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Lean & Built
All LevelsFree

Lean & Built

Cut fat and preserve/grow muscle

Justo Yanez
Justo Yanez· Mar 2025
3athletes running this program
iOS & Android

Overview

Length
6 weeks
Days / week
6 days
Level
Intermediate, Advanced, Beginner
Goal
Women's
Equipment
Full Gym
Session length
50 min
A strength-focused fat-loss program designed to help you lean out, maintain (and grow!) muscle, and bring up your chest while reducing belly fat. Perfect for 4 lifting days + 1 cardio day.

Who it's for

Athletes of all experience levels
Athletes focused on women's
Athletes who can train 6 days per week
Athletes with access to a full gym (barbells, dumbbells, cables, and machines)

Muscle engagement

Front
Back
Abs
15.3%
Other
11%
Hamstrings
10.1%
Quadriceps
9.5%
Triceps
8.3%
Glutes
8.3%
Front Delts
7.9%
Upper Back
5.1%
Lats
5%
Chest
4.8%
Biceps
4.2%
Middle Delts
3.2%
Adductors
1.9%
Forearms
1.5%
Calves
1.2%
Lower Back
1.1%
Abductors
1%
Rear Delts
0.7%
Week 1 Workouts
#ExerciseSetsRepsLoad
1Bench Press (Barbell)38 reps@7
2Bent Over Row (Barbell)38 reps@7
3Seated Shoulder Press (Dumbbell)310 reps@8
Superset
4ABicep Curl (Dumbbell)212 reps@8
4BTricep Pushdown (Cable)212 reps@8
5Plank30.5–1 min
6Incline Treadmill Walk (5–10 Incline, 3.0 Speed)110–20 min
#ExerciseSetsRepsLoad
1Squat (Barbell)36–8 reps@7
2Romanian Deadlift (Barbell)38 reps@8
3Leg Press210 reps@8
4Standing Calf Raise212–15 reps@8
5Side Plank20.5–1 min
#ExerciseSetsReps
1Walk120–30 min
#ExerciseSetsRepsLoad
Superset
1AIncline Bench Press (Dumbbell)310 reps@8
1BSeated Row (Cable)310 reps@8
2Lat Pulldown212 reps@8
3Lateral Raise (Dumbbell)215 reps@9
4Push Up2AMRAP
5Hanging Leg Raise310–15 reps
6Incline Treadmill Walk (5–10 Incline, 3.0 Speed)110–20 min
#ExerciseSetsRepsLoad
1Goblet Squat312 reps@8
2Leg Curl312 reps@8
3Walking Lunge (Dumbbell)212 reps@8
4Kettlebell Swing215 reps
5Plank30.5–1 min
#ExerciseSetsReps
1Sprint200.333–0.666 min
2Walk110–15 min
Superset
3AWood Chop312 reps
3BReverse Abs Crunch (Bodyweight)315 reps
3CBird Dog310 reps

Weeks 2–6 are in the app

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

Common questions

Yes, Lean & Built is completely free to follow on Boostcamp. Download the app on iOS or Android, find the program, and start your first workout immediately. All 6 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 50 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.

Lean & Built 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 6 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.

Lean & Built 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.
Free on iOS & Android