To determine the immediate effects on the abdominal musculature, assessed by ultrasound (RUSI), due to the application of electrostimulation using whole body electrostimulation together with physical exercise in healthy people and to compare with the application of local EMS in the abdominal area and the same physical exercise session. The same intervention is carried out for the control group as the WB-EMS group but simulated.

Evaluation of the immediate changes in the thickness of the abdominal muscles (Transversus abdominis, Internal and External Oblique and Rectus abdominis) and in the Interrectus distance after the physical exercise session together with whole body electrostimulation or local electrostimulation assessed by ultrasound (RUSI) in healthy people.

Inclusion Criteria:

• Healthy participants
• Good medical history without injury or chest pain in the past year
• No surgeries in the previous year.

Exclusion Criteria:

• Upper body mass index 30 Kg/m2
• Level of professional or elite sports activity
• Hyperventilation / hypercapnia and score above 23 points on the Nijmegen questionnaire
• Present any contraindication regarding the WB-EMS/EMS
• Viral o bacterial infections
• Arterial circulatory disorders, advanced arteriosclerosis
• Women during their menstrual period
• Type I diabetes, hemophilia, bruises, bleeding, cognitive deficit, fibromyalgia, congenital diseases with muscle-skeletal alterations at the level of the back and lower extremities, scoliosis, protrusion or disc herniation, medication consumption, abdominal surgeries (scars or keloids), abdominal muscle injury.
• Presence of chronic low back, hip or thigh pain