Ultrasound Cavitation Versus Radiofrequency on Abdominal Fat


Overweight and obesity is prevalent among women of reproductive age (25-34 years) with 42% having a BMI > 25 kg/m2. Weight gain increases the risk of developing diabetes and cardiovascular disease. The amount of weight regain postpartum can shift women from the healthy weight category into the overweight or obese BMI categories. Purpose: This study was conducted to compare the effectiveness of ultra-sound Cavitation versus radiofrequency on abdominal fat thickness on postnatal women

Full Title of Study: “Effect of Ultrasound Cavitation Versus Radiofrequency on Abdominal Fat Thickness in Postnatal Women”

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Single Group Assignment
    • Primary Purpose: Treatment
    • Masking: Double (Participant, Outcomes Assessor)
  • Study Primary Completion Date: May 30, 2020

Detailed Description

Fifty overweight primipara women at 6 months postnatally aged from 20-35 years, BMI (25-29.9) kg/m2 and have waist hip ratio (WHR) > 0.8. They were assigned randomly into 2 equal groups: Group (A) received ultra-sound cavitation40 KHz applied for 30 min, once time weekly for 8 weeks. Group (B) received radiofrequency multi-polar 5MHZ applied for 30 min, once time weekly for 8 weeks. Both groups received the same diet program throughout the treatment period. All females in both groups were assessed through weight scale for body weight, tape measurement for waist/hip ratio and ultra-sonography for fat thickness of abdominal region before and after treatment


  • Other: healthy diet
    • balanced diet program which ranged from 1600 kcal to 2000 kcal/day, which was calculated in an individual basis for each woman according to her basal metabolic rate (BMR) for 8 weeks

Arms, Groups and Cohorts

  • Experimental: ultra-sound cavitation
    • cavitation40 KHz applied for 30 min, once time weekly for 8 weeks.
  • Experimental: radiofrequency
    • radiofrequency multi-polar 5MHZ applied for 30 min, once time weekly for 8 weeks

Clinical Trial Outcome Measures

Primary Measures

  • BMI calculation
    • Time Frame: 8 weeks
    • The woman’s BMI had calculated from measured weight & height for each woman in both groups (A&B) before beginning of the study and weight only had measured after 8 weeks of treatment sessions to according to the following equation: BMI=weight (Kg) /height (m2)

Secondary Measures

  • Waist to hip ratio Measurement
    • Time Frame: 8 weeks
    • WHR was calculated by dividing WC on HC. Both measurements were taken for all women in all groups (A & B) before starting the study and after 8 weeks of treatment sessions (end of study). All measurements were with the women in standing position. Skin of the anterior abdominal wall was cleaned while the woman in hip circumference worn light clothes and sometimes measurements repeated twice for more accurate. That measured WC, HC to measure (WHR) calculated by dividing the measurement of the waist by the measurement of the hips. WHR= (waist circumference / hip circumference)

Participating in This Clinical Trial

Inclusion Criteria

  • Their age were ranged from 20 to 35 years
  • their body mass index BMI 25-29.9 kg/m2
  • their waist hip ratio (WHR) > 0.8.

Exclusion Criteria

  • heart disease
  • high cholesterol
  • liver
  • kidney diseases

Gender Eligibility: All

Minimum Age: 25 Years

Maximum Age: 34 Years

Are Healthy Volunteers Accepted: Accepts Healthy Volunteers

Investigator Details

  • Lead Sponsor
    • Cairo University
  • Collaborator
    • Yasmin Mohamed Assim
  • Provider of Information About this Clinical Study
    • Principal Investigator: Ghada Ebrahim El Refaye, assistant professor Department of Physical Therapy for Women’s Health, Faculty of Physical therapy, Cairo University, Egypt – Cairo University
  • Overall Official(s)
    • ghada eb elrefaye, professor, Principal Investigator, Cairo University

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