Digital methods are increasingly used to monitor activity and pain, yet few studies combine data streams to assess clinically relevant constructs, such as movement-evoked pain (MEP). In this study of patients with chronic back pain being evaluated for spine surgery, in-vivo assessment of MEP was uncorrelated with pre-surgical pain, interference, or physical function. In support of our hypothesis, however, patients exhibiting greater preoperative MEP demonstrated greater improvement in pain interference one month after spine surgery. Digital technology can be leveraged to improve treatment recommendations for patients with chronic pain.