The Acute Effects of Manual and Instrument-Assisted Cervical Spine Manipulation on Pressure Pain Threshold, Pressure Pain Perception, and Muscle-Related Variables in Asymptomatic Subjects: A Randomized Controlled Trial.

Bibliographic reference: 

Nogueira N, Oliveira-Campelo N, Lopes Â, Torres R, Sousa ASP, Ribeiro F. (2020). The Acute Effects of Manual and Instrument-Assisted Cervical Spine Manipulation on Pressure Pain Threshold, Pressure Pain Perception, and Muscle-Related Variables in Asymptomatic Subjects: A Randomized Controlled Trial. J Manipulative Physiol Ther. 2020 Mar-Apr;43(3):179-188. doi: 10.1016/j.jmpt.2019.05.007.