PCOS, Exercise and Fertility: What the Research Shows
By Zsofia Jamieson, co-founder of The Fertility Class and certified Aviva Method instructor, who has taught fertility-focused movement for 15 years and conceived with the method after years of PCOS.
Last updated October 2026.
In short: Yes. Exercise is one of the most effective tools for managing PCOS, and consistency matters far more than intensity. Regular, moderate movement improves insulin sensitivity, the benefit with the strongest research behind it, and can help cycles become more regular. High-intensity training has not been shown to work better, and very frequent vigorous exercise has been linked to ovulation problems in some women.
I recognized my own PCOS before any doctor confirmed it. Three or four cycles a year, cystic acne, thinning hair, weight that would not shift. Once I connected the dots, the diagnosis made sense. What did not make sense was the advice that came with it.
Take the pill. That was more or less it.
Nobody talked about which kinds of movement support reproductive hormones in PCOS, or why the wrong kind can make things worse. That distinction is not a small detail. It is the thing I most wish someone had told me at the time.
Fifteen years and hundreds of women with PCOS later, this is what I know.
Does exercise help with PCOS fertility?
Yes, and the evidence is more consistent than most people realize.
At the core of PCOS, a condition now also referred to as PMOS, a proposed name that better reflects its metabolic drivers, is hormonal disruption rooted in insulin resistance. When insulin runs high, the ovaries produce excess androgens. Those androgens disrupt follicle development and suppress ovulation. That is the loop.
This is where exercise breaks into it. A 2020 systematic review in the Journal of Functional Morphology and Kinesiology found that the most reliable benefit of exercise for women with PCOS is on insulin: aerobic, interval, combined and yoga-based programs frequently lowered fasting insulin and insulin resistance, while effects on testosterone were more mixed. That insulin finding matters. High insulin is one of the signals that drives the ovaries to overproduce androgens, so improving insulin sensitivity addresses PCOS close to its source.
What kind of exercise is best for PCOS?
Moderate intensity, not high intensity, and the difference matters more than most exercise advice acknowledges.
Harder is not better. A 2021 systematic review and meta-analysis in Frontiers in Physiology compared high-intensity interval training with moderate, steady exercise in women with PCOS. High-intensity training offered no clear advantage for fitness, and only moderate exercise lowered fasting insulin. The authors call for larger trials, but the evidence so far points one way: steady, sustainable movement serves PCOS well, and pushing harder does not add more.
The Fertility Class is low-impact by design. Not because low-impact is better for general fitness, but because when the goal is healthy reproductive hormones, intensity is a variable that genuinely matters. Our sequences work the deep pelvic muscles, hip rotators and abdominal core, and are designed to support pelvic circulation alongside the hormonal benefits.
Does high-intensity exercise make PCOS worse?
It can, and most women are never told why, or what to do instead.
PCOS already places the body under chronic, low-grade hormonal stress. Layering frequent high-intensity training on top adds more strain to a system that is struggling to regulate. Research published in Human Reproduction found that vigorous exercise at high frequency was associated with a greater risk of ovulatory disorders in women of reproductive age.
If you train hard and often and your cycles are not improving, this may be part of the picture. The answer is not to stop moving. It is to change the kind of movement you do.
How does movement affect PCOS hormones?
Three things happen when you move consistently and at the right intensity.
Insulin sensitivity improves. Less circulating insulin means less androgenic signaling to the ovaries, fewer disrupted follicles and better conditions for ovulation.
Androgens can come down. Several studies report lower free and total testosterone after structured exercise in women with PCOS, though results vary between programs. Part of this follows from the insulin effect, and part relates to changes in how the body binds and processes androgens.
Pelvic blood flow increases. Reduced ovarian circulation has been documented in PCOS and linked to impaired follicle development. The sequences in The Fertility Class engage the pelvic muscles specifically to support blood flow to the ovaries and uterus. In a 2023 study in the Journal of Clinical Medicine, Kovács and colleagues used Doppler ultrasound to measure uterine artery blood flow before and after Aviva Method exercise and found significant changes, evidence that these sequences have a real effect on circulation. Read more in The Importance of Pelvic Blood Flow for Fertility.
Can you regulate your cycle naturally with PCOS?
Many women do. I will not promise a timeline, because the honest answer is that it varies with how elevated your androgens are, how significant your insulin resistance is and how consistently you practice.
What I can say with confidence is that many women with PCOS are able to regulate their cycles without medication, and movement is one of the best-supported ways to get there. The 2023 International Evidence-based Guideline for PCOS, the leading international clinical guidance on the condition, recommends regular physical activity for every woman with PCOS, whatever her weight.
It takes time and it takes consistency. But it is not wishful thinking.
Does PCOS affect egg quality?
Yes, and it is worth understanding before an IVF cycle.
Women with PCOS typically have more eggs available than average, with higher follicle counts and higher AMH, but the androgen-heavy environment affects how those eggs develop. Fertilization rates and embryo quality can be lower than the follicle count would suggest.
The same movement that supports cycle regulation also improves the environment those eggs develop in: lower androgens, better insulin sensitivity and stronger pelvic circulation. I will not overstate the direct evidence, because studies on exercise and egg quality in women with PCOS going through IVF are still limited. But the mechanisms are real, and they are the same ones that appear across the wider research on fertility and movement. For more, read How to Improve Egg Quality.
Why we built The Fertility Class
I came to this work through my own experience: years of irregular cycles, the skin and hair changes, and metabolic symptoms that no one pulled into a clear picture until I did it myself. When I found targeted movement that addressed the hormonal drivers rather than only managing symptoms, things changed in a way I had not thought possible. That is what I have passed on to women for the past 15 years.
The Fertility Class is an on-demand online program of 30-minute movement classes focused entirely on the reproductive and endocrine systems. Members in more than 30 countries practice at home, on their own schedule.
It is designed to sit alongside the medical care you already receive, never to replace it.
Sources
- Richards et al., Frontiers in Physiology, 2021: high- versus moderate-intensity exercise in PCOS
- Patten et al., Frontiers in Physiology, 2020: exercise interventions in PCOS
- Shele et al., Journal of Functional Morphology and Kinesiology, 2020: a systematic review of the effects of exercise on hormones in women with PCOS
- Physical activity, vigorous exercise and fertility
- Kovács, Hegyi and Szőke, Journal of Clinical Medicine, 2023: Aviva Method exercise and uterine artery blood flow
More research on our Studies page
