least a week deload in between )

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
Upper Back
11.4%
Chest
10%
Hamstrings
9.7%
Triceps
8.9%
Front Delts
8.9%
Biceps
8.3%
Glutes
7.8%
Quadriceps
6.9%
Middle Delts
6.7%
Calves
5.6%
Lats
5%
Rear Delts
3.9%
Abs
3.3%
Lower Back
1.7%
Forearms
1.1%
Adductors
0.8%
Week 1 Workouts
#ExerciseSetsRepsLoad
1Bent Over Row (Barbell)18–12 reps@8
110–15 reps@9
2Stiff Leg Deadlift16–10 reps@9
18–12 reps@10
3Pull-Up (Bodyweight)28–15 reps@9
4Seated Hamstring Curl110–15 reps@9
112–20 reps@10
#ExerciseSetsRepsLoad
1Incline Bench Press (Dumbbell)18–12 reps@7
18–12 reps@8
2Bench Press (Close Grip)16–10 reps@8
16–10 reps@9
3Dip (Bodyweight)18–12 reps@9
110–15 reps@10
4Overhead Tricep Extension (Cable)18–12 reps@9
110–15 reps@10
5Chest Fly (Cable)110–15 reps@8
115–25 reps@10
#ExerciseSetsRepsLoad
1High Bar Squat (Barbell)15–8 reps@9
18–12 reps@8
18–12 reps@9
2Split Squat (Smith Machine)110–15 reps@9
112–20 reps@10
3Seated Calf Raise212–20 reps@8
4Standing Calf Raise18–12 reps@9
18–12 reps@10
#ExerciseSetsRepsLoad
1Face Pull120 reps@7
115 reps@7
115 reps@8
2Preacher Curl (Barbell)210–15 reps@8
3Incline Curl (Dumbbell)18–12 reps@9
18–12 reps@10
4Lateral Raise (Dumbbell)212–20 reps@8
5Upright Row (Barbell)110–15 reps@9
112–20 reps@10

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, SYMBIOTE: 4 Day Synergy Split 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.

SYMBIOTE: 4 Day Synergy Split 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.

SYMBIOTE: 4 Day Synergy Split 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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