Pelvic Floor Anatomy and Function

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Questions and Answers

In the context of peripartum considerations, which birthing position is LEAST associated with perineal tearing due to its impact on sacral flexibility?

  • Supine (correct)
  • Lateral side lying
  • Long sitting (correct)
  • Kneeling

Which of the following statements BEST encapsulates the functional role of manual therapy, specifically trigger point releases, in addressing interstitial cystitis?

  • Enhances detrusor muscle contractility via direct myofascial manipulation.
  • Increases bladder capacity by inducing viscoelastic changes in the urothelium.
  • Decreases symptoms of urinary urgency and frequency via pelvic floor muscle relaxation. (correct)
  • Reduces bladder wall inflammation through targeted cytokine modulation.

Advanced pelvic floor muscle down training is MOST indicated in which bowel dysfunction, predicated on its capacity to modulate anorectal dynamics?

  • Fecal urgency
  • Fecal incontinence
  • Incomplete defecation (correct)
  • Constipation (correct)

In the management of stress urinary incontinence, what is the underlying principle of 'the knack technique' concerning intra-abdominal pressure?

<p>To preemptively increase intra-urethral pressure to counteract increases in intra-abdominal pressure. (B)</p> Signup and view all the answers

Concerning the anatomical determinants of pelvic floor function, which statement MOST accurately reflects the influence of the coccygeus and levator ani muscle groups?

<p>They provide primary support for pelvic organs and contribute to fecal continence (A)</p> Signup and view all the answers

Among the nerves arising from the sacral and coccygeal plexuses, which BEST explains the somatosensory and motor innervation of the perineum, crucial for voluntary control of micturition and defecation?

<p>Pudendal nerve (B)</p> Signup and view all the answers

In assessing pelvic floor dysfunction, which aspect of a patient's voiding habits is MOST comprehensively captured by a bladder and bowel diary?

<p>Temporal relationship between fluid intake, urge, leakage, and activity. (B)</p> Signup and view all the answers

Given the multifaceted etiology of dyspareunia, which physical therapy intervention demonstrates the GREATEST specificity in addressing pain associated with elevated pelvic floor muscle tone?

<p>Paradoxical relaxation techniques (A)</p> Signup and view all the answers

Considering the impact of peripartum pubic symphysis diastasis on functional mobility, which intervention directly addresses the biomechanical instability caused by the condition?

<p>Pelvic stabilization exercises (A)</p> Signup and view all the answers

Among the options, which most comprehensively characterizes the impact of the ischiocavernosus muscle on sexual function?

<p>Regulating vasocongestion in erectile tissues (C)</p> Signup and view all the answers

In peripartum care, which factor presents the HIGHEST correlation to increased risk of third or fourth-degree perineal tears, extending into the anal sphincter complex?

<p>Prolonged second stage of labor (C)</p> Signup and view all the answers

When counseling a pregnant patient about perineal massage to minimize tearing risk, what specific anatomical landmark serves as the primary focus for massage at the '6 o'clock' position?

<p>Anus (A)</p> Signup and view all the answers

Considering the diagnostic criteria for overactive bladder (OAB), what frequency of micturition per 24-hour period, beyond normal physiological variations, meets the threshold for clinical concern?

<p>Greater than five to eight times or more frequently than every 2 hours (B)</p> Signup and view all the answers

Given the complex interplay of hormonal and metabolic factors in Polycystic Ovary Syndrome (PCOS), which clinical manifestation is LEAST directly attributable to androgen excess?

<p>Ovarian cyst formation (A)</p> Signup and view all the answers

Given the multifactorial etiology of nocturia, encompassing both physiological and behavioral elements, which lifestyle modification demonstrates the MOST specific impact on nocturnal urine production?

<p>Minimizing liquid consumption within two hours of bedtime (C)</p> Signup and view all the answers

In the context of constipation management, which component addresses the underlying pelvic floor muscle imbalances that potentiate incomplete evacuation?

<p>Pelvic floor muscle down training. (C)</p> Signup and view all the answers

Considering the diagnostic complexities of Bladder Pain Syndrome/Interstitial Cystitis (BPS/IC), which symptom clusters, beyond pain, MOST strongly suggest its presence relative to other lower urinary tract conditions?

