RecruitingNCT07095725

Effect of Primary Dysmenorrhea on Muscle Activity in Young Adult Females

Effect of Primary Dysmenorrhea on Abdominal and Back Muscles Activity in Young Adult Females

Sponsor

Cairo University

Enrollment

72 participants

Start Date

Jul 1, 2025

Study Type

OBSERVATIONAL

Conditions

Primary Dysmenorrhea

Summary

This study aims to investigate the effect of primary dysmenorrhea on the activity of the abdominal and back muscles in young adult females.

Eligibility

Sex: FEMALEMin Age: 18 YearsMax Age: 25 Years

Inclusion Criteria7

All females clinically diagnosed with PD, as confirmed and referred by a gynecologist.
Age ranges from 18 to 25 years.
BMI ranges from 20 to 25 kg/m2 .
Onset of menstrual pain 6-24 months after menarche.
Having a regular menstrual cycle (28 ± 7 days with no intermittent bleeding).
Their PD symptoms will be determined according to the WaLLID questionnaire and will be classified into mild PD (1-4), moderate PD (5-7), severe PD (8-12).
All participants are virgins.

Exclusion Criteria6

Menstrual irregularity.
Use of antidepressant or steroid drugs.
Secondary dysmenorrhea.
Musculoskeletal problems in the abdominal region, pelvic region, or spine.
Surgical history involving the abdominal region, pelvic region, or spine in the last year.
Any psychiatric or gynecological problems.

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Interventions

DIAGNOSTIC_TESTRecord EMG maximum amplitude from rectus abdominis, erector spinae L3 level

EMG Electrode Placement and Muscle Assessment: Electrodes for the rectus abdominis were placed longitudinally at the umbilical level. For the erector spinae, L3 was located using a line between the posterior superior iliac crests, and electrodes were placed \~3 cm lateral to the L3 spinous process. Assessment: Rectus Abdominis: In the crook-lying position, participants performed a slow curl-up (\~35-40°), holding for 10 seconds. Erector Spinae: In the prone position with a 10-cm pad under the abdomen, participants lifted the upper body with neutral cervical alignment for 10 seconds. Each test was repeated three times with 2-minute rest intervals.