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flexibility_program
BeginnerFree

flexibility_program

Simon M.
Simon M.· Apr 2026
iOS & Android

Overview

Length
18 weeks
Days / week
7 days
Level
Beginner
Goal
Athletics
Equipment
Dumbbell Only
Session length
20 min
To build flexibility fast and correctly

Who it's for

Beginners new to structured strength training
Athletes focused on athletics
Athletes who can train 7 days per week
Athletes with access to a set of dumbbells

Muscle engagement

Front
Back
Stretching
20.9%
Lats
15.7%
Forearms
13.9%
Quadriceps
10.4%
Glutes
10.4%
Hamstrings
10.4%
Chest
7.8%
Adductors
5.2%
Abs
5.2%
Week 1 Workouts
#ExerciseSetsReps
1Side Leg Swings115 reps
2Arm Circle115 reps
3Deep squat sit11 min
4Jefferson Curl36 reps
5Forward Fold21 min
#ExerciseSetsRepsLoad
1Side Leg Swings115 reps
2Arm Circle115 reps
3Deep squat sit11 min
4Pullover (Dumbbell)18 reps+5 lbs
18 reps+5 lbs
18 reps+5 lbs
5Wall Shoulder Flexion Stretch11 min
11 min
6Dead Hang11 min
11 min
#ExerciseSetsRepsLoad
1Side Leg Swings115 reps
2Arm Circle115 reps
3Deep squat sit11 min
4Cossack Squat16 reps+5 lbs
16 reps+5 lbs
16 reps+5 lbs
5Wide Straddle Hold11 min
11 min
#ExerciseSetsRepsLoad
1Side Leg Swings115 reps
2Arm Circle115 reps
3Deep squat sit11 min
4ATG Split Squat16 reps+5 lbs
16 reps+5 lbs
16 reps+5 lbs
5Half Kneeling Hip Flexor Stretch11 min
11 min
#ExerciseSetsRepsLoad
1Side Leg Swings115 reps
2Arm Circle115 reps
3Deep squat sit11 min
4Jefferson Curl36 reps
5Forward Fold21 min
6Pullover (Dumbbell)18 reps+5 lbs
18 reps+5 lbs
18 reps+5 lbs
7Wall Shoulder Flexion Stretch11 min
11 min
8Dead Hang11 min
11 min
#ExerciseSetsReps
1Forward Fold Hold21 min
2Cossack Squat Hold20.5 min
3Deep Squat Sit21 min
4Half-kneeling Hip Flexor20.75 min
5Dead Hang20.5 min
6Light Dumbbell Pullover210 reps
#ExerciseSetsRepsLoad
1Side Leg Swings115 reps
2Arm Circle115 reps
3Deep squat sit11 min
4Jefferson Curl36 reps
5Forward Fold21 min
6Pullover (Dumbbell)18 reps+5 lbs
18 reps+5 lbs
18 reps+5 lbs
7Wall Shoulder Flexion Stretch11 min
11 min
8Dead Hang11 min
11 min
9ATG Split Squat16 reps+5 lbs
16 reps+5 lbs
16 reps+5 lbs
10Half Kneeling Hip Flexor Stretch11 min
11 min
11Cossack Squat16 reps+5 lbs
16 reps+5 lbs
16 reps+5 lbs
12Wide Straddle Hold11 min
11 min

Weeks 2–18 are in the app

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

Common questions

Yes, flexibility_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 18 weeks are fully unlocked.

This program is built around a dumbbell only. 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 20 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.

flexibility_program is structured around 7 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 18 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.

flexibility_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
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