The Impact of High-Intensity Interval Training (HIIT) On Polycystic Ovary Syndrome (PCOS) - A Narrative Review

The purpose of research. Polycystic ovary syndrome (PCOS) is the most common endocrine disorder among women of reproductive age, characterized by metabolic, hormonal, reproductive, and psychological disturbances. Its pathophysiology involves insulin resistance, hyperandrogenism, and chronic low-grade inflammation. This review evaluates the effects of high-intensity interval training (HIIT) on metabolic, hormonal, reproductive, and psychological outcomes in women with PCOS. Material and methods. A literature search was conducted in PubMed, Scopus, and Google Scholar for studies published between 2010 and 2025. Randomized controlled trials, cohort studies, and systematic reviews evaluating HIIT in women with PCOS were included and analyzed qualitatively. Results. HIIT improves insulin sensitivity, reduces body mass index, and favorably modifies lipid profiles. Reductions in testosterone levels and improvements in menstrual regularity were observed, although data on gonadotropins and SHBG remain inconclusive. HIIT also reduces depression, anxiety, and stress, enhancing quality of life. Conclusions. HIIT is a promising, safe, and effective adjunctive therapy for PCOS, benefiting metabolic, hormonal, reproductive, and psychological parameters. Further large-scale randomized trials are needed to confirm long-term effects and optimize exercise protocols.