There is strong scientific evidence that prenatal physical activity of moderate-to-high in-tensity is a prerequisite of the proper course of pregnancy, childbirth and fetus development. How-ever, to date little data have been available on high intensity interval training (HIIT) performed during pregnancy. Following the PRISMA guidelines, this systematic review aimed at: first, to characterize HIIT protocols used or planned to be implemented during pregnancy; second, to determine their training effects on participant’s health and obstetric outcomes. We included nine original works and three clinical trials in the analysis. The HIIT protocols substantially differed in terms of the training components (type, intensity, frequency, duration and progression) and the structure of intervals (intensity and time of workout and recovery intervals). Our most important finding is that performing HIIT during pregnancy is safe in terms of obstetric outcomes and well tolerated by pregnant participants, while providing them with the enjoyment of exercise. HIIT interventions either led to an improvement in selected maternal and fetal health parameters or had no impact. No adverse effects were observed. Pregnant women may benefit from HIIT programs in the same way as other populations. Evidence-based recommendations on prenatal HIIT should be developed and promoted worldwide among pregnant women, exercise and health professionals.

Learning the correct technique of performing pelvic floor muscle (PFM) exercises is a very important factor influencing the effectiveness of this muscle group training. Correctly performed PFM contractions are involved in the urinary continence mechanism. In this study, we tested the hypothesis that a six-week high-low impact aerobics program, supported by one EMG biofeedback session and pelvic floor muscle training, improves the technique of PFM contraction. Participants were 42 active nulliparous women (age 22 ± 2 years, mean ± SD), randomly allocated into intervention (n = 18) and control (n = 24) groups. We analyzed the technique of PFM contractions, taking into account the order in which selected muscle groups were activated, so called ‘firing order’. In both groups, we assessed the PFM contraction technique using surface electromyography (sEMG) and intravaginal probes, before and after six weeks of intervention. The intervention group received one biofeedback session on how to properly contract PFM and afterwards participated in a high-low impact aerobics program supplemented by PFM training. The control group did not receive any intervention. In the pre-test, 67% of the intervention group activated PFM first in order in short, quick contractions. After six weeks of training, this task was correctly performed by 100% of this group (p = 0.04). The proper performance of PFM short contraction in the control group was 75% and 67%, before and after intervention, respectively. In the intervention group we also observed statistically significant improvement in the PFM contraction technique in 10-s contractions. The presented intervention was beneficial for the improvement of PFM contraction. High–low impact aerobics, supplemented by one EMG biofeedback session and pelvic floor muscle training can be recommended for active nulliparous women.

Background: We aimed to test the hypothesis that high-impact aerobics programme, combined with pelvic floor muscle training does not impair pelvic floor muscle function in young active women. Methods: A randomized control trial was conducted among active nulliparous, sport university students (age 23 ± 3 years, mean ± SD). Experimental group (n = 13) attended high-impact aerobics programme, supplemented by pelvic floor muscle training with one biofeedback session, for 6 weeks. The control group (n = 19) did not get any intervention. Before and after the experiment, we assessed pelvic floor muscle function in both groups with surface electromyography using vaginal probes. In both groups, we assessed the participants’ quality of life related to pelvic floor functions with the Incontinence Impact Questionnaires. Results: We recorded no impairments in neuromuscular activity of pelvic floor muscles and in quality of life in women regularly performing high-impact aerobics. What is even more positive, after 6 weeks, experimental group presented better skills both in contracting and relaxing their pelvic floor muscles, although the pre-post intervention EMG change was not statistically significant. All participants maintained good quality of life related to pelvic floor functions. Conclusions: High-impact aerobics, supplemented by pelvic floor muscle training can be recommended for active nulliparas.

Background: The aim of this review was to analyze training interventions used and their effectiveness in improving pelvic floor muscle function related to urinary continence in postmenopausal women. We then characterized the recommended pelvic floor muscle training programs used in experimental studies based on four training components: frequency, intensity, duration, and type of pelvic floor muscle exercise. Methods: For this purpose, we conducted a literature review of works published up until the end of 2024, available in the Web of Science, PubMed, MEDLINE, and SPORTDiscus with Full Text databases. We used the keywords “pelvic floor muscle”, “training”, and “postmenopausal women”. Initially, we identified 205 articles published between 1997 and 2024. Then, based on specific criteria, we qualified 15 for analysis. Results: Thirteen studies included only PFMT, while three of them combined PFMT with other physical activity. In two studies, training was conducted in the form of a virtual video game using a pressure platform. We have noted that researchers most often use a 1 h pad test, digital palpation, and surface electromyography to assess the function of pelvic floor muscles. In improving pelvic floor muscle function related to urinary incontinence, 14 out of the 15 analyzed studies showed improvement. In only eight of the fifteen articles, researchers characterized all components of the implemented PFMT that enable full replication of the training intervention. In four of the studies, only one of the required components, namely intensity, was missing. The recommended number of training sessions was 2 to 7 per week, on average 3 ± 2 (M ± SD). Training interventions lasted from 2 to 24 weeks, on average 10 ± 6 weeks. Conclusions: Regardless of the chosen form of training intervention, PFMT is an effective method in improving the function of pelvic floor muscles in postmenopausal women.

Background: The aim of this study was to assess the effect of a single session of EMG biofeedback in a group of postmenopausal women on improving technique in pelvic floor muscle (PFM) contractions (exercises). Methods: Sixty-two women aged 60 to 85 years (69 ± 4; mean ± SD) participated in the study. We assessed the technique of PFM exercises via surface electromyography (EMG) using a vaginal probe. A single assessment sequence consisted of 11 exercises involving the conscious contraction of the PFM, during which the order of activation for selected muscles was determined. We then awarded scores for exercise technique on a scale from 0 to 4, where 4 represented the best technique and 0 represented no activation of PFMs. In the second assessment, we used a biofeedback method to teach PFM exercise technique. Results: In total, 32% (n = 20) of the participants were unable to correctly perform the first PFM contraction, scoring 0.9 ± 0.79. After a single EMG biofeedback session, these women received 1.7 ± 1.08 scores (p = 0.003). In the tenth exercise, there was also a statistically significant improvement between the first (baseline) and second assessment (1.7 ± 1.34 and 2.15 ± 1.09, respectively; p = 0.037). For the remaining exercises, the results were not statistically significant, but we observed a positive trend of change. Conclusions: The use of a single EMG biofeedback session is an effective method of improving technique in PFM exercises in a group of women who initially performed them incorrectly.