Introduction: The increase in abdominal fat is associated with cardiovascular, metabolic and neoplastic diseases and has an aesthetic interest especially in young women. Ultracavitation, which is a physical agent that applies the mechanical effects of ultrasound on adipocytes, is an option for its approach. Objective: To determine the effect of ultracavitation in the reduction abdominal adiposity in women aged 30 to 40 years. Methodology: Preexperimental study in healthy woman or with overweight or obese, aged 30 to 40 years who received 15 ultracavitation sessions of 15 minutes per flank with multifunctional equipment at 40 kHertz, 40 W / cm2 and 100% of work cycle, 10 cm2 on each flank. Measurements of weight, height, BMI, percentage of fat mass, waist circumference and pliometry were made. Analysis with descriptive statistics, chi-square and Student's t for repeated measurements. Results: We included 24 women aged 34.4 ± 3.7 years. The weight was 81.4 ± 26.7 kg at baseline and 80.2 ± 25.5 kg at the end (p=0.01), basal body fat percentage of 39.7 ± 6.3 and 37.0 ± 6.8 final (p = 0.001), abdominal circumference 96.7 ± 14.9 cm and 92.5 ± 15.6 initial and final respectively (p < 0.001) and abdominal pliometry 38.5 ± 9.5 mm at baseline and 34.6 ± 10.6 final (p < 0.001). Conclusions: The approach to abdominal adiposity with 15 sessions of ultracavitation significantly reduces weight, body fat percentage, abdominal circumference and abdominal skin fold.
