The Effect of High Intensity Intermittent and Combined (Resistant and Endurance) Trainings on Some Anthropometric Indices and Aerobic Performance in Women with Polycystic Ovary Syndrome: A Randomized Controlled Clinical Trial Study

Modulation of hormonal, metabolic, inflammatory and oxidative stress biomarkers in women with polycystic ovary syndrome following combined (resistant and endurance) training: a randomized controlled trail

PURPOSE

Polycystic ovary syndrome (PCOS) is a frequent disorder among women. Exercise training has been known as an effective treatment for this disorder; however, there is small amount of evidence examining the optimal exercise programs. We evaluated the function of combined (COM) training on metabolic, hormonal parameters, and biomarkers of oxidative stress and inflammation in PCOS patients.

METHODS

This randomized controlled clinical trial was conducted on 30 women with PCOS divided (age: 23.8 ± 5.3 years, height:162.8 ± 4.9 cm, weight: 82.4 ± 9.7 kg, body mass index: 30.3 ± 3.9 kg/m2) into two groups to receive COM training intervention (n = 15) or control group (n = 15) for eight weeks. At the baseline and end-of-intervention, metabolic profiles including fasting plasma glucose, insulin, homeostatic model assessment for insulin resistance (HOMA-IR), quantitative insulin sensitivity check index (QUICKI), lipid profiles, testosterone, free androgen index (FAI), sex hormone binding globulin, anti-Müllerian hormone, malondialdehyde, total antioxidant capacity, and high Sensitive-C reactive protein were evaluated.

RESULTS

After eight-week intervention in training group, insulin (P < 0.001), HOMA-IR (P < 0.001), total cholesterol (P < 0.001), LDL-cholesterol (P < 0.001), total testosterone (P < 0.001), AMH ( P = 0.02),MDA (P = 0.04) and FAI (P < 0.001) were significantly decreased, while QUICKI (P = 0.002) was remarkably increased compared with the control group. Moreover, findings showed that there are no significant differences in other variables in the training group compared to the control group.

CONCLUSIONS

We concluded that combined training is an effective training protocol (50%-70% 1RM for strength training and 60%-70 THR for endurance training) for treatment of PCOS, although further studies are needed to reach comprehensive data regarding the design of exercise protocols with different intensity and volume for PCOS patients.

TRIAL REGISTRATION

Registered retrospectively in the Iranian Registry of Clinical Trials (IRCT20130812014333N143) on March 22, 2020. Access at https://en.irct.ir/trial/46295 .

Effects of eight-week high-intensity interval training on some metabolic, hormonal and cardiovascular indices in women with PCOS: a randomized controlled trail

BACKGROUND

Studies have revealed that high-intensity interval training (HIIT) has beneficial effect on hormonal, cardiovascular indices in women with polycystic ovary syndrome (PCOS). There, however, is still no comprehensive data on the type, intensity and duration of training for these women.

OBJECTIVE

The current study aimed to investigate the effects of high-intensity interval training (HIIT) on metabolic, hormonal and cardiovascular indices in women with PCOS compared to a control group.

METHODS

In a randomized controlled study, 28 patients (age: 23.8 ± 5.3 years, weight: 82.4 ± 9.7 kg, BMI: 30.33 ± 3.99 kg/m²) were divided into two groups including HIIT (n = 14) and the control (n = 14). The training protocol was performed with 100-110 maximum aerobic velocity (MAV), 4-6 sets, 4 laps, 3 sessions per week for eight weeks. Anthropometric indices, aerobic performance, insulin resistance and sensitivity, lipid profiles, testosterone, cortisol and hs-CRP were evaluated.

RESULTS

The HIIT intervention decreased BMI, waist to hip ratio (WHR), visceral fat, insulin, insulin resistance, low density lipoprotein (LDL), atherogenic index, cholesterol and cortisol (P < 0.05). All variables remained unchanged in the control group (P > 0.05). Except for VAI, FBG, HDL, TG and AIP, the rest of the variables in the training and control groups show a significant difference (P < 0.05).

CONCLUSION

The results of the present study indicate that eight weeks of HIIT has beneficial effects on anthropometric, insulin sensitivity, fat profile, and inflammatory and cardiovascular indices in PCOS patients. It seems that the intensity of HIIT (100-110 MAV) is a determining factor in creating optimal adaptations in PCOS patients.

TRAIL REGISTRATION

IRCT20130812014333N143. Registration date: 22/03/2020. URL: https://en.irct.ir/trial/46295 .