What if the biggest unlock for your customers’ progress isn’t more power, but smarter aerobic training? This was the theme of week four in the OPEX Methodology guidance and it hit hard. With a background in strength and physical therapy, I have always loved lifting, movement quality and problem solving. The gap was aerobic recipe and analysis, from zone 2 to zone 5. This week started to close that gap in a big way.
Because aerobic fitness matters for everyone
Carl simply put, every time you get up and move, you are using your aerobic energy system. That one line reframed how I think about training. Strength, power and speed matter, but most of real life is aerobic.
For many of my clients, the goal is not just a PR. It’s energy to play with the kids, confidence to travel without feeling frustrated, and stamina for a busy career. Aerobic capacity supports recovery between sessions, stabilizes daily energy and makes hard training feel easier when it counts.
Customers This helps more
I work with a mix of hybrid, in-person and remote and online-only clients. Some are chasing specific performance goals. Most are high-performing adults in their 30s, 40s and 50s, including other coaches and health professionals. They want to feel athletic again or maintain the athletic identity they’ve always had.
Travel came up a lot. Many customers love world travel and want the physical autonomy to explore all day without dragging. This is not a max deadlift problem. It’s an aerobic base problem.
Quick snapshot of who benefits
Client Group Primary Target How Aerobic Work Helps General Population Clients Lifestyle Energy, Health, Consistency Supports Recovery and Daily Movement High Performance in Midlife Maintain Vitality and Resilience Creates a Foundation for Sustainable Training Other Fitness or Health Professionals Professional Longevity and Personal Fitness Improves Program Reproducibility and Quality. focused customers Tolerate volume and sharpen top efforts Faster recovery and better pacing strategy
What clicked in week 4
OPEX describes aerobic training with continuous MAP, simple work and rest structures, RPE guidelines, and the pace or pace you should aim for at each interval level. The focus is on repeatability and breathing, not crushing yourself and hoping it makes you better.
Two parts stood out:
Clear intention for each interval length: Each interval has a purpose on the aerobic spectrum, from easy sustainable work to harder efforts that remain aerobic.
RPE guidance: A practical anchor that helps clients self-regulate so that work fits the target system and doesn’t drift into sprints.
This is the structure I was missing. Not complicated science for its own sake, just usable rules that lead to better results.
The simple rule that keeps intervals aerobic
Here is the concept that landed. If you’re training a 2-minute cardio interval, pace it like something you could hold for about 8 minutes, not like a 2-minute test. Go at a real 2 minute pace and you’ll end up at max effort. The recovery will need to be very long and the work will take away from the aerobic base you want to build.
This idea is a great workout potion:
Select the length of the interval.
Match the pace with a longer sustained effort.
Use RPE to maintain repeatability.
Take adequate rest to return with the same quality.
Stay in the aerobic lane, build the base and protect the session goal.
A quick example
Interval: 2 minutes of mixed circuit work (bike, rows or run)
Pace Intention: Move as if you could hold the same pace for 8 minutes
RPE: Smooth 6 to 7 out of 10, controlled breathing, repetitive
Result: The second and third intervals are similar to the first, which is the point
The magic is not in the tool or the machine. It is found in pacing, breathing and the ability to repeat without spikes.
Because this matters for recovery and everyday life
A large aerobic tank helps with almost everything:
Recover faster between sets and sessions.
You can train more often without feeling overwhelmed.
You handle real-life stress better because your body has a greater ability to move, walk, and stand for long stretches.
If the goal is to feel free in your body, to do what you want when you want for as long as you want, then aerobic fitness is the key layer. Power sits above her. Power and speed are above it.
How this changes my coaching approach
I plan to reinforce three parts of the process: assessment, prescription and development.
Assessment: Determine your current aerobic capacity and tolerance for repeated intervals. Monitor breathing, pacing and falling.
Recipe: Use continuous MAP, clear work and rest intervals, and RPE guidance to set the right stimulus. Match the length of the interval to the intent of the pace so it remains aerobic.
Advancement: Progress time, rate or density without loss of repeatability. Adjust only one variable at a time.
This structure scales well. Works for in-person sessions, hybrid plans, and online-only coaching. It gives customers confidence because they know exactly how each piece should feel.
Practical ways to build an aerobic base
These are simple, trainable moves that go along with what we’ve covered.
Anchor to RPE: Keep most aerobic intervals in the 6 to 7 range. Clients learn their own tools and stay away from garbage intensity.
Train repeated efforts: If the second race falls off a cliff, the first one was too hot. The goal is the same quality in all sets.
Use mixed functions: Bike, row, easy run or circuits with circular gears. Function is less important than intent.
Respect the intent of the space: Shorter intervals still need a steady pace if the goal is aerobic. Don’t sprint and call it capacity.
Breathe the rhythm: If the speech falls into single words immediately, relax. If the breathing is smooth and nasal to the parts, you are probably in the right place.
A simple pacing thought experiment
Ask, could I keep this pace for four times the work interval? If so, you’re likely in the aerobic zone for this workout. If not, you redline and turn it into a max test.
Coaching for longevity and joy
Several clients have said they want to be the healthiest 70-year-old they can be. They want to take that annual trip, hike to new cities, and feel present during the day, not off in the afternoon. That vision needs a solid engine, not just a big lifter or a fancy sprint. It takes consistency, aerobic repeatability and smart exposure to effort.
Exercise is medicine when the dose suits the individual. Aerobic training is a big part of the right dose for most people.
What’s next in The Mentorship
The next week shifts to intervals. Perfect timing, since aerobic intervals are a definite weak spot in my toolbox. I’m ready to tighten up the details, create better progressions, and sharpen my eye for pacing errors.
As I put this into practice, I expect cleaner sessions, better recovery, and fewer dead zones in programs. And yes, I plan to use the same structure to improve my own training. This is one of the best parts of continuing education. You grow as a coach and as an athlete at the same time.
How would I implement this with hybrid and online clients
See how it looks in different customer settings.
Personal hybrid: We will create recurring interval days in weekly patterns. I will cue RPE, breathing and pacing and then send out work sessions that reflect the intention.
Online only: I will write clear pacing notes and RPE goals. I will ask for simple feedback such as breath quality, speech test and tempo shift in sets.
Professionals with tight schedules: Short aerobic sessions with a clear structure. No fluff, simple controlled intervals to suit a busy day.
The thread in all cases is clarity. Tell clients how the project should feel, what it should look like from set to set, and how to know if they hit the target.
Little victories I look forward to seeing
Fewer early bursts in intervals
Better energy and mood everyday
More consistent training weeks without crash cycles
Stronger tolerance for mixed sessions involving lifting and circuit work
Customers learn their actual tools instead of guessing
Want to delve deeper into coach education?
OPEX is focused on building better coaches with real careers, not burnout. If you’re training and want structure you can use right away, explore the programs and tools below.
Final Thoughts
Week four reshaped how I view aerobic training. MAP continuity, RPE guidance, and sustainable pacing give me a clear path to building a bigger one aerobic base for each customer. It’s not about going harder. It’s about getting the right effort and then repeating it with quality. I’m excited to present it, learn from the results, and carry these lessons into next week’s work at intervals. If you’re interested in longevity, travel, or just feeling good, this is the stuff that makes it happen.
