Ambulance cot with a centrally located loading wheel providing improved lowest position maneuverability and method of use

An ambulance cot comprising generally a variable height support frame which is positionable and maneuverable above a surface by adjustable legs having support wheels and a method of use are disclosed. The support frame has a first portion pivotally coupled to a second portion having loading wheels. With the cot in a lowest position, the loading wheel are configured to rotate about a single axis when engaging the surface and to be positioned above the surface when the second portion is placed in a raised position relative to the first portion. The cot further includes a swivel castor mounted to the first portion between the loading wheels and the support wheels. When the cot is in the lowest position, the swivel castor engages the surface and will rotate about two axes when the second portion is in the raised position and about the same axis as the loading wheels when the second portion is not in the raised position.