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Griffin 4+1
IntermediateFree

Griffin 4+1

Griffin O.
Griffin O.· Jul 2024
1athletes running this program
iOS & Android

Overview

Length
12 weeks
Days / week
6 days
Level
Intermediate
Goal
Muscle, Strength, Women's
Equipment
Full Gym
Session length
90 min
4 Days on 1 Day off Bodybuilding workout routine.

Who it's for

Intermediate athletes ready for a structured program
Athletes focused on gaining both size and strength
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
11.7%
Upper Back
10.1%
Front Delts
10%
Middle Delts
9.9%
Abs
9.8%
Rear Delts
9.3%
Biceps
7.1%
Lats
6.1%
Hamstrings
5.3%
Quadriceps
5%
Glutes
5%
Forearms
2.8%
Chest
2.2%
Adductors
2.1%
Abductors
1.8%
Lower Back
1.7%
Week 1 Workouts
#ExerciseSetsRepsLoad
1Incline Bench Press (Dumbbell)36–10 reps@9
2MTS Decline Bench28–12 reps@9
3Dip (Bodyweight)2AMRAP
4Pec Fly38–12 reps@9
5Lateral Raise (Cable)410–20 reps@9
6Lateral Raise (Dumbbell)46–12 reps@9
#ExerciseSetsRepsLoad
1Lat Pulldown36–10 reps@9
2Chest Supported T-Bar Row36–10 reps@9
3Free Motion Single Arm Pulldown38–12 reps@9
4Seated Wide-Grip Row (Cable)38–12 reps@9
5Rear Delt Fly (Machine)68–12 reps@9
6Face Pull310–20 reps@9
7Reverse Forearm Curl48–12 reps@9
8Forearm Curl48–12 reps@9
#ExerciseSetsRepsLoad
1Tricep Pushdown (Cable)36–10 reps@9
2Tricep Press28–12 reps@9
3Hammer Curl36–12 reps@9
4Bicep Curl (Dumbbell)48–12 reps@9
5Skull Crusher (Barbell)28–12 reps@9
6Seated Shoulder Press (Dumbbell)46–10 reps@9
7Preacher Curl (Barbell)36–12 reps@9
8Single Arm Tricep Extension (Cable)38–12 reps@9
9Shoulder Press (smith Machine)38–12 reps@9
#ExerciseSetsRepsLoad
1Hack Squat45–10 reps@9
2Leg Extension38–12 reps@9
3Single Leg Extension310–20 reps@9
4Hip Abductor (Machine)48–12 reps@9
5Leg Raise (Captain's Chair)4AMRAP@9
6Abs Crunch (Weighted)410–20 reps@9
#ExerciseSetsRepsLoad
1Incline Bench Press (smith Machine)36–10 reps@9
2ISO Flat Bench38–12 reps@9
3Wide Chest Iso28–12 reps@9
4Free Motion Chest Fly310–20 reps@9
5Lateral Raise (Dumbbell)46–10 reps@9
6Lateral Raise (Cable)410–20 reps@9
#ExerciseSetsRepsLoad
1High Row36–10 reps@9
2Iso Pull Down36–10 reps@9
3Seated Row (Cable)38–12 reps@9
4Pull-Up (Assisted)38–12 reps@9
5Rear Delt Fly (Machine)78–12 reps@9
6Forearm Curl48–12 reps@9
7Reverse Forearm Curl48–12 reps@9

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, Griffin 4+1 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.

Griffin 4+1 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 12 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.

Griffin 4+1 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
11,000+ 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.
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