Effect of an abdominal hypopressive technique programme on pelvic floor muscle tone and urinary incontinence in women: a randomised crossover trial

What Is Known from the Existing Literature about Hypopressive Exercise? A PAGER-Compliant Scoping Review

Introduction: Hypopressive exercise (HE) can be viewed as a mind-body activity, characterized by the integration of breath control and stretching postures. Proponents of HE claim that this type of training can offer potential therapeutic or health benefits. To date, there is no existing comprehensive published overview on HE. This scoping review aims to map and summarize the current literature reporting data on HE and identify key knowledge gaps and future research directions. Methods: This review considered studies that report on the immediate, short-, or long-term practice of HE regardless of condition, sex, age, and/or level of practice or physical condition. Any context or setting was considered for inclusion. This review was performed in accordance with the methodological framework proposed by the Joanna Briggs Institute and by Arksey and O'Malley. MEDLINE, CINAHL, SPORTDiscus, Scopus, and Web of Science were searched from inception up to July 2023. Literature was mapped following the Patterns-Advances-Gaps-Evidence for Practice Recommendations framework to identify patterns and inform practice. Results: In total, 87 studies were identified that reported on the following themes: (1) therapeutic application of a short- or long-term HE programs (n = 56); (2) physiologic and physical responsiveness to a short- or long-term HE programs (n = 22); (3) psychologic and behavioral response to a short-term HE program (n = 14); and (4) acute or immediate physiological responses (n = 21). Literature gaps included poor methodological design, incomplete reporting of intervention, lack of male participants, and exploration of muscle groups distinct from the pelvic floor and abdominal muscles. Discussion: There is a need for high-quality randomized controlled trials, adherence to reporting guidelines on exercise, and the use of active control groups to verify clinical significance, the dose response, and health applications of HE.

Effects of hypopressive exercises on pelvic floor and abdominal muscles in adult women: A systematic review of randomized clinical trials

INTRODUCTION

Hypopressive exercises (HE) are postural and breathing exercises that activate deep muscles in the abdomen and pelvic floor. Despite this, there is still no consensus in the literature on its real effectiveness. The objective was to analyze the effects of HE on the abdominal and pelvic floor muscles in women with or without dysfunctions in these regions.

METHODS

This is a systematic review of randomized clinical trials found in the PEDro, PubMed, Cochrane, LILACS, and Embase databases. We include studies that evaluate the effects of HE (with or without other techniques) on the pelvic floor and abdominal region for 8 weeks or more, in women over 18 years old, with or without dysfunction in these regions, with the presence of a control group (active or passive).

RESULTS

HE were effective in improving strength, tone, and reducing symptoms of pelvic floor dysfunctions, in magnitude less than (in two studies) or equal (in one study) to the pelvic floor muscle training (PFMT). When HE were performed with PFMT in the same group, no additional benefits were found. Only one study evaluated abdominal muscles activation, where HE were effective in improving postural control and activation of the transversus abdominis muscle.

CONCLUSIONS

The HE presented positive results to the evaluated parameters. However, the information is still preliminary and scarce. There are methodological divergences regarding the execution, follow-up and standardization of the method, which could affect the results. According to the existing information, HE cannot yet be reliably indicated for the treatment of the pelvic floor, despite pointing out relevant results in some studies. More randomized clinical trials and long-term studies are needed to analyze the effects of HE not only for pelvic floor, but also for other regions, such as abdominal muscles and related dysfunctions.

The effects of an 8-week hypopressive exercise training program on urinary incontinence and pelvic floor muscle activation: A randomized controlled trial

BACKGROUND

Pelvic floor dysfunction and urinary incontinence are two of the most frequent gynecological problems, and pelvic floor muscle training is recommended as a first-line treatment, with new approaches such as hypopressive exercises. This study aimed to analyze the efficacy of an 8-week supervised training program of hypopressive exercises on pelvic floor muscle strength and urinary incontinence symptomatology.

DESIGN

Blinded randomized controlled trial.

SETTINGS

Women with pelvic floor dysfunction and urinary incontinence symptoms, aged 18-60 years.

PARTICIPANTS

A total of 117 participants were randomly allocated to the hypopressive exercises group (n = 62) or a control group that received no intervention (n = 55) and completed the study.

