The combination of radiofrequency (RF) heating and high-intensity focused electromagnetic (HIFEM) energy provides a single, noninvasive procedure for abdominal body shaping – simultaneously reducing belly fat while increasing abdominal muscle mass without surgery, reports a study in the May issue of Plastic and Reconstructive Surgery®, the official medical journal of the American Society of Plastic Surgeons (ASPS).
"Our study, metoprololsuccinat 1a pharma 47 5mg retardtabletten beipackzettel the first randomized trial of the combined RF and HIFEM procedure, documents a significant reduction in abdominal fat with an increase in abdominal muscle thickness," according to the clinical trial report by ASPS Member Surgeon Julene B. Samuels, MD, Louisville, Ky. "These effects are even greater than achieved with RF and HIFEM alone, and are maintained for up to 6 months after treatment."
Greatest effects on abdominal fat and muscle at 3 months
There is growing interest in the use of nonsurgical approaches to body contouring, including RF and HIFEM. Radiofrequency energy is used to increase the temperature of fatty tissue, leading to heat-induced damage of fat cells. Application of HIFEM triggers supramaximal muscle contractions, leading to muscle strengthening and growth. Used separately, RF energy is effective in reducing abdominal fat while HIFEM is effective in increasing muscle mass.
The new technology (marketed as Emsculpt Neo®) combines these two techniques, allowing RF heating and HIFEM energy to be applied simultaneously. The combined RF and HIEM device has received FDA clearance for noninvasive breakdown of abdominal fat.
Dr. Samuels and colleagues performed a randomized trial to evaluate the effects of the combined procedure. The study included 72 patients, average age 45 years, seeking abdominal body shaping. Patients were randomly assigned to receive RF plus HIFEM (48 patients) or an inactive "sham" procedure (24 patients).
Patients underwent three 30-minute treatments delivered once a week for 3 consecutive weeks. Follow-up visits at 1 month (67 patients), 3 months (56 patients), and 6 months (28 patients) included ultrasound scans to measure changes in the thickness of abdominal fat and muscle (rectus abdominis).
At 1 month, patients undergoing RF plus HIFEM had an average 20.5% decrease in abdominal fat with a 21.5% increase in abdominal muscle thickness. Three-month assessments showed further improvement: a 28.3% decrease in abdominal fat and a 24.2% increase in muscle thickness.
In contrast, the sham treatment group had no change in abdominal fat or muscle thickness. Six-month evaluation in patients receiving RF plus HIFEM showed minor, nonsignificant declines in treatment effect.
Ninety-four percent of patients in the RF plus HIFEM were satisfied with their treatment results (as were 40% of the sham treatment group). Side effects consisted of mild, temporary reddening of the skin and soreness of the abdominal muscles, with no significant complications.
Compared to previous studies of RF and HIFEM performed individually, the combined procedure appears to provide greater effects on abdominal fat and muscle thickness. "Enhanced results in our study are thought to be a direct result of simultaneous use of the two modalities as it has been shown that muscle hypertrophy can be enhanced by both mechanical and heat stimulation," Dr. Samuels and coauthors write. They note that their study cannot rule out an effect of increased exercise: patients may have been more motivated to exercise after seeing the initial results of the combined treatment.
"Active treatment utilizing simultaneous application of RF and HIFEM resulted in a significant increase in rectus abdominis thickness and subcutaneous fat reduction, exceeding previously published results for separate HIFEM and RF treatments," the researchers conclude. They emphasize the need for further studies, including assessment of the synergistic effects of RF plus HIFEM in combination and more detailed evaluation of patient-rated outcomes.
Wolters Kluwer Health
Samuels, J.B., et al. (2022) Radiofrequency Heating and High-Intensity Focused Electromagnetic Treatment Delivered Simultaneously: The First Sham-Controlled Randomized Trial. Plastic and Reconstructive Surgery. doi.org/10.1097/PRS.0000000000009030.
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