The Conjugate Edge #10: OIMAs—The Hedge at the Edge
How Oscillating Isometric Muscle Actions Hedge Against Reactive Strength Volatility
Welcome to Installment #10 of The Conjugate Edge. Each month, we publish one essay designed to help programmers in strength and clinical settings step off the linear path and onto our conjugate strategy—one that propagates athletes from Point A→ Point B. This is the programmers go-to source for the most up-to-date thinking on Conjugate—not as a method, not as a system, but as a living programming strategy that treats and trains concurrently in real time. Want to join the conversation? Become a paid subscriber to access comments and our private chat. Want to go deeper? Check out our online course: The Art & Science of Programming.
Reactive Strength is volatile by nature. It’s fast, elastic, and entirely dependent on an athlete’s ability to absorb and dampen force and redirect it without losing time or tissue integrity in the output. That volatility and tissue violence isn’t a flaw—it’s where the performance emerges from.
But every coach and clinician managing a high-performance athlete is holding a position inside that volatility, whether they’d call it that or not.
We made this case in full previously in Understanding Training Risk (Part 1) and Part 2. The Level of Competition (sporting environment) behaves like the market easily exposed to tail risk. Injuries are Black Swans—not random, yet not normally distributed, but predictable once you understand where the fat tails sit. Typically, we have been told that this risk is managed with diversification—however, diversification alone never truly protects you from risk, as Mark Spitznagel puts it, “diversification is a dilution of risk, not a solution to it”. This is where hedging comes into play. To an investor, hedging is a strategy to offset potential losses in a portfolio as a result of market volatility by taking opposite positions in related investments. The investor must balance a know fixed cost (the hedge) that is entirely controllable with an unknown, potentially massive cost that digs into returns and is always uncontrollable. The programmer is faced with a similar situation. How to control the controllables in the management of athletes in high performance so that the market doesn’t control them. To a programmer, this involves adding inputs into the program that offset the potential for catastrophic events (injuries).
The fix we named in Internal Training as a Hedge is simple: internal training and treatment—simultaneous work that stimulates capacity in the biological structures themselves, is what lets an athlete take on higher-risk, higher-return external training, practice and play sessions, allowing them to cultivate deeper gains within the portfolio of performance.
This Conjugate Edge is about the single best internal hedge available for Reactive Strength.
Where the Volatility Actually Comes From
We’ve written before about why this volatility exists in the first place. Reactive Strength depends on the matching of tissue resonance—how connective tissue oscillates under resistance (biology)—to the regulation of that oscillation by the neuromuscular system (neurology). When the neurology and biology are tuned to each other—synced, energy is stored and transmitted efficiently. When they’re not, energy is dissipated, reflected, or absorbed catastrophically. That’s the mechanism we broke down in The Damping Effect: A Programmable Quality of Biological Point B Reactive Strength. If you haven’t read that piece, read it before this one—it names the variable this piece is going to show you how to program directly.
Name the real source of the volatility plainly: a neurological-biological asymmetry. The nervous system—specifically the neural network of absolute strength and the connective tissues are two systems adapting on different timelines, by different rules, and the gap between them is where the risk lives. Understanding Reactive Strength as special strength exposes that gap. But understanding doesn’t close the gap. Taking specific programming action—both clinically and in the weight room, closes that gap.
The Belief: The Asymmetry Has to Be Programmed For
Absolute’s position, plainly: the neurological-biological asymmetry underneath Reactive Strength has to be directly programmed for—synced, not managed. It doesn’t resolve as a byproduct of more reactive work, more plyometrics, more volume, or simply resting. You close the gap by stimulating the neurology and biology in conjugation, in the same input or exercise. Anything short of that leaves the neurological-biological gap in place—or widens it…
Rest Is Not Synchronization—The NBA Proved It Last June
You don’t have to look far to see what happens when you manage this asymmetry instead of syncing it. The CNS recovers in 24 to 72 hours; connective tissue doesn’t—it detrains without mechanical loading over that same window. Rest a player and both systems deload together, but only one comes back: neurology on schedule, biology still degrading. That’s a wider asymmetry, not a smaller one—more volatility, not less.
We watched it play out at the highest stakes the sport has in NBA’s Load Mismanagement & Reactive Strength Problem: rest managed the asymmetry instead of syncing it, and it spiked into a tail event in Game 7 of last year’s Finals.
Isometrics have historically come in two flavors—Holding (HIMA) and Pushing (PIMA). Neither creates the vibrational stimulus connective tissue actually responds to. Jim Seitzer and Westside Barbell had been sitting on a piece of that puzzle for nearly twenty years, in the “shaky bar” experiments that became BandBell—but as Seitzer himself put it introducing Oscillatory Isometric Muscle Actions: A New Class of Isometrics, the actual relationship between tissue and band resonance driving those results “was brought to light by Absolute Sport Science,” which is where OIMA, as its own class of isometric, comes from.
Oscillatory Isometric Muscle Action (OIMA)—definition (Absolute Sport Science): A HIMA hold into which an oscillating resistance is introduced—and as that oscillatory load builds, the nervous system is coached to press into it, dampening the oscillating tissue. The hold transitions into a press + dampen, and that transition is the chaotic, high-frequency stimulus that signals connective tissue self-organization in real time.
The Hedge: What an OIMA Actually Does
This isn’t another isometric variation competing for a slot next to a the box squat. It’s the sync the NBA case above never got: rest recovers one half of the asymmetry and lets the other degrade, but an OIMA stimulates, loads both the top down and bottom up element concurrently, at once, in the same rep, and constrains them to answer together—in conjugation. That’s not a metaphor—it’s the literal demand of an OIMA. The adaptation isn’t “get stronger” in the static-hold sense; it’s teaching the athlete to output force where damping is expressed, the same quality that separates controlled resonance from the catastrophic oscillation of a tendon injury.
This is why the OIMA should be the number-one programmed isometric in a high-performance setting—not because other isometrics are wrong, but because none of them force neurology and biology to solve the same real-time problem together. That makes it internal training/treatment in the strictest sense: a static, clinical-weight room input/exercise that develops capacity in the biological structures itself, so the athlete can take the higher-risk, higher-return work—the sprinting, cutting, jumping—without the tail event. It’s the internal hedge.
Where This Shows Up in the Spine
The same asymmetry shows up in the spine, with its own damping problem: pendulum damping across the entire posterior chain, not just a single joint. This is exactly the gap our Reverse Hyper Program was built to close—built on how Louie Simmons started with the reverse hyper, not where the special exercise ended up in most gyms as a lower-back accessory machine. Check out the program here.
Free readers have the full case now: why the asymmetry exists, why it has to be synced instead of managed, and why the OIMA is the internal hedge that does it. Paid subscribers get the specifics on when and how confidently to reach for it.
Indication: Why OIMAs Is Almost Always the Right Programming Call