MAIN OUTCOME MEASURES

Clinical and sociodemographic data were collected, as well as pelvic floor muscle strength (using the Modified Oxford Scale); the genital prolapse symptoms, colorectal symptoms, and urinary symptoms (with the Pelvic Floor Distress Inventory [PFDI-20]); the impact of pelvic floor disorders (PFD) on women's lives (with the Pelvic Floor Impact Questionnaire [PFIQ-7]); and the severity of urinary incontinence symptoms (using the International Consultation on Incontinence Questionnaire [ICIQ]).

RESULTS

The results showed an improvement in the hypopressive group in the pelvic floor muscle strength F (1117) = 89.514, p < 0.001, a significantly lower score for the PFIQ7 total score, t (112) = 28.895, p < 0.001 and FPDI20 t (112) = 7.037, p < 0.001 as well as an improvement in ICIQ-SF values after 8 weeks of intervention in comparison with the control group.

CONCLUSIONS

After performing an 8-week of hipopressive exercises intervention, a decrease in pelvic floor disorders associated symptoms can be observed. In addition, pelvic floor muscle contractility is improved and a decrease in severity and symptoms associated with urinary incontinence has been reported.

Effects of hypopressive exercises on post-partum abdominal diastasis, trunk circumference, and mechanical properties of abdominopelvic tissues: a case series

BACKGROUND

Abdominal diastasis (AD) is highly prevalent at post-partum. Although several conservative approaches have been proposed, an effective and protocolized treatment is lacking for this condition.

OBJECTIVE

To identify modifications of inter-rectus abdominis distance (IRAD), trunk circumferences and mechanical properties of the AD, transversus abdominis and the pelvic floor (PF) muscles, after the application of hypopressive exercises (HE) and at a two-month follow-up in postpartum AD.

METHODS

Twelve volunteers with post-partum AD followed a four-week (three times a week) tailored program of HE. The main outcome was the IRAD, assessed at four specific supraumbilical points (3, 6, 9, and 12 cm). Abdominal circumference and respiratory expansion were measured at three different locations (axillar, xiphoid, and umbilical), and the mechanical properties of abdomino-pelvic tissues were also assessed using tonometry (MyotonPRO). Four evaluations were performed for all outcomes: at baseline, post-intervention, at a 1-month follow-up, and at a 2-month follow-up.

RESULTS

The IRAD of participants was reduced (p < .05), furthermore, some participants displayed no AD after the intervention period. In addition, the abdominal circumference increased, mainly at follow-up, whereas the thoracic respiratory expansion decreased a median of 2 cm. The tension and stiffness of the LA decreased, when assessed at 3 and 6 cm supraumbilical. Finally, the tension and elasticity of TA/IO and of the PF, and also the elasticity of the PF decreased after the intervention period. No complaints were identified in relation to the HE program or assessments.

CONCLUSION

A program of HE showed positive results for the reduction of post-partum AD. Different study designs should be performed to better explain the effects of HE for AD.

The Impact of Hypopressive Abdominal Exercise on Linea Alba Morphology in Women Who Are Postpartum: A Short-Term Cross-Sectional Study

OBJECTIVE

The purpose of this study was to determine the acute effect of an abdominal hypopressive exercise (AHE) on linea alba morphology among women who are primiparous and to compare this effect with that of other common abdominal exercise modalities.

METHODS

A cross-sectional study of 46 women 3 months after first delivery was conducted. B-mode ultrasound imaging of the interrectus distance (IRD) and linea alba distortion was performed 2 cm below (I-point) and above (S-point) the umbilicus and at the mid-point between the umbilicus and xiphoid process (X-point). Images were recorded at rest and during an AHE performed in a supine position, a semi curl-up (SCU), an abdominal drawing-in maneuver (ADIM), and a SCU performed after an initial ADIM (ADIM+SCU).

RESULTS

The SCU exercise narrowed the IRD at the X- and S-points. Compared with SCU, AHE and ADIM widened the IRD at the S- and X-points. No significant differences were found when comparing the IRD at rest, during AHE and during ADIM, but AHE tended to narrow I-point IRD more than ADIM but to widen S-point IRD more than ADIM+SCU. No participant showed linea alba distortion during the AHE or ADIM. When compared, SCU increased the occurrence of distortion with respect to AHE and ADIM. The isolated hypopressive posture did not change the IRD or linea alba distortion.

