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4-Week Lower Body Priority Strength Program
IntermediateFree

4-Week Lower Body Priority Strength Program

Focused strength. Simple progression.

K3
K3· Dec 2025
iOS & Android

Overview

Length
4 weeks
Days / week
3 days
Level
Intermediate
Goal
Muscle, Strength
Equipment
Full Gym
Session length
60 min
This 4-week program is designed for lifters who want to build strength and muscle using a focused, deliberate approach rather than high fatigue or excessive volume. Training three times per week, the program prioritizes the main barbell lifts (squat, deadlift, bench and military press) while maintaining balanced upper-body development through carefully selected accessory work. The structure emphasizes high effort, controlled volume, and clear progression. Each workout includes a small number of exercises, allowing you to rest adequately between sets and consistently train close to your true working capacity. Rather than chasing exhaustion, the goal is to apply meaningful effort where it matters most. All exercises in the program follow the same progression logic. Each movement has a set rep target (for example, 3 sets of 6 reps). These reps should feel challenging (especially in the final set), often approaching technical failure. As strength improves, the goal is to gradually add reps while maintaining good form. Once you are able to perform two additional reps per set across all working sets (for example, moving from 3×6 to 3×8), the weight is increased, and the progression restarts at the original rep target. This approach keeps progression simple, measurable, and easy to track, while encouraging consistent effort rather than guesswork. Accessories follow the same principles, reinforcing both hypertrophy and long-term joint resilience. The program also includes slight A/B variations in accessory exercises across weeks. These rotations provide variety and balanced muscle development without complicating the structure or interfering with recovery. Rest periods are intentionally longer than in typical high-volume programs (2.5-3 minutes). By limiting the number of exercises and sets, you can take adequate rest between efforts, push each set harder, and still complete each session within approximately 80 minutes. This program is ideal for intermediate lifters seeking a sustainable strength and hypertrophy block that fits into real life: focused, demanding, and designed to reward consistency over time.

Who it's for

Intermediate athletes ready for a structured program
Athletes focused on gaining both size and strength
Athletes who can train 3 days per week
Athletes with access to a full gym (barbells, dumbbells, cables, and machines)

Muscle engagement

Front
Back
Glutes
10.6%
Hamstrings
10.1%
Triceps
9.7%
Quadriceps
8.8%
Front Delts
8.8%
Calves
7%
Chest
7%
Upper Back
7%
Biceps
7%
Abs
5.3%
Lats
5.3%
Lower Back
3.5%
Abductors
2.6%
Middle Delts
2.6%
Adductors
2.2%
Forearms
2.2%
Week 1 Workouts
#ExerciseSetsReps
1Squat (Barbell)36 reps
2Bulgarian Split Squat (Dumbbell)38 reps
3Leg Extension310 reps
4Hip Abductor (Machine)312 reps
5Standing Calf Raise415 reps
#ExerciseSetsReps
1Bench Press (Barbell)36 reps
2Incline Bench Press (Dumbbell)38 reps
3Overhead Press (Barbell)36 reps
4Chest Fly (Machine)310 reps
5Tricep Rope Push Down (Cable)310 reps
#ExerciseSetsReps
1Deadlift (Barbell)34 reps
2Hip Thrust (Machine)38 reps
3Lying Leg Curl312 reps
4Standing Calf Raise415 reps
5Back Extension312 reps

Weeks 2–4 are in the app

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

Common questions

Yes, 4-Week Lower Body Priority Strength Program is completely free to follow on Boostcamp. Download the app on iOS or Android, find the program, and start your first workout immediately. All 4 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-Week Lower Body Priority Strength Program is structured around 3 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 4 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.

4-Week Lower Body Priority Strength Program 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.
Free on iOS & Android