During voluntary muscle contraction, the brain sends signals down the spinal cord and out to the muscle via nerves where a complex electrochemical process results in muscle contraction. The Slendertone abdominal products use EMS technology to mimic the body’s natural process. It sends signals to the nerves in and around the muscle, which results in subsequent muscle contraction. It should be noted that muscle contraction results by targeting the nerves rather than targeting the muscles directly.
Slendertone selected a gel pad location for the Slendertone abdominal toners that allows maximal nerve activation and hence maximal muscle activation. The abdominal toners target the center and side abdominal muscles, namely Rectus Abdominis, External Oblique, Internal Oblique and Transversus Abdominis. The nerves that activate the upper and lower center abdominal muscles originate in the spinal cord and circle around the body passing between the waist and ribs, hence the location of the side gel pads.
By sending signals between the side and the middle gel pads, the product targets these nerves and in doing so both upper and lower abdominal muscle contract. By targeting the nerves, it is not necessary to have gel pads that cover the entire muscle. Muscles whose nerves have been activated but which do not lie beneath a gel pad will still therefore contract. The middle gel pad location of the product lies over the umbilicus (belly button) - it is centrally placed between the “upper” and “lower” abs. This is the best location to get strong comfortable abdominal muscle contractions that have been shown to give improvements in muscle strength, muscular endurance with users reporting a firmer, flatter stomach.