CONCLUSION

Among women who were postpartum, AHE seemed to narrow IRD below the umbilicus compared with ADIM without either of these 2 modalities generating linea alba distortion, as SCU or ADIM+SCU does. Thus, although no significant differences were found when comparing the IRD at rest and during AHE, the AHE could improve the tensile response of the linea alba without increasing the IRD.

IMPACT

This is believed to be the first study to describe linea alba changes during AHE in women who are postpartum. AHE and ADIM seem to show different effects on infraumbilical IRD. The lack of distortion suggests that linea alba may undergo tensile loading at all levels.

What Influences Women to Adhere to Pelvic Floor Exercises after Physiotherapy Treatment? A Qualitative Study for Individualized Pelvic Health Care

Conservative treatment of pelvic floor dysfunction (PFD) includes therapeutic exercise for pelvic floor muscle (PFM) training or other complementary exercise modalities, such as hypopressive exercises. However, the long-term effectiveness of the conservative treatment depends on a patient's adherence to the exercises and the integration of professional health advice into their daily life. The objective of this study was to establish the adherence experience of women with diagnosed PFD in home-based exercises after an intensive face-to-face physiotherapy treatment. A qualitative study from an interpretive paradigm was developed. Semi-structured individual and group interviews were performed 6 months after finishing individual physiotherapy treatment. The interviews were recorded, fully transcribed and analyzed thematically by creating categories. Thirty-one women were interviewed. The women reported that their adherence to home PFM exercises depended on the exercise program itself, its efficacy, their personal experiences with the exercises, intrinsic factors such as self-awareness or beliefs, and extrinsic factors, such as professional or instrumental feedback. Thus, therapeutic adherence could be more likely with effective physiotherapy programs that include mutually agreed home exercises and simple movements women can build into their daily lives. Improving awareness and knowledge of the pelvic region and the importance of PFM treatment as well as consideration for potential worsening of PFD will also encourage women to adhere to the exercises.

The Main Role of Diaphragm Muscle as a Mechanism of Hypopressive Abdominal Gymnastics to Improve Non-Specific Chronic Low Back Pain: A Randomized Controlled Trial

BACKGROUND

Chronic low back pain (LBP) has been stated as one of the main health concerns in the XXI century due to its high incidence.

OBJECTIVE

The objective of this study was to determine the effects of an 8-week program of hypopressive abdominal gymnastics (HAG) on inspiratory muscle strength, diaphragm thickness, disability and pain in patients suffering from non-specific chronic LBP.

METHODS

A total of 40 patients with chronic LBP were randomly divided into two groups. The experimental group carried out an 8-week supervised program of HAG (two sessions/week), whereas the control group did not receive any treatment. Outcomes were measured before and after the intervention, comprising diaphragm thickness during relaxed respiratory activity, maximal inspiratory pressure (PImax), pain intensity (NRS), pressure pain threshold and responses to four questionnaires: Physical Activity Questionnaire (PAQ), Roland-Morris Disability Questionnaire (RMQ), Central Sensitization Inventory (CSI) and Tampa Scale of Kinesiophobia-11 Items (TSK-11).

RESULTS

Statistically significant differences (p < 0.05) were observed for greater thickness of the left and right hemi-diaphragms at inspiration, as well as higher PImax and decreased NRS, CSI and RMQ scores in the intervention group. After treatment, the increases in the thickness of the left and right hemi-diaphragms at inspiration and PImax, as well as the decrease in the NRS and RMQ scores, were only predicted by the proposed intervention (R2 = 0.118-0.552).

CONCLUSIONS

An 8-week HAG intervention seemed to show beneficial effects and predicted an increase in diaphragm thickness and strength during inspiration, as well as a reduction in pain intensity, central sensitization and disability, in patients suffering from chronic non-specific LBP with respect to non-intervention.

