Validation of respiratory signal derived from suprasternal notch acceleration for sleep apnea detection

This study evaluates the respiration signal derived from an accelerometer mounted on the suprasternal notch in three body positions and three respiration types simulating normal sleep conditions. The Acceleration Derived Respiratory signal (ADR) is compared with single strain gauge belt and a standard spirometry signal taken as reference. The results demonstrate the potential of ADR as a simple, low cost and unintrusive method of screening breath disorders such as obstructive sleep apnea/hypopnea.