Krkeljas, Z and Kovac, D. Relationship of ASLR and functional movement deficiencies in physically active individuals with and without low back pain. April 2017.
Over 80% percent of people experience low back pain (LBP), with 85% go undiagnosed and remain characterized as non-specific LBP. Consequently, researchers are proposing a multimodal approach to the assessment and management of the LBP, and classification of patients based on the functional movement impairment. Active straight leg raise (ASLR) is the most widely used diagnostic tests for LBP, but there is a lack of evidence of association with other clinical parameters, and functional analyses used in evaluation of LBP. Hence, the primary aim of this study is to investigate association of ASLR test with the movement deficiencies in muscles and joints responsible for lumbo-pelvic stability in populations with and without low back pain. 100 physically active participants with (n=50) and without LBP (n=50) volunteered for the study. One-way ANOVA was used to examine for potential differences between two groups, and multiple correspondence analysis (MCA) to examine the pattern of relationships between the measured variables.Relative to assessment tests participants without pain had significantly higher ASLR score (p < 0.001), demonstrated better hamstring flexibility (p < 0.001) and better gluteal activation pattern (p < 0.01). In addition, during evaluation participants with LBP had greater incidence of pelvic rotation during knee flexion, and hip internal rotation, relative to participants without LBP (p < 0.001). Results also demonstrate that participants with pain scored largely 1 on the ASLR which was also associated with hamstring tightness, calf tightness, limited trunk flexion, hypo-mobility of the trunk, and posterior pelvic tilt. These findings indicate a strong association of low back pain with functional movement impairment and weakness in movement motor control. ASLR test should be used conjunction with other functional evolution tests to isolate the cause of LBP in physically active individuals.
Research currently in progress
Kovac, D, Krkeljas, Z and Venter, R. Effect of 6-week intervention on functional movement performance in female netball players.
Kovac, D, Krkeljas, Z and Venter, R. Relationship of functional movement screen and athletic performance in female netball players.