<p>Pain relieved specifically by bladder emptying, coupled with urinary urgency and increased frequency. (A)</p> Signup and view all the answers

Which parameter, as assessed during a digital vaginal examination, provides the MOST DIRECT indication of levator ani muscle integrity and its contribution to pelvic organ support?

<p>Palpable muscle contractility and resistance to digital pressure (C)</p> Signup and view all the answers

Given the prevalence and impact of fecal incontinence, which constellation of factors warrants prioritization in the initial assessment of affected individuals?

<p>Medication usage, inflammatory bowel conditions, and integrity of anal sphincter muscles. (C)</p> Signup and view all the answers

Considering the prevalence and multifaceted impact of endometriosis, which clinical presentation necessitates focused investigation, due to its potential for diagnostic ambiguity with other pelvic pain conditions?

<p>Cyclical symptoms of abdominal pain, painful bowel movements and significant clotting during the menstrual cycle bleeding or spotting between menstrual cycle, infertility, constipation bloating and nausea. (C)</p> Signup and view all the answers

In a patient presenting with recurrent stress urinary incontinence, which assessment parameter provides the MOST direct insight into the efficacy of pelvic floor muscle training?

<p>Pelvic floor muscle strength, endurance, power, and coordination (A)</p> Signup and view all the answers

According to the content, what percentage range represents the typical lifespan prevalence of urinary incontinence among people assigned female at birth?

<p>25-45% (D)</p> Signup and view all the answers

In assessing an individual with urinary incontinence, which co-morbid psychological condition exhibits the STRONGEST association, potentially exacerbating both the perception and severity of urinary symptoms?

<p>Anxiety (D)</p> Signup and view all the answers

Given the established link between lifestyle factors and bladder function, which dietary modification would MOST directly address bladder irritability in a patient experiencing urge urinary incontinence?

<p>Eliminating bladder irritants (coffee, sparkling water, alcohol, acidic juices) (A)</p> Signup and view all the answers

What is the MOST accurate definition of Functional Urinary Incontinence?

<p>Involuntary urine leakage when someone recognizes the urge to pee but is unable to make it to the bathroom in time to use the toilet (B)</p> Signup and view all the answers

What is/are the KEY differences between the general structure of the male and female bony pelvis?

<p>Male: deep true pelvis, narrow and tapering; Female: shallow true pelvis, wide and cylindrical (B)</p> Signup and view all the answers

Given the multifaceted contributions of the pelvic floor to biomechanical stability, what best describesits influence on spinal alignment and load transfer?

<p>Modulating intra-abdominal pressure to optimize force transmission between the trunk and lower extremities. (D)</p> Signup and view all the answers

Considering the prevalence and clinical relevance of diastasis recti abdominis (DRA) in the postpartum population, what intervention technique is MOST directly designed to normalize the inter-recti distance and restore abdominal wall integrity?

<p>Transversus abdominis activation exercises with bracing (D)</p> Signup and view all the answers

In the context of pelvic organ prolapse (POP) management, what BEST describes the rationale for incorporating lifestyle modifications, such as optimizing bowel habits and weight management, into a comprehensive treatment plan?

<p>To reduce intra-abdominal pressure, thus minimizing downward strain on pelvic support structures (B)</p> Signup and view all the answers

Concerning the multifaceted parameters captured within the NIH-Chronic Prostatitis Symptom Index (CPSI), which element contributes MOST DISTINCTIVELY to differentiating between inflammatory and non-inflammatory subtypes of chronic pelvic pain syndrome?

<p>Anatomical terminology for the genitals (D)</p> Signup and view all the answers

Considering the clinical heterogeneity of vaginismus, which best describes the pathophysiological mechanisms involved?

<p>Involuntary contraction of the muscles of the outer third of the vagina (A)</p> Signup and view all the answers

In the treatment of overactive pelvic floor, which of the following options could reduce the involuntary closing of the holes?

