Kinematic Differences in Lumbopelvic and Hip Movement Patterns During a Lower Limb Movement Test Between Two Groups of People With Low Back Pain

Abstract

Increased lumbopelvic motion during limb movements' tests was reported in low back pain (LBP) patients with and without rotational demand activities. The aim of this study was to compare lumbopelvic movement pattern between two groups of LBP patients with and without rotational demand activity during active hip external rotation test. Thirty nine patients with non-specific chronic LBP participated in this study. Patients were allocated into two groups, in first group 15 subjects (mean age ¼ 31:5 years) with rotational demand activities such as tennis, squash and golf, and in second group 24 subjects (mean age ¼ 31:2) without rotational demand activities participated in current study. Kinematic data from lumbopelvic-hip region during active hip external rotation test (AHER) were collected by a 3D motion analysis system. Variables including range of motion (ROM) of hip external rotation, pelvic rotation, pelvic rotation during first half of hip rotation motion and timing of pelvic-hip movement were calculated by MATLAB software for both sides and after this, independent t-test was used to compare the variables between 2 groups of study. The mean lumbopelvic rotation in lower extremities tests for both sides and lumbopelvic rotation in the dominant limb external J. Mech. Med. Biol. Downloaded from www.worldscientific.com by UNIVERSITY OF QUEENSLAND on 06/21/16. For personal use only. rotation test in the patients with rotational demand activities were significantly more than other group (p < 0:05). During dominant lower limb movement test, pelvic rotation in first half of movement and in patients with rotational activities was greater than in non-rotational group but hip rotation was statistically lesser than other group (p < 0:05). Other variables between the two groups were not significantly different (p > 0:05). The result of the study suggest that LBP patients who have rotational demand sports activities may move their lumbopelvic region in a greater magnitude during the AHER test than LBP people without rotational demand activities. Therefore, Lumbopelvic movement pattern in the different groups of the patients with LBP and based on their specific activities is different with each other.

Lumbopelvic-Hip Rhythm in People with Lumbar Flexion-with-Rotation Syndrome during Hip Internal Rotation i

“…Recently, some authors believe that subclassifying patients with LBP in homogeneous subgroups could considerably help in solving the problem ( 3 - 5 ). Differences in movement patterns of lumbopelvic of subgrouped people with LBP were also indicated in previous studies ( 4 , 6 - 9 ). Therefore, some authors have proposed models for the subgrouping of patients with LBP.…”

“…The obtained results can clarify how limb rotation may be related to LBP in patients with lumbar F + R syndrome. Some authors have suggested that increased lumbopelvic motion in a specific direction is a result of increased flexibility of the lumbopelvic soft tissues in those directions, which is induced by repeated movement of lumbopelvic motion in such directions through habitual or functional activities ( 4 , 28 , 30 ). Sadeghisani et al also demonstrated that forming of pattern of lumbopelvic movement impairment is a task-related sequence ( 28 ).…”

Low back pain and golf: A review of biomechanical risk factors

“…For example, external hip rotation ROM of the dominant limb was significantly increased in individuals who participated in rotational activities at least twice a week. 33 Limitations in either lumbar or pelvic regions caused the other region to compensate through abnormal motion, 31 predisposing individuals to injury.…”

“… 19 , 42 , 70 If golfers rotate past functional limitations during the swing, the spinal vertebrae and the tendons and ligaments connecting the musculature around the vertebrae are stressed leading to a higher risk of injury. 33 Further research is needed to elucidate the relationship between LBP and hip mobility.…”