A method and apparatus for applying pressure to the abdomen of a patient to facilitate the insertion of a colonoscope is characterized by the use of a tensile compression device in the form of an elastic band which is wrapped around the patient's abdomen and secured in place. The tension of the band is adjusted to apply a desired degree of pressure to the patient's abdomen to reduce loops in the patient's colon so that the colonoscope can be fully inserted into the colon with minimal discomfort to the patient. The ends of the device are connected together when the desired degree of tension is obtained so that constant pressure and support are provided to the patient's colon. Addition pressure can be manually applied simultaneously with the pressure from the tensile device to reduce or eliminate more distal loops in the colon.