RR-PO-0328

Monday 10:00, Palau de Congressos, Exhibition Hall  [Display No. 478]

The evaluation of the influence of selected McKenzie’s exercises on statics of the lumbar spine. Kokosz M, Saulicz E, *Gnat R, **Plaatsman G, Kuszewski M. Department of Physiotherapy, *Department of Rehabilitation. University School of Physical Education, Katowice, Poland. **School of Logical Concept in Mechanical Analysis and Therapy, Amsterdam, The Netherlands. PURPOSE: The description of the direct influence of McKenzie’s flexion and extension exercises on statics of the lumbar spine created the objective of the study. SUBJECTS: 60 people aged from 24 to 33 yrs (26,9±2,8 on average) without present low back pain and with no history of such ailments participated. They were divided into 3 twenty-people groups: two experimental and one control. METHODS: The depth of the lumbar lordose, the angles of inclination of the sacro-lumbar and lumbo-thoracic transitions were measured twice. In experimental groups before and after 3 series of 10 repeats of either flexion or extension exercises, in control group with an interval