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International Journal of Recent Trends in Science and Technology, ISSN 2277-2812 E-ISSN: 2249-8109

Volume 10, Issue 1, February 2014 pp 179-183

Research Article

Efficacy of Unilateral Z - joint Mobilization on Posterior Chain Neurodynamics


Surendra K. Wani1, Khan Rakshanda2, Sunita D. Chavan3

1Assistant Professor, 2,3MPTH

Department of Musculoskeletal Physiotherapy, MGM’s School of Physiotherapy, N-6 CIDCO Aurangabad, Maharashtra, INDIA.


Academic Editor : Dr. Aher K.R.



Aim of the study: To study the efficacy of Z joint mobilization on bilateral posterior chain neurodynamics.Methodology: 50 healthy participants with hamstring tightness with bilateral passive SLR < 70 degrees were included in the study. 5 sessions of Grade 3 oscillatory PA mobilizations were given unilaterally at a frequency of 2 Hz to the T12/L1, L1/L2, L2/L3, L4/L5 and L5/S1 Z-joints for 30 s per joint (3 min total treatment) on the side of dominant leg. Pre and post intervention SLR measurements were noted. Results: On comparison between pre and post SLR measurement using paired ‘t’ test, a significant difference between baseline and post-intervention for the unilateral mobilization (p<0.001) found. In the present study there was increase in the SLR measurement by 23.84% on ipsilateral side and 12.86% on contra lateral side. Conclusion: This study concluded that unilateral lumbar Z joint mobilization is effective in increasing SLR range on ipsilateral as well as contralateral side.