<p>Psychological, emotional, cognitive, and behavioral factors (C)</p> Signup and view all the answers

While a constellation of variables influences post-void residual volume (PVR), which among the following factors exerts the MOST DIRECT influence on the detrusor muscle contractility?

<p>Underlying neurological conditions (D)</p> Signup and view all the answers

Considering the clinical application of outcome measures in pelvic health, what statement MOST accurately reflects the purpose of Patient Specific Functional Scale (PSFS)?

<p>Measuring the perceived impact of symptoms on patient-defined activities. (A)</p> Signup and view all the answers

Following a comprehensive evaluation, a patient is diagnosed with levator ani syndrome. Which of the following signs or symptoms is MOST consistent with the diagnosis?

<p>Inability or significant difficulty with vaginal penetration (A), Pain during and after bowel movements with no anal fissure (B)</p> Signup and view all the answers

Considering the impact of age-related changes on lower urinary tract function, which age-related decline contributes MOST directly to an increased risk of nocturia?

<p>Reduced bladder compliance and capacity (B)</p> Signup and view all the answers

Which of the following muscles is NOT part of the superficial muscle layer?

<p>Deep transverse perineal (C)</p> Signup and view all the answers

Flashcards

Pubic Symphysis Diastasis

Excessive widening of pubic symphysis; >10 mm.

Diastasis Recti

Increased distance between the rectus abdominis muscles at the midline caused by weakness in the anterior abdominal wall.

Perineal tear

A tear in the tissue between the anus and the vaginal opening.

Interstitial Cystitis: Treatment

Manual physical therapy, specifically trigger point releases in the vaginal canal over the pelvic floor muscles, can decrease symptoms of interstitial cystitis, urinary urgency symptoms, and urinary frequency symptoms.

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Episiotomy

A cut made by a health care professional into the perineum and vaginal wall to make more space for baby to exit the vaginal canal.

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Overactive pelvic floor

Pelvic floor muscles do not relax, or may even contract when relaxation is functionally needed

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Dyspareunia

Pain with sexual intercourse.

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Vaginismus

Involuntary contraction of the muscles of the outer third of the vagina

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Endometriosis

Tissue that is similar to the uterine lining grows outside of the uterus.

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Bladder Pain Syndrome/Interstitial Cystitis (IC)

Chronic, painful bladder condition.

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Polycystic Ovarian Syndrome (PCOS)

Problems in the ovaries. Related to hormonal imbalances and metabolism problems.

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Stress Urinary Incontinence

Involuntary urine leakage during moments of increased intra-abdominal pressure

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Urge Urinary Incontinence

Involuntary urine leakage accompanied by or immediately preceded by urge to urinate

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Mixed Urinary Incontinence

Combination of both stress and urge urinary incontinence; urine leakage with or without a strong urge to urinate/increased intra-abdominal pressure

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Functional Urinary Incontinence

When someone recognizes the urge to pee but is unable to make it to the bathroom in time to use the toilet

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Overactive Bladder

Urinating > 5-8 times in a 24-hour period or more frequently than every 2 hours

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Nocturia

Urinating > 0-1x per night

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Fecal Incontinence

Inability to control bowel movements, resulting in fecal leakage

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Constipation

Infrequent bowel movements; less than 3 times per week

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Fecal Urgency

Sudden need to rush to the bathroom to empty bowels

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Incomplete Defecation

Inability to fully empty bowels

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Stability (Pelvic Floor Function)

The pelvic floor influences the stability of the entire spine and pelvis.

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Posture (Pelvic Floor Function)

The pelvic floor plays a role in posture

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Support of Pelvic Organs (Pelvic Floor Function)

The pelvic floor muscles are responsible for supporting the pelvic organs.

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Sphincteric (Pelvic Floor Function)

The pelvic floor keeps the urethra and anus closed to keep urine and feces in when desired, and open to eliminate urine and feces when desired.

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Sexual (Pelvic Floor Function)

The pelvic floor plays a big role in sexual function. The ischiocavernosus muscle pumps blood to the clitoris or penis during arousal to support orgasm.

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Sump Pump (Pelvic Floor Function)

The pelvis is a sump pump with many vascular and lymphatic structures.

