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New entry (Upper _Lower)
Intermediate–AdvancedFree

New entry (Upper _Lower)

“Split, Strengthen, Sculpt: Bigger Legs, Balanced Gains.”

Dimitrios Karatzas
Dimitrios Karatzas· Apr 2025
iOS & Android

Overview

Length
12 weeks
Days / week
4 days
Level
Intermediate, Advanced
Goal
Muscle, Strength
Equipment
Full Gym
Session length
80 min
The purpose of this 12‑week Upper/Lower split workout program is to promote balanced hypertrophy and strength gains by dividing training sessions into dedicated upper‑body and lower‑body days, with a particular emphasis on maximizing lower‑limb development. By isolating muscle groups across four weekly workouts, the program allows for sufficient training volume and recovery, thereby optimizing the anabolic environment needed for muscle fiber growth. Specifically, targeted exercise selection—such as heavy compound movements (e.g., back squats, Romanian deadlifts) and complementary isolation work (e.g., leg extensions, seated calf raises)—combined with progressive overload protocols (e.g., incremental increases in load, volume, or time under tension) aims to stimulate the quads, hamstrings, glutes, and calves more effectively. In doing so, this program seeks not only to increase overall leg circumference and muscular definition but also to improve functional lower‑body strength and injury resistance, supporting both athletic performance and everyday movement quality.

Who it's for

Athletes at the Intermediate–Advanced level
Athletes focused on gaining both size and strength
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
11.2%
Hamstrings
10.9%
Quadriceps
10.4%
Chest
9.2%
Lats
8.7%
Glutes
8.1%
Biceps
7.5%
Triceps
7.3%
Front Delts
6.9%
Abs
5.1%
Middle Delts
3.2%
Rear Delts
2.9%
Calves
2.6%
Lower Back
2.3%
Adductors
2.1%
Forearms
1.3%
Abductors
0.4%
Week 1 Workouts
#ExerciseSetsRepsLoad
1Chest Fly (Machine)310 reps@8
2Bench Press (Barbell)28+ reps@9
112+ reps@9
3Incline Chest Press (Machine)310–12 reps@8.5
4Dip (Bodyweight)210 reps@8
5High Row310 reps@9.5
6Underhand Lat Pulldown212 reps@9.5
7Shoulder Press (Machine)310+ reps@9.5
8Rear Delt Fly (Cable)212 reps@9.5
9One Arm Lateral Raise (Dumbbell)28 reps@8.5
#ExerciseSetsRepsLoad
1Leg Curl310 reps@8.5
2Squat (Barbell)38 reps@8.5
3Bulgarian Split Squat (Barbell)310 reps@9.5
4Leg Press (45 Degrees)315 reps@9.5
5Hip Adductor (Machine)210 reps@8.5
6Standing Calf Raise215 reps@10
7Abs Crunch (Bodyweight)320 reps@10
#ExerciseSetsRepsLoad
1Pull-Up (Weighted)310 reps@10
2Bent Over Row (Barbell)38 reps@8.5
3Shrug (Trap Bar)210 reps@10
4Lat Pulldown28 reps@9.5
5Seated Row (Cable)210 reps@9.5
6Bench Press (Dumbbell)212 reps@9.5
7Incline Bench Press (Dumbbell)212 reps@8.5
Superset
8ABicep Curl (EZ Bar)210 reps@8.5
8BSkull Crusher210 reps@8.5
Superset
9ATricep Pushdown (Cable)210 reps@8.5
9BIncline Curl (Dumbbell)210 reps@9
#ExerciseSetsRepsLoad
1Front Squat (Barbell)310 reps@8.5
2Stiff Leg Deadlift38 reps@8.5
3Leg Extension212 reps@9
4Lying Leg Curl310 reps@9.5
5Single Leg Press212 reps@9.5
621s (EZ Bar)221 reps@8.5
7Rear Delt Fly (Cable)212 reps@9.5
8Standing Calf Raise215 reps@10
9Side Crunch (Cable)315 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, New entry (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 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 80 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.

New entry (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 12 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.

New entry (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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