NIMMO or Receptor Tonus Technique is a soft-tissue technique that focuses on the fact that muscles are responsible for causing abnormal joint function. NIMMO addresses muscular problems, usually called trigger points, by applying pressure to a muscle on the point of imbalance for 7-10 seconds. This allows the muscle to relax and re-acquire its normal resting length. This procedure allows the bone(s), to which the muscle(s) attach, to move normally to restore proper joint function.