Improving Reproductive Function in Women With Polycystic Ovary Syndrome With High-Intensity Interval Training (IMPROV-IT): A Two-Centre, Three-Armed Randomized Controlled Trial

Kiel, Ida Almenning; Lionett, Sofie; Jones, Helen; Parr, Evelyn B.; Røset, Maria Aurora; Salvesen, Øyvind; Hawley, John A.; Moholdt, Trine

doi:10.2139/ssrn.3750673

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“…Positive effects of HIIT interventions have been observed in various populations including clinical populations (Campbell et al, 2019;Lavin Perez et al, 2021). Interestingly, results of HIIT interventions concerning the improvement of reproductive functions have been observed in women (Kiel et al, 2020) and men (Hajizadeh et al, 2020) with infertility. Given the superiority of HIIT programs over moderateintensity continuous training (MICT) in various study groups, both in terms of benefits in metabolic changes and in affecting the psychological wellbeing of participants, pregnant women are poised to continue or begin participation in HIIT programs.…”

Section: Introductionmentioning

confidence: 99%

Changes in pain perception during pregnancy after one-time maximal physical exertion and an 8-week high-intensity interval training

Leźnicka,

Gasiorowska,

Pawlak

et al. 2023

Front. Physiol.

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Background: Pain, a subjective sensation, poses a great challenge to the human body as a stressor. There is empirical evidence that moderate to intense physical activity increases pain tolerance and this may be critical during pregnancy for optimal pregnancy, fetal development, and delivery. To the best of our knowledge, it is the first study examining the changes in pain perception in pregnant women after a maximal progressive exercise test and after 8 weeks of high-intensity interval training (HIIT).Methods: Thirty-five women with uncomplicated singleton pregnancies between 13 and 28 weeks of gestation participated in the study. The HIIT intervention was developed in accordance with the recommendations and available data on HIIT during pregnancy. The maximal progressive cardiopulmonary exercise test was performed on a cycle ergometer with an electronically controlled load. Pressure pain threshold and pressure pain tolerance were measured with an algometer.Results: We found significant effects of the maximal exercise test and high-intensity interval training, such that the pregnant women had higher pain tolerance after the maximal exercise test than before and after the high-intensity interval training than the baseline.Conclusion: Our results suggest that post-exercise analgesia may be important in pregnant women and that high-intensity interval training appears to be beneficial for pregnant women to improve their pain tolerance while being obstetrically safe. Increased pain tolerance before labor could lead to better management of pain during labor and in the postpartum and lactation periods. Increasing pregnant women’s awareness of this issue can improve their wellbeing and provide more comfort during labor.

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Section: Introductionmentioning

confidence: 99%