Zachary Ermert

MET Build

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Welcome to MET Build— the first official program of my Minimum Effective Training (MET) Method. If you’ve got a busy schedule like I do, but you’re still serious about building long-term, sustainable muscle—this program is made for you. The concept is simple: Train with intent. Train hard. And do only what’s proven to work. This program is completely evidence-based—every single exercise is backed by high-quality literature—meta-analyses, systematic reviews, and randomized controlled trials—so you’ll never wonder why you’re doing something. I’ve also included citations for every movement. The structure? A 4-day Upper/Lower A-B split. Two Upper Body sessions, two Lower Body sessions. That’s it. Each workout lasts just 45 to 60 minutes, and you can spread them out however you want throughout the week—whatever fits your schedule. You’ll be performing just two sets per muscle group per session, in the 6 to 10 rep range. This is exactly what the research shows to be the minimum effective dose for stimulating strength and hypertrophy. Because when you train with purpose, less is more. Progressive overload is the goal. Your job is to get stronger on each lift over time. Limiting variety helps minimize distractions, maximize efficiency, and makes tracking and execution easy. I also highly recommend logging your lifts. Use a journal, a notes app, an Excel sheet—whatever helps you stay consistent and keep pushing forward week after week. Rest between sets should be a minimum of 2 minutes. That’s what the current research shows is optimal for maintaining performance across sets and maximizing strength adaptations. Intensity is key. You’ll be training close to failure—zero to one RIR. Every set matters. Every rep counts. You’ll also get access to demo videos of me performing every single movement—so you can follow along confidently and execute with precision. So with that said—welcome to MET Build. I’m hyped to have you on board. Let’s crush it.

Goal:
Gain Muscle
16 weeks program 45-60 mins
Goal:
Gain Muscle
16 weeks program 45-60 mins

Workouts

Upper A
Upper A
5.0
Chest, All Levels, Abs & Core, Strength, Upper Body, Bodybuilding, Back, Gym, Arms
Lower A
Lower A
5.0
Gym, All Levels, Strength, Legs, Bodybuilding, Lower Body
Upper B
Upper B
5.0
Gym, Strength, Bodybuilding, Upper Body, All Levels, Chest, Abs & Core, Back, Arms
Lower B
Lower B
5.0
Gym, Legs, Strength, Lower Body, All Levels, Bodybuilding
Love this app!!! Every workout is challenging and I've had amazing results
Carrie
Beautiful, user friendly app. truly enjoying having quick access to workouts. makes reaching my goal of daily movement much easier.
Laura
Clear, straightforward, focused workouts that are enjoyable and effective
Jess

App Features

Reminders
Set workout reminders to stay on track!
Tracking
Track your progress and share it to Instagram
Notes & Logging
Track your weights, time, and reps. Take notes to capture your thoughts when working out
Streaks
Make sure you stay on track with your goals
Favorites
Save your favorite workouts with one tap
Stream Anywhere
Stream to your TV and laptop using Apple TV, Chromecast, Roku, or Fire TV.
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/images/landing/features/reminders.pngframe
Reminders
Set workout reminders to stay on track!
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About Zachary Ermert

Online personal trainer

▫️Evidence-Based Fitness Coach ▫️Student Doctor of Physical Therapy ▫️Former D1 Collegiate Tennis Player

Frequently asked questions

What makes Playbook different? How do I know it will work for me?
If you haven’t had success with other workout apps in the past, you may be skeptical about ours. But we’re here to tell you, we guarantee you’ll get the results you want with Playbook. Why? We have hundreds of experts who are ready to train you. We don’t give you one-off programs of PDF documents with no assistance. Our creators add new programs (with interactive, explanatory videos) on a daily basis. Our content is new, fresh, and ever-changing to keep you motivated and ready to work! Plus, if you need help,creators are always here for you. You can message them directly if you have any questions, feedback, or simply want to share your success.
I'm a beginner, is Playbook for me?
No matter where you are in your fitness journey, Playbook can help you succeed. Workouts and programs posted in the app are for any level of fitness. Plus, trainers walk you through all exercises with easy-to-follow videos and simple written instructions. This means you’ll be able to do all the moves easily, accurately, and safely.
Do I need to purchase equipment?
It depends on the workout! Playbook has a lot of workouts that require no equipment. We also have workouts that require minimal equipment (like dumbbells or a yoga mat) and some that require weight-lifting machines. There’s something for everyone — regardless of equipment — to help you get in shape.

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