Elucidation of the Mechanisms Underlying the Effects of Surface Electrical Stimulation on Pelvic Floor Muscle Contraction Characteristics in Nulliparous Women

Elucidation of the Mechanisms Underlying the Effects of Surface Electrical Stimulation on Pelvic Floor Muscle Contraction Characteristics in Nulliparous Women - Elucidation of the Mechanisms Underlying the Effects of Surface Electrical Stimulation on Pelvic Floor Muscle Contraction Characteristics in Nulliparous Women

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000061484

Enrollment

Registered

2026-05-11

Start date

2026-05-12

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Nulliparous Women with Difficulty in Pelvic Floor Muscle Contraction

Interventions

Intervention: Electrical stimulation at the maximum tolerable level combined with voluntary pelvic floor muscle contractions (5 seconds of electrical stimulation with contraction followed by 10 second

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: Nulliparous women aged 18-30 years

Exclusion criteria

Exclusion criteria: (1) Pregnancy or a history of childbirth (2) History of or current treatment for gynecological diseases (3) Participation in professional sports activities (4) BMI of 30 kg/m2or higher (5) Sensory impairment in the perineal region (6) Skin damage or inflammation in the perineal region (7) Metal or plastic implants in the perineal region (8) History of epilepsy, urinary tract infection, bleeding disorders, neurological abnormalities, or psychiatric treatment (9) History of orthopedic disorders related to the spine, pelvic girdle, or hip joint (10) Vascular disorders such as thrombosis, venous thrombosis, or varicose veins (11) Use of implanted electronic devices such as a pacemaker (12) Acute painful conditions of unknown origin (13) Cardiac disorders or malignant tumors (14) Febrile or infectious diseases (15) During menstruation (16) Ability to voluntarily contract the pelvic floor muscles

Design outcomes

Primary

Measure	Time frame
Tissue mobility during pelvic floor muscle contraction after each stimulation session (Displacement distance of the anorectal angle / Change in the anorectal angle).	—

Secondary

Measure	Time frame
Pelvic Floor Muscle Stiffness (Shear elastic modulus of the Levator Ani Muscle) Muscle Activity of Muscles Other Than the Pelvic Floor Muscles (External Oblique Muscle / Internal Oblique Muscle / Adductor Magnus / Gluteus Maximus)	—

Countries

Japan

Contacts

Public ContactRina Katagiri

Josai International University Graduate School of Health Sciences

mh25-005@jiu.ac.jp0475-55-8800

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026