Postural Sensorimotor Control on Anorectal Pressures and Pelvic Floor Muscle Tone and Strength: Effects of a Single 5P® LOGSURF Session. A Cross-Sectional Preliminary Study

Pelvic floor dysfunction (PFD) is a functional condition present most frequently in women. Despite pelvic floor muscle training being considered by the International Continence Society (ICS) as the first-line treatment in uncomplicated urinary incontinence, other more comprehensive postural methods as 5P^® LOGSURF have emerged. This preliminary cross-sectional study explores the effects of a single 5P^® LOGSURF session on pelvic floor muscle (PFM) tone and strength (MVC), resting anal tone, intrarectal pressure, and deep abdominal muscles activation. Thirty women were included (11 without PFD and 19 with PFD). Primary outcome measures were PFM tone, PFM MVC and resting anal tone and secondary measures outcomes were intrarectal pressure and deep abdominal activation. All outcome measures were collected before, throughout and after a single 30′ 5P^® LOGSURF session. The findings from this study suggest that PFM tone (PFD group: p = 0.09, d = 0.72; non-PFD group: p = 0.003, d = 0.49) and PFM MVC (PFD group: p = 0.016; non-PFD group: p = 0.005) decreased in both groups after a single 5P^® LOGSURF session, with a medium effect size for women with PFD. Contrarily, deep abdominal muscle MVC increased (PFD group: p < 0.001; non-PFD group: p = 0.03). Intrarectal pressure and resting anal tone decreased in both groups throughout the session. These results suggest that 5P^® LOGSURF method may be interesting if is performed by women with mild symptoms of PFD or healthy women to achieve a decrease in PFM tone in women who manifested pain to intracavitary techniques or practices. Further research with higher sample sizes and long-term are necessary for generalizing.

The Rolf Method of Structural Integration and Pelvic Floor Muscle Facilitation: Preliminary Results of a Randomized, Interventional Study

The management of pelvic floor dysfunctions might need to be based on a comprehensive neuro-musculoskeletal therapy such as The Rolf Method of Structural Integration (SI). The aim of the study was to evaluate the pelvic floor muscle (PFM) after the tenth session of SI by using surface electromyography (sEMG). This was a randomized, interventional study. Thirty-three healthy women were randomly assigned to the experimental (SI) or control group. The outcome measures included PFM bioelectrical activity, assessed using sEMG and endovaginal probes. An intervention in the SI group included 60 min of SI once a week, and teaching on how to contract and relax PFMs; in the control group, only the teaching was carried out. In the SI group, a significant difference was found between the PFM sEMG activity during “pre-baseline rest” (p < 0.014) and that during “rest after tonic contraction” (p = 0.021) in the supine position, as were significant increases in “phasic contraction” in the standing position (p = 0.014). In the intergroup comparison, higher PFM sEMG activity after the intervention “phasic contraction” (p = 0.037) and “pre-baseline rest” (p = 0.028) was observed in the SI group. The SI intervention significantly changes some functional bioelectrical activity of PFMs, providing a basis for further research on a new approach to PFM facilitation, particularly in clinical populations.

Effectiveness of Hypopressive Exercises in Women with Pelvic Floor Dysfunction: A Randomised Controlled Trial

Hypopressive exercises have emerged as a conservative treatment option for pelvic floor dysfunction (PFD). The aim of this study was to compare the effects of an eight-week hypopressive exercise program to those of an individualized pelvic floor muscle (PFM) training (PFMT) program, and to a combination of both immediately after treatment and at follow-up assessments at 3, 6 and 12 months later. The study was a prospective, single-centre, assessor-blinded, randomised controlled trial. Ninety-four women with PFD were assigned to PFMT (n = 32), hypopressive exercises (n = 31) or both (n = 31). All programs included the same educational component, and instruction about lifestyle interventions and the knack manoeuvre. Primary outcomes were the Pelvic Floor Distress Inventory Short Form (PFDI-20); the Pelvic Floor Impact Questionnaire Short Form (PFIQ-7); PFM strength (manometry and dynamometry) and pelvic floor basal tone (dynamometry). There were no statistically significant differences between groups at baseline, nor after the intervention. Overall, women reduced their symptoms (24.41-30.5 on the PFDI-20); improved their quality of life (14.78-21.49 on the PFIQ-7), improved their PFM strength (8.61-9.32 cmH2O on manometry; 106.2-247.7 g on dynamometry), and increased their pelvic floor basal tone (1.8-22.9 g on dynamometry). These data suggest that individual PFMT, hypopressive exercises and a combination of both interventions significantly reduce PFD symptoms, enhance quality of life, and improve PFM strength and basal tone in women with PFD, both in the short and longer term.