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4 day upper lower
IntermediateFree

4 day upper lower

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A Morrell
A Morrell· May 2025
1athletes running this program
iOS & Android

Overview

Length
8 weeks
Days / week
4 days
Level
Intermediate
Goal
Muscle
Equipment
Full Gym
Session length
60 min
Science based Hypertrophy training with 3 days off or can be done 5 times a week taking a rest day after every upper lower. Deload for one week after 6-8 weeks finished.

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
Quadriceps
13%
Glutes
11.2%
Hamstrings
11%
Upper Back
9.4%
Chest
9%
Lats
7.2%
Triceps
7%
Adductors
6%
Front Delts
5.2%
Rear Delts
4.4%
Biceps
4.4%
Calves
4%
Abductors
4%
Middle Delts
2.8%
Abs
1%
Forearms
0.4%
Week 1 Workouts
#ExerciseSetsRepsLoad
1Leg Curl110 reps@10
18 reps@10
2Squat (Smith Machine)13–6 reps@9.5
13–6 reps@10
3Bulgarian Split Squat (Dumbbell)24–8 reps@10
4Leg Extension210 reps@10
5Glute-Ham Raise110 reps@9.5
18 reps@10
6Standing Calf Raise212 reps@10
7Hip Abductor (Machine)212 reps@10
8Hip Adductor (Machine)212 reps@10
#ExerciseSetsRepsLoad
1Squat (Smith Machine)16 reps@9
15 reps@9.5
14 reps@10
2Leg Extension210 reps@10
3Single Leg Press112 reps@9.5
110 reps@10
4Single-Leg Leg Curl112 reps@9.5
110 reps@10
5Hip Adductor (Machine)212 reps@10
6Hip Abductor (Machine)212 reps@10
7Standing Calf Raise212 reps@10
#ExerciseSetsRepsLoad
1One Arm Lateral Raise (Cable)210 reps@10
2Incline Bench Press (Smith Machine)18 reps@9.5
18 reps@10
3Chest Press (Machine)110 reps@10
4Chest Fly (Machine)18 reps@9.5
18 reps@10
5Lat Pulldown110 reps@10
6Chest Supported Row (Machine)28 reps@10
7Reverse Pec Deck112 reps@8
112 reps@10
8Tricep Pushdown (Cable)210 reps@10
#ExerciseSetsRepsLoad
1Incline Bench Press (Smith Machine)28 reps@9.5
2Chest Fly (Machine)18 reps@9.5
18 reps@10
3Lat Pulldown210 reps@10
4Chest Supported Row (Machine)28 reps@10
5Pull-Up (Assisted)115 reps@10
6Reverse Pec Deck112 reps@8
112 reps@10
7Overhead Tricep Extension (Cable)110 reps@8
110 reps@10
8Preacher Curl (Dumbbell)210 reps@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 upper lower 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 upper lower 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 upper lower 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.
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