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3x L/U/FB
IntermediateFree

3x L/U/FB

Sculpt & muscle

Reinikainen Emil
Reinikainen Emil· Feb 2026
1athletes running this program
Free on iOS & Android

Overview

Length
10 weeks
Days / week
3 days
Level
Intermediate
Goal
Muscle, Women's
Equipment
Full Gym
Session length
50 min
10-week time friendly training program

Who it's for

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

Muscle engagement

Front
Back
Triceps
11.4%
Upper Back
10%
Glutes
9.5%
Front Delts
9.5%
Hamstrings
8.1%
Quadriceps
7.6%
Lats
7.6%
Biceps
6.7%
Middle Delts
6.2%
Abs
5.7%
Chest
5.7%
Adductors
3.3%
Rear Delts
2.9%
Lower Back
2.4%
Abductors
1.9%
Forearms
1.4%
Week 1 Workouts
#ExerciseSetsReps
1Hip Thrust (Machine)38 reps
Superset
2AHip Abductor (Machine)212 reps
2BHip Adductor (Machine)212 reps
3Bulgarian Split Squat (Dumbbell)210 reps
4Leg Extension315 reps
5Decline Crunch (Weighted)310 reps
#ExerciseSetsReps
1Seated Overhead Press (Dumbbell)310 reps
2Pull-Up (Assisted)36 reps
3Push Up (Knees)3AMRAP
4Seated Row (Machine)310 reps
Superset
5AOverhead Tricep Extension (Dumbbell)312 reps
5BBicep Curl (Dumbbell)312 reps
#ExerciseSetsReps
1Squat (Barbell)38 reps
2Incline Bench Press (Dumbbell)38 reps
3Hamstring Curl212 reps
4Single Arm Row (Dumbbell)210 reps
5Lateral Raise (Dumbbell)212 reps
6Rear Delt Fly (Machine)212 reps

Weeks 2–10 are in the app

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

Common questions

Yes, 3x L/U/FB is completely free to follow on Boostcamp. Download the app on iOS or Android, find the program, and start your first workout immediately. All 10 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.

3x L/U/FB 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 10 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.

3x L/U/FB 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
Auto-progressionWeights and targets update automatically based on how you perform.
Training logLog every set and track your weights automatically each session.
Progress trackingSee your strength gains over weeks and months with built-in analytics.
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