In short:
- Regular exercise improves insulin sensitivity and helps lower androgen levels in PCOS.
- Both aerobic training and strength training are effective for PCOS — the best results come from combining the two.
- Losing just 5–10% of body weight can significantly improve the menstrual cycle and ovulation.
- Exercise is no substitute for medical treatment, but it is an evidence-based and important part of managing PCOS as a whole.
Polycystic ovary syndrome (PCOS) is one of the most common hormonal disorders in women of reproductive age, affecting an estimated 5–15% of women worldwide. Exercise for PCOS is one of the most effective evidence-based non-drug interventions, helping to improve insulin sensitivity, balance hormones and ease symptoms. In this guide, we look at what kind of movement suits women with PCOS and what the science says about it.
How does exercise affect insulin sensitivity and hormonal balance in PCOS?
One of the central mechanisms in PCOS is insulin resistance, which is estimated to occur in 50–70% of women with PCOS (Harrison et al., 2011). High insulin levels stimulate androgen production in the ovaries, which in turn worsens PCOS symptoms — acne, excess hair growth and menstrual cycle disorders.
Exercise improves insulin sensitivity in several ways: working muscles take up glucose partly without insulin, an increase in muscle mass raises basal metabolic rate, and regular physical activity reduces markers of chronic inflammation. A systematic review found that aerobic training reduced insulin resistance and testosterone levels in women with PCOS even without significant weight loss (Moran et al., 2011). For more on this, see our article Testosterone and exercise, which explains how movement affects androgen levels.
What type of exercise suits women with PCOS best?
Science doesn’t offer a single universal answer — both aerobic training and strength training are effective, but in different ways.
Aerobic training (walking, running, cycling, swimming) improves cardiovascular health and raises insulin sensitivity. Fat loss and exercise is a particularly important topic in PCOS, because even a 5–10% reduction in body weight can significantly improve ovulation and the menstrual cycle (Palomba et al., 2008).
Strength training increases muscle mass, improves glucose metabolism and raises basal metabolic rate. In a pilot study by Almenning et al. (2015), both HIIT and strength training improved insulin sensitivity and hormonal markers in women with PCOS compared with a control group.
Functional and combined training is an excellent choice for those who want a well-rounded approach. Our article What is functional training? explains how engaging several muscle groups at once improves both physical performance and metabolism — for women with PCOS, that is a double benefit.
HIIT (high-intensity interval training) is time-efficient and, according to studies, at least as effective as traditional aerobic training for improving insulin sensitivity. Plyometric training and other explosive exercises may also suit those who tolerate higher intensity well and whose joints are healthy.
How much and how often should a woman with PCOS exercise?
The Estonian Health Board follows the WHO recommendation: for adults, at least 150–300 minutes of moderate-intensity aerobic activity per week or 75–150 minutes of vigorous exercise, plus muscle-strengthening activities at least twice a week.
The scientific literature has suggested the following volume for women with PCOS:
- Aerobic training: 3–5 times a week, 30–60 minutes per session, at moderate to high intensity (60–80% of maximum heart rate)
- Strength training: 2–3 times a week, large muscle groups, 8–15 repetitions per set
- HIIT: 2–3 times a week, short intense intervals (20–40 seconds) alternating with active rest
It’s important to start gradually and listen to your body. Overtraining can raise cortisol levels, which are often already higher in women with PCOS, and paradoxically worsen hormonal imbalance.
Can exercise ease PCOS symptoms in the long term?
The evidence is clear: regular movement eases PCOS symptoms through several mechanisms (Harrison et al., 2011):
- Reduced insulin resistance → fewer androgens in the ovaries
- Healthier body weight → improved ovulation and menstrual regularity
- Lower inflammation markers → better overall health and metabolic profile
- Psychological benefits → PCOS is linked to an increased risk of depression and anxiety; regular exercise improves mood and self-esteem
That said, exercise is no substitute for medical treatment. For women with PCOS, it is important to consult a gynecologist and, if necessary, an endocrinologist to build a comprehensive treatment plan in which movement is integrated as an evidence-based and powerful supporting component.
References
- Harrison CL, Lombard CB, Moran LJ, Teede HJ. (2011). Exercise therapy in polycystic ovary syndrome: a systematic review. Hum Reprod Update. 17(2):171–83. PMID: 21169345
- Moran LJ, Hutchison SK, Norman RJ, Teede HJ. (2011). Lifestyle changes in women with polycystic ovary syndrome. Cochrane Database Syst Rev. (2):CD007506. PMID: 21491388
- Palomba S, Giallauria F, Falbo A, et al. (2008). Structured exercise training programme versus hypocaloric hyperproteic diet in obese polycystic ovary syndrome patients with anovulatory infertility: a 24-week pilot study. Hum Reprod. 23(3):642–50. PMID: 18093861
- Almenning I, Rieber-Mohn A, Lundgren KM, et al. (2015). Effects of High Intensity Interval Training and Strength Training on Metabolic, Cardiovascular and Hormonal Outcomes in Women with Polycystic Ovary Syndrome: A Pilot Study. PLoS One. 10(9):e0138793. PMID: 26305796
Frequently asked questions
What is the best training for PCOS?
The best results come from combining aerobic training with strength training. Aerobic training improves insulin sensitivity and supports weight management, while strength training builds muscle mass and improves metabolism. HIIT is a good alternative for those who have less time.
Does training help normalize hormone levels in PCOS?
Yes, research shows that regular training reduces insulin resistance, which in turn lowers the level of androgens produced in the ovaries. The effect is noticeable within just a few weeks, especially when training is combined with healthy nutrition habits.
How often should a woman with PCOS train?
The recommended minimum is 150 minutes of moderate-intensity aerobic activity per week (WHO/Estonian Health Board), spread over 3–5 sessions. It is also beneficial to do strength training 2–3 times per week. Start gradually and increase the training load over time.
Should women with PCOS avoid certain types of training?
No type of training is strictly off-limits with PCOS. However, you should avoid overtraining, as it raises cortisol levels and can make symptoms worse. High-intensity training (HIIT, plyometrics) should be done with sufficient recovery time.
Does training help you get pregnant with PCOS?
Training can indirectly support fertility by improving insulin sensitivity and helping to normalize body weight, both of which are linked to improved ovulation. However, if you are having trouble conceiving, you should definitely see a doctor — training is a supportive measure, not a primary treatment.
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