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Breathing (Pelvic Floor Function)

The pelvic floor has seven main functions. The relationship between the diaphragm and the pelvic floor is similar to a piston; when inhaling, the diaphragm drops down, and so does the pelvic floor.

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Study Notes

  • Pelvic floor has seven main roles including stability, posture, support, sphincteric, sexual, sump pump and breathing functions.
  • Pelvic girdle bony anatomy includes key differences between male and female pelvises:

Pelvic Girdle Anatomy - Male

  • Thick and heavy bone structure
  • Deep pelvis depth
  • Heart-shaped pelvic inlet
  • Narrow pelvic structure
  • Comparatively smaller pelvic outlet
  • Narrow pubic arch (<70°)

Pelvic Girdle Anatomy - Female

  • Thin and light bone structure
  • Shallow pelvis depth
  • Oval and rounded pelvic inlet
  • Wide pelvic structure
  • Comparatively large pelvic outlet
  • Wide pubic arch (>80°)

Pelvic Floor Muscle Layers

  • Superficial layer includes superficial transverse perineal, bulbospongiosus, ischiocavernosus, and external anal sphincter muscles

Superficial Layer Functions

  • Urinary continence
  • Supports the vagina and penis
  • Attachment support
  • Sexual functionality

Intermediate Layer

  • Deep transverse perineal
  • External urethral sphincter
  • Sphincter urethrovaginalis
  • Compressor urethra

Intermediate Layer Functions

  • Sexual function
  • Arousal
  • Erection
  • Orgasm
  • Ejaculation
  • Fecal continence
  • Defecation

Deep Layer

  • Coccygeus and ischiococcygeus
  • Levator ani muscle group (pubococcygeus, puborectalis, iliococcygeus)
  • Lifts the pelvic floor
  • Supports pelvic organs
  • Resists intra-abdominal pressure
  • Tail wagging ability
  • Sexual function

Nerves of Sacral and Coccygeal Plexuses

  • Sciatic: L4, L5, S1, S2, S3, flexors/muscles of foot and leg
  • Superior Gluteal: L4, L5, S1, gluteus medius, minimus, tensor fasciae latae muscles
  • Inferior Gluteal: L5, S1, S2, gluteus maximus muscle
  • Nerve to piriformis: S1, S2, Piriformis muscle
  • Nerve to quadratus femoris and inferior gemellus: L4, L5, S1, quadratus femoris and inferior gemellus muscles
  • Nerve to obturator internus and superior gemellus: L5, S1, S2, obturator internus and superior gemellus muscles
  • Pudendal: S2, S3, S4, structures in the perineum, sensory in genitalia
  • Nerves to levator ani and coccygeus: S3, S4, levator ani and coccygeus muscles
  • Posterior femoral cutaneous: S2, S3, cutaneous branches to buttocks
  • Perforating cutaneous: S2, S3, cutaneous branches to medial part of buttocks
  • Pelvic splanchnic: S2, S3, S4, pelvic viscera

Urinary Conditions Definitions

  • Stress Urinary Incontinence: involuntary urine leakage during moments of increased intra-abdominal pressure
  • Urge Urinary Incontinence: involuntary urine leakage accompanied by or immediately preceded by the urge to urinate
  • Mixed Urinary Incontinence: combo of both stress and urge urinary incontinence with/without a strong urge
  • Functional Urinary Incontinence: recognizing the urge but not making it in time to use the toilet
  • Overactive Bladder: urinating more than 5-8 times in a 24-hour period
  • Nocturia: urinating more than 0-1 times per night

Urinary Conditions - Examples

  • Stress Urinary Incontinence: leakage while coughing, sneezing, laughing, squats, sit-ups, etc.
  • Urge Urinary Incontinence: feeling an immediate urge to pee
  • Functional Urinary Incontinence: needing a walker for ambulation, limiting speed
  • Overactive Bladder: needing to pee before an appt
  • Nocturia: waking up 4-5x/night to go pee

