A preliminary study of the reliability and validity of the Posterior Standing Overhead Arm Reach (SOAR) test as a measure of functional hip extension motion

•Current clinical examination tests do not offer a good measure of functional hip extension motion.•We developed a novel test, the Posterior Standing Overhead Arm Reach (SOAR) test to address this need.•The Posterior SOAR test demonstrated excellent intrarater and good interrater reliability.•Measures on the Posterior SOAR test had low to moderate associations with 3D motion analysis.•The Posterior SOAR test offers a functional measure of hip extension feasible for clinical practice.