Fig. 1

Lumbar spine marker set and model. a. Marker Placement on a participant. b. Computer Model as shown in the data collection software program. c. Spine Model representation with upper (blue) and lower (red) lumbar segments identified**Reprinted from Gait & Posture, 42(4); Gombatto SP, Brock T, DeLork A, Jones G, Madden E, Rinere C, Lumbar spine kinematics during walking in people with and people without low back pain; 539–544, 2015, with permission from Elsevier (https://www.journals.elsevier.com/gait-and-posture/) [30]