The 10-Second Rule — Why Everything Should Match


Today's question:

"How much variability can I have in my conditioning while keeping the same stimulus?"

The Block Training Revelation

In the Triphasic 1 and 2 books, it is broken down by energy systems:

Under 10 seconds: Alactic system

15-30 seconds: Lactate system

Longer: Aerobic system

Mix them in the same session, and you're stealing from yourself.

The 90-Set Workout

Here's the story that blew everyone's mind:

Cal's athletes did 90 sets in one session.

That is not a typo, yes 90 sets.

Every single set was 10 seconds or less. When other elite coaches asked what he did for conditioning, his response was simple: "Huh?"

His heart rate monitor said it was an unbelievable workout load. Everything was rated a 9 out of 10. The aerobic work was there, but it was specific to 10-second high work capacity.

Why Mixing Systems Backfires

Do 10-second lifting sets, then go do hard aerobic work? You just lost some of the benefits of those 10-second adaptations.

Everything seems to adapt better when you don't mix energy systems.

The Practical Application

If your lifting session is built around 10-second sets:

Conditioning should be 10 seconds on, 50 seconds off

Run it for 4-6 minutes (about one aerobic set)

Keep everything in the same energy system

The Israeli Discovery

Research showed you can do lactate work after alactic work and still get results. But aerobic after specific work? That's where you lose adaptation quality.

Your New Rule

Pick an energy system for the day.

Train it completely. Let everything in your body — heart, lungs, nervous system — adapt to that specific demand.

Stop trying to train everything at once. Start training everything better.

And if you're training yourself and not coaching athletes — same deal. Pick your energy system and commit to it for the session.

We break down all three energy systems in detail in TP2 — including specific work-to-rest ratios, how to match conditioning to your lifting blocks, and nearly a dozen conditioning methods you can plug in today.

https://triphasic2.com<< order here

All the best,

Mike and Cal

PS - Here is what Hayan had to say:

"My favorite part of the book is the guidelines that it lays out for how to train properly, especially for the aerobic phase which is extremely important for adapting to stimulus faster than your competition." -- Hayan Aziz

https://triphasic2.com<< order here

Coach Cal Dietz, U of MN Dr Mike T Nelson Triphasic Training II: 14 High-Performance Methods to Unlock Elite Athletic Development - out NOW

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Triphasic II

Triphasic Training 2 is an applied performance book showing coaches how to build strength, speed, and power by targeting the eccentric, isometric, and concentric phases of training.

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