Urinary Conditions - Causes

  • Stress Urinary Incontinence: insufficient pelvic floor strength
  • Urge Urinary Incontinence: environmental triggers, bladder irritants, dehydration
  • Mixed Urinary Incontinence: increased intra-abdominal pressure, detrusor spasm
  • Functional Urinary Incontinence: lower extremity weakness, balance deficits, environmental barriers
  • Overactive Bladder: non-optimal behavior patterns, poor stress management
  • Nocturia: liquid consumption, bladder irritants, bladder storage issues, upregulated nervous system

Urinary Conditions - Prevalence

  • People assigned female: 25-45% mean prevelance, >40% for adults over 70, 41% mean prevelance in pregnant people with 63% experiencing stress incontinence, increases with weeks of gestation
  • People assigned male: Over 60, 38.5% experience urinary incontinence.
  • Overactive Bladder: >40 years in US, 29.8 million adults, 43% of people assigned female and 27% people assigned male
  • Nocturia: > 30 years old, 1 in 3, most common in adults >60 years, 48.6% of people assigned male at birth and 54.5% of people assigned female at birth.

Urinary Conditions - Physical consequences

  • Decreased sleep quality
  • Risk of falls/fractures
  • Increased daytime fatigue
  • Anxiety
  • Depression
  • Social Isolation
  • Professional consquences such as absenteeism

Treatments for Urinary Conditions-

  • "Knack technique:" preemptively contract pelvic floor muscles before cough or sneeze; decreases incontinence in pregnant and non-pregnant people assigned female at birth.
  • Group-based yoga decreased urinary frequency and stress incontinence.
  • Manual physical therapy (trigger point release): improved urinary frequency and urgency symptoms.
  • Lifestyle and stress management.
  • Bladder and bowel diary instruction and review.
  • Pelvic floor muscle exercises.

Bowel Conditions - Definitions

  • Fecal Incontinence: Inability to control bowel movements, resulting in fecal leakage.
  • Constipation: Infrequent bowel movements; less than 3 times per week
  • Fecal Urgency: Sudden need to rush to the bathroom to empty bowels
  • Incomplete Defecation: Inability to fully empty bowels

Bowel Conditions - Symptoms

  • Fecal Incontinence: Patient may smell like feces, wear several pant layers.
  • Constipation: Harder than normal feces, abdominal pain.
  • Fecal Urgency: Sudden need to rush to the bathroom to empty bowels.
  • Incomplete Defecation: "stuck" just inside the anus

Bowel Conditions - Causes

  • Fecal Incontinence: bowel irritants, dehydration, weakness and/or dysfunction of anal sphincter muscles.
  • Constipation: Insufficient fiber intake, sedentary lifestyle, injury to the pelvic floor muscles, stress.
  • Fecal Urgency: bowel irritants, dehydration, weakness and/or dysfunction of anal sphincter muscles, anxiety.
  • Incomplete Defecation: organ prolapse, weak pelvic floor muscles, stress and anxiety, bowel irritants.

Bowel Conditions - Prevalence

  • Fecal Incontinence: Affects 1 in 12 adults worldwide. Common in people assigned female at birth, and risk increases with age.
  • Fecal Urgency: 70.8% of 139 patients experiencing constipation.
  • Incomplete Defecation: 36.5% of people experiencing symptoms.
  • Constipation in Hospitalized Patients: 55.6% prevalence.

Bowel Conditions - Additional info regarding constipation

  • Elderly
  • Higher frailty scores
  • Heart failure and medication
  • Underreported to health care providers
  • Results in decrease in productivity and quality of life
  • Social isolation
  • Reported anxiety and depression

Bowel conditions: Treatments often include

  • Stress management and discussions
  • Education on optimal food, liquids and fiber intake
  • Pelvic floor muscle training
  • Pelvic floor muscle down training.

