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Supported Pelvic Floor Lengthening Positions

Draftstretch75%beginner⬤ moderate evidence
View FHIR resourceFHIR R4 ActivityDefinition — the interoperable form of this exercise

Positions & Range of Motion

Start
supine modified butterfly: soles of feet together, knees dropped apart and supported by pillows, arms relaxed (or deep supported squat / child's pose variants)
End
sustained gravity-assisted end-range hip abduction/external rotation with pelvic floor passively lengthened, held 60–90 s with diaphragmatic breathing
Range of Motion
static hold at comfortable end-range hip abduction/ER; minimal ongoing joint excursion — passive lengthening only

How to Perform

Static holds in gravity-assisted positions that passively lengthen the pelvic floor. Modified butterfly (supine, soles together, knees apart) was most effective for PFM relaxation on sEMG, followed by deep squat with yoga block and child's pose. Hold 60–90 s with diaphragmatic breathing.

Watch on YouTube↗

Opens a YouTube search for “Supported Pelvic Floor Lengthening Positions”

Equipment:yoga block
Starting position: supine

Coaching Cues

  1. 1

    Soles together, knees apart and supported by pillows if they fall too low

    (tactile)
  2. 2

    Combine each hold with slow diaphragmatic breathing — the breath IS the release mechanism

    (verbal)

Evidence-Based Dosing & EMG Data

Recommended Dosing

60–90 s hold × 3–5 cycles per position, 1×/day.

Muscles Involved (4)

Primary Movers

Diaphragm— Only actively-contracting muscle in this otherwise passive hold. The description states diaphragmatic breathing IS the release mechanism; diaphragm descent on inhalation reciprocally lengthens/relaxes the pelvic floor. No pelvic-floor slug exists in the roster, so the diaphragm is the legitimate primary driver.

Lengthened / Stretched

Adductor Group (Longus/Brevis/Magnus)— Hip abduction + external rotation of the modified butterfly (soles together, knees apart) and deep-squat positions passively elongate the medial adductors. Roster group slug already covers longus/brevis/magnus, so the individual adductor-longus and adductor-magnus entries were dropped to avoid double-counting the same muscles.
Gracilis— Two-joint medial thigh muscle, anatomically distinct from the adductor-group slug; stretched by the knees-apart hip abduction/ER of the butterfly hold. Passively elongated, not working, so lengthening is correct.
Pectineus— Distinct from the adductor-group slug; passively stretched by hip abduction/external rotation in the supported butterfly position.

Easier Variations ↓

1

Bolstered Butterfly

Pillows under both knees so they don't drop into discomfort.

Harder Variations ↑

1

Deep Squat with Block

Sit on a yoga block in a deep squat — block supports without sacrificing range.

2

Sequenced Flow

Cycle through butterfly → deep squat → child's pose, 60 s each, with breath.

Target Movements (5)

Hip AbductionHip Joint (Coxofemoral)
Hip External RotationHip Joint (Coxofemoral)
Hip FlexionHip Joint (Coxofemoral)
Ankle DorsiflexionTalocrural Joint
Lumbar FlexionLumbar Intervertebral Joints

Research Notes

Audience: chronic pelvic pain, postpartum (after tissue healing), general conditioning. sEMG shows decreased resting tone vs supine baseline. Subjective sense of 'opening' or 'heaviness' in perineum is desired — NOT bearing down. Modify (add bolster) if pain or guarding increases.