An inclinometric method for continuous measurement of sagittal movement of the lumbar spine

Abstract
A new inclinometric method for continuous measurement of sagittal movement of the spine in occupational or clinical studies has been developed. The method is based on miniature purpose-built inclinometers, 20 mm in length, 15 mm in diameter and 17 g in weight. They are designed to be used both in the laboratory online to a microcomputer for immediate data analysis and remotely in field studies where their operation can be unsupervised. This paper describes the instrument and its application.