Pelvic Pain Conditions - Definitions

  • Overactive Pelvic Floor - Pelvic floor muscles do not relax, resulting in involuntary closing
  • Dyspareunia - Pain with sexual intercourse
  • Vaginismus - Involuntary contraction of the muscles of the outer third of the vagina
  • Endometriosis - Tissue similar to the uterine lining grows outside of the uterus
  • Bladder Pain Syndrome/Interstitial Cystitis (IC) - Chronic, painful bladder condition
  • Polycystic Ovarian Syndrome (PCOS) - Problems in the ovaries, includes hormonal balances

Pelvic Pain Conditions - Signs and Symptoms

  • Overactive Pelvic Floor - N/A
  • Dyspareunia - Painful vaginal penetration, sensation of tissues ripping
  • Vaginismus - Inability or significant difficulty with vaginal penetration
  • Endometriosis - Abdominal pain, pelvic pain, painful menstrual cramps, pain during or after sex
  • Bladder Pain Syndrome/Interstitial Cystitis (IC) - Pain on bladder filing, relieved by emptying the bladder
  • Polycystic Ovarian Syndrome (PCOS) - Missed or irregular menstrual cycles, too much face, chin, and/or body hair

Pelvic Pain Conditions - Etiology

  • Overactive Pelvic Floor - Traumatic experiences, childbirth, motor vehicle accidents, sexual injury
  • Dyspareunia - Overactive pelvic floor, birth injury, contractions in response to pain
  • Vaginismus - May be part of a general defense mechanism in the body.
  • Endometriosis - Unknown
  • Bladder Pain Syndrome/Interstitial Cystitis (IC) - Unknown
  • Polycystic Ovarian Syndrome (PCOS) - Unknown

Pelvic Pain Conditions - Prevalence

  • Overactive Pelvic Floor - N/A
  • Dyspareunia - 10-28% of people
  • Vaginismus - 5-17% reported in clinical settings
  • Endometriosis - At least 11% of American females, more than 6.5 million females, America
  • Bladder Pain Syndrome/Interstitial Cystitis (IC) - 1 in 10 females
  • Polycystic Ovarian Syndrome (PCOS) - 1 out of 10 people

Pelvic Pain Conditions - Treatments

  • Decrease tone of overactive muscles
  • Heal postpartum scar tissue
  • Manual physical therapy (trigger point releases in the vaginal canal over the pelvic floor muscles) to decrease symptoms of interstitial cystitis, urinary urgency symptoms, and urinary frequency symptoms
  • "Knack technique"
  • Group-based yoga therapy
  • Lifestyle changes
  • Pelvic floor muscle exercises
  • Manual therapy (trigger point therapy to the external gluteal muscles, pelvic wall muscles, posterior pelvic floor muscles, and the adductor muscle group).

Peripartum Considerations

  • Diastasis Recti - Increased distance between the rectus abdominis muscles at midline
  • Pubic Symphysis Diastasis - Excessive widening of pubic symphysis > 10mm
  • Perineal Tears - A tear in the tissue between the anus and the vaginal opening.
  • Episiotomy - Cut made by a healthcare professional into the perineum and vaginal wall to make more space for the baby to exit the vaginal canal.

Peripartum Considerations - Signs and Symptoms

  • Diastasis Recti - Feeling of instability that worsens with increased intro-abdominal pressure
  • Pubic Symphysis Diastasis - N/A
  • Perineal Tears - N/A
  • Episiotomy - N/A

Peripartum Considerations - Risk Factors

  • Diastasis Recti - Increased number of pregnancies, larger body size, diabetes, sedentary lifestyle)
  • Pubic Symphysis Diastasis - Increases with age
  • Perineal Tears - First time vaginal birth, larger baby (>9lbs), long second stage labor
  • Episiotomy - N/A

Peripartum Conditions - Prevalence

  • Diastasis Recti - 100% at gestational week 35
  • Pubic Symphysis Diastasis - Ranges from 1/300 to 1/30,000 people.
  • Perineal Tears - Up to 9 out of 10 first time mothers who have a vaginal birth
  • Episiotomy - 52% of vaginal births

Additional Peripartum Considerations

  • Sacrum flexibility.
  • Degrees of perineal tears: First, Second, Third, Fourth

Peripartum conditions: Treatments to consider

  • Changes may impact walking, lifting and transferring so modify these activities
  • Focus on changes in the lower abdomen such as stability and bulging
  • Perineal massage
  • Clock vaginal canal positions

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