Research

Hormonal

Moderate-intensity aerobic or resistance exercise improves insulin resistance and ovulation rates in women with PCOS, independent of significant weight loss.

For women with PCOS, engaging in moderate-intensity exercise (like brisk walking or cycling) 3-5 times a week for 30-45 minutes can significantly improve insulin sensitivity and restore regular ovulation. This benefit occurs regardless of whether you lose weight, so consistency is more important than intensity or weight loss goals.

ModerateSupportsMEDIUM confidence
The most consistent improvements included improved ovulation, reduced IR (9–30%) and weight loss (4.5–10%). Improvements were not dependant on the type of exercise, frequency or length of exercise sessions.
Cheryce L. Harrison et al. · Human Reproduction Update · 2010

Why this rating

Based on a systematic review of 8 studies (5 RCTs, 3 cohort), but with considerable heterogeneity in design and lack of meta-analysis.

Source

Exercise therapy in polycystic ovary syndrome: a systematic review

Cheryce L. Harrison et al. · Human Reproduction Update · 2010

DOI 10.1093/humupd/dmq045

systematic_review · n=421Cited 262×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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