Fig. 3

The Single-leg small knee bend + lunge-lean test. (Illustrations adapted from Monnier et al.: Inter- and intra-observer reliability of clinical movement-control tests for marines. BMC Musculoskeletal Disorders 2012 13:263). Purpose: To test the ability of preventing extension, flexion, side bend and rotation of the lumbar spine, and control movement of the hips. Test movement: Forward lean of the trunk, performed in a single leg knee-bend position, whilst holding the final position for 5 s. Pass criteria: The spine in a neutral position without deviations into flexion, extension, side bend or rotation