Exercise for PMOS. Built Around Your Biology.

PMOS (formerly PCOS). The international consensus renamed the condition in May 2026 however the clinical guidance did not change.

You did the running. You did the spin classes. You did every 45-minute cardio session the last three apps prescribed. You lost maybe a pound, gained it back, and felt worse at the end of every week.

You don’t have a motivation problem and it probably wasn't the cardio either. The internet though. It’s going to probably tell you otherwise.

The thing you're going to read everywhere, and why we won't repeat it

"[Cardio] may actually be making you gain weight, not lose it, because it's raising your cortisol, which makes you store more fat."

That's from a PMOS community discussion in 2026, and versions of it are on dozens of fitness sites. It sounds like it explains everything you've experienced. It doesn't hold up.

PMOS does involve altered cortisol handling but the well-replicated finding is that the body clears cortisol faster, while circulating levels stay normal. Cushing's syndrome, the actual cortisol-excess condition, has to be ruled out before a PMOS diagnosis can be made at all. And when researchers ran an eight-week high-intensity interval training trial in women with PMOS and measured cortisol directly, it went down! Those women also saw improvements in insulin resistance, visceral fat, and testosterone.

No study has ever shown that exercise-induced cortisol prevents fat loss in women with PMOS. The claim is an inference chain nobody has tested, and the international guideline for your condition recommends vigorous aerobic exercise without mentioning cortisol once.

We could sell you the cortisol story. It converts well. We're not going to, because the first thing we'd be doing is making you afraid of something that helps you.

What actually went wrong

Nobody told you the dose or that it was proven under supervision.

The 2023 International Guideline is specific: 150–300 minutes a week of moderate activity, or 75–150 minutes vigorous, plus muscle-strengthening on two non-consecutive days. That's it. That's the prescription.

Nearly every trial behind those numbers was run with a supervisor in the room. In reviewed PMOS exercise research, adherence to supervised training runs around 76 percent. Home-based, unsupervised, it runs around 43 percent. When you’re tired and alone working out at home and struggling to stay with it. That hasn’t been tested but we would like to see what that looks like for you.

Nobody told you about the 48-hour rule.

There is exactly one PMOS-specific training principle in the published guidance, and it is not about which exercise to do. Exercise and Sports Science Australia's 2024 position statement recommends that women with PMOS exercise daily, or at minimum every second day because of how insulin sensitivity behaves after a session.

Not harder. Not different. More often. Which is a consistency problem, not a programming problem.

There isn't a best type of training for PMOS.

The guideline says so outright: no evidence that any one type or intensity of exercise beats another on any outcome they looked at. The whole head-to-head comparison base is five trials and 216 women.

So anyone telling you strength is the answer, or intervals are the answer, or that cardio is sabotaging you, is filling that gap with confidence they haven't earned. The recent network analyses actually put resistance training near the bottom for insulin resistance and testosterone. We're not going to tell you that either. Same thin evidence, pointed the other way.

Cycle-syncing was never going to work here.

Cycle-syncing needs a cycle. With PMOS there often isn't one to sync to, and no guideline on this condition mentions cycle-phase training anywhere.

How Salerna programs for PMOS

1. The guideline dose, actually delivered.
150–300 minutes of moderate work or 75–150 vigorous, plus two strength days. There's no PMOS-specific prescription to invent, so we don't invent one. We build what the guideline asks for and then try to make it survive your week.

2. Every 48 hours.
This is the one thing in the literature that's specific to PMOS, so it's what we design around. Your programming aims for movement daily or every other day. On a bad day you get something small instead of nothing.

3. Both kinds of training.
Aerobic work has the strongest metabolic evidence here. Resistance training builds lean mass, raises SHBG and lowers free androgen index. You get both.

4. It changes so you don't stop.
Your daily check-in reads sleep, energy, soreness and stress. A hard day gets a smaller session. Consistency looks like the thing that's actually binding in this condition, and a session you do beats a session you bail on. That's most of what the engine is for.

5. No streaks, no scale.
The documented barriers here are weight stigma, body image, depression, fatigue, low self-efficacy. A product that punishes you for a missed day is aimed at the wrong thing. We track strength and consistency. Weigh yourself if you want to.

6. A clinician wrote the rules.
Our advisory board authors the condition logic and can switch a rule off. When your session changes, you can see which input changed it.

What we won't tell you

That we can fix your insulin resistance. We can't. We apply training rules informed by the fact that insulin resistance is common in PMOS, and that's a much smaller claim.

That exercise will regulate your cycle, clear your skin, or drop your androgens by some number. Those trials are small, short, and they disagree with each other.

That an app can do what a coach in the room does. Nobody has shown that. Including us. It's what we're building toward and what we're measuring, and we'll tell you what we find.

What we can tell you is what the guideline asks of you, why it asks, and what changed in today's session.. Join the Beta Now →

The clinical backing

The programming on this page follows the 2023 International Evidence-based Guideline for the Assessment and Management of Polycystic Ovary Syndrome (Teede et al.) and the 2024 Exercise and Sports Science Australia position statement on exercise in PCOS (Sabag et al.). Adherence figures are drawn from a 2020 systematic review of treatment adherence in PCOS. Comparative-modality claims reflect Patten et al. (2023) and subsequent network meta-analyses.

Our clinical advisory board reviews condition-specific content on a rolling basis.

Salerna supports training in the presence of PMOS. We don't treat the condition itself, and nothing here is medical advice.