Spine motion during coitus (with commentary on the implications)

Physicists and engineers, among others, might be able to appreciate the care that went into this study of female spine motion during coitus: “Documenting female spine motion during coitus with a commentary on the implications for the low back pain patient,” Natalie Sidorkewicz [pictured here] and Stuart M. McGill, European Spine Journal, Volume 24, Issue 3, March […]

Kinematics of coitus in five pre-selected positions

Natalie Sidorkewicz carefully analyzed spine and hip motions of ten couples each having sex in five positions. Sidorkewicz wrote it up, as her master’s thesis : “Lumbar Spine and Hip Kinematics and Muscle Activation Patterns during Coitus: A comparison of common coital positions,” Natalie Sidorkewicz, Master of Science thesis in Kinesiology, University of Waterloo, 2013. The main objective […]