FLEX is a 5-day-per-week training program that builds strength, conditioning, and durability in the same session. Every day has both. Neither dominates. The goal is to be capable across the board: strong enough, fit enough, durable enough.
The program runs in 6-week blocks. Each block has a clear structure and a built-in progression so you get better without guessing.
Your Daily Session
Every workout follows the same four parts in the same order.
Prep Work (10-15 minutes) warms your body up and gets your joints ready for the work ahead. Rotation exercises, stability movements, light activation. Think of it as switching from rest mode to training mode.
Performance Work (20-30 minutes) builds your strength and muscle. You start with a main compound lift (squat, bench, deadlift, press, or pull), followed by accessory work in supersets or tri-sets. This is where your numbers go up over the 6 weeks.
Conditioning Work (10-30 minutes) builds your engine. Workouts vary from short intense intervals to long steady efforts. The format, the movements, and the pacing change every single day. More on this below.
Cool-Down (5-10 minutes) is static stretching that requires no equipment. Improves flexibility, reduces soreness, and helps your body recover for the next session.
Short on time? The minimum effective session is Prep Work plus either Performance Work or Conditioning Work. Never skip Prep Work entirely. It is your injury prevention.
The 6-Week Block
Each block uses the same strength exercises for all 6 weeks. The conditioning is completely different every day and never repeats within a block. This is intentional.
Why the strength exercises stay the same
You get stronger by repeating the same movements, not by constantly switching them. When you do the same lift for 6 weeks, three things happen: your technique improves because your body learns the pattern, your loading becomes predictable because you know what you lifted last week, and your numbers go up because you are building on a foundation instead of starting from scratch every Monday.
If the exercises changed every week, most of your energy would go toward re-learning movement patterns instead of getting stronger.
What changes week to week
The exercises stay the same but the challenge builds.
- Weeks 1-2 are about finding your weights and learning the movements. Everything should feel manageable. If you are not sure, go lighter. You have 6 weeks.
- Weeks 3-4 (the halfway point) is where things shift. Rep ranges may change. Small exercise variations adjust. Loading gets heavier. This is where you start pushing.
- Weeks 5-6 are where you see what you have built. Heavier weights, better technique, and confidence that was not there in Week 1.
How to know you are progressing
Progress is not always a heavier weight. These are all signs of real progress:
The same weight feels easier than it did two weeks ago. You are completing more reps at the same weight. Your form is cleaner and more controlled. You needed fewer warm-up sets to feel ready. You recovered faster between sets.
If you are hitting the top of the rep range easily, add weight next session. For a full guide on selecting weights and using the RIR (Reps in Reserve) system, see Performance Work: Weight, Sets & Reps.
What happens after 6 weeks
A new block starts with new exercises, new rep ranges, and a fresh progression. The first week of every new block is a reset. Go lighter, learn the movements, find your weights. By Week 2 you will be back in rhythm.
Conditioning: Five Types of Training Every Week
The conditioning side of FLEX is designed so you develop every aspect of fitness every single week. Not just “cardio.” Not random workouts. Each day has a specific conditioning character that targets something different.
Every week you get all five:
- Sustain (appears twice per week) is what most people think of as conditioning. Mixed movements at a steady or hard pace, anywhere from 10 to 20 minutes. One of the two weekly Sustain pieces is typically paced (controlled effort, consistent rounds) and the other is pushed (hard effort, you manage the intensity). This is the engine builder.
- Interval (once per week) is short, hard efforts with built-in rest. You push knowing recovery is coming. These develop your ability to produce power repeatedly and recover between bursts. Think of sprinting up a hill, walking down, and going again.
- Structural (once per week) is carries, holds, loaded walks, crawls, and controlled strength work. Heavy and deliberate. Not about the clock. Builds grip strength, trunk stability, and the kind of durability that protects your body over time. This has no equivalent in most training programs and it is one of the most valuable things FLEX does for the 25-55 age group.
- Forever (once per week) is 28 minutes or more at a conversational pace. If you cannot talk in full sentences, you are going too hard. This builds your aerobic base, which is the foundation underneath everything else. It supports your recovery between sessions, your ability to sustain effort in longer workouts, and your overall health. Most people have never trained this way inside a program. Trust the pace.
The reason we include all five every week instead of focusing on one at a time is simple: you need all of them, all the time. Spending 6 weeks on only intervals then 6 weeks on only long steady work means you lose what you are not training. FLEX keeps everything moving forward together.
Pacing labels
Every conditioning piece has a pacing label that tells you the intended effort level:
- Forever: Easy, conversational, all-day pace. If you are breathing through your mouth consistently, slow down.
- Steady: The hardest pace you can hold for the entire piece without slowing down. Round 1 and the last round should look the same.
- Push: Hard and sustained. No built-in rest. You manage the effort across the full piece.
- Sprint: Hard in bursts. Recovery is built into the format. Each effort can be intense because rest follows.
Follow the pacing label. It is the most important instruction on the workout. For a full breakdown, see Conditioning Work: Pacing.
Weight selection for conditioning
Conditioning weights are different from performance weights. Choose a weight that lets you keep moving at the right pace with good form. When your workout includes a specific weight recommendation, use that. When it does not, see Conditioning Work: Weight Selection for ranges and guidelines.
Movement Patterns, Not Body Parts
FLEX does not program “chest day” or “leg day.” Instead, each day focuses on movement patterns that your body uses in real life:
- Knee dominant (squats, lunges) builds strong legs for everything from climbing stairs to playing with your kids.
- Hip dominant (deadlifts, hip thrusts) develops your posterior chain for lifting, jumping, and powerful movement.
- Horizontal push (bench press, push-ups) and vertical push (overhead press) build pressing strength and shoulder health.
- Horizontal pull (rows) and vertical pull (pull-ups) strengthen your back and improve posture.
Each training day emphasizes different patterns. Over the course of a week, every pattern gets trained. Over 6 weeks, every pattern gets stronger.
Two Tracks, Same Program
FLEX comes in two versions:
- FLEX Full Gym uses barbells, dumbbells, kettlebells, pull-up bars, machines (rower, bike, etc.), and boxes.
- FLEX Dumbbell uses only dumbbells and resistance bands. Everything from the Full Gym track is adapted so you get the same training effect with minimal equipment.
You can switch between tracks anytime in the app. Both tracks follow the same structure, the same progression, and the same conditioning system.
Common Questions
Does the program repeat the same 5 workouts for 6 weeks? Your strength exercises repeat. Your conditioning is completely different every day. You will not see the same conditioning workout twice in a block. 30 unique conditioning sessions per block.
What if I miss a day or a full week? Pick up where the program is. Do not try to go back and make up missed sessions. The block moves forward and so do you. One missed week does not undo the other five.
I feel like the weight is too light in Week 1. Good. That means you have room to grow. If Week 1 feels heavy, you have nowhere to go by Week 6. Start conservative and build.
The conditioning felt easy today. Is that right? Check the pacing label. If it said Forever, easy is correct. If it said Steady, it should feel controlled but not easy. If it said Push or Sprint and it felt easy, go heavier or faster next time.
Can I do extra cardio outside the program? Yes. FLEX gives you a strong conditioning foundation, but if you want additional aerobic work, add 1-2 sessions per week of easy walking, jogging, cycling, swimming, or rowing at a conversational pace (30-45 minutes). This complements the program without interfering with recovery.
Where do I go if I have more questions? The Help Center covers everything from app setup to exercise substitutions. The Facebook community group has 1,700+ members and coaches answering questions daily. Post in any language. Facebook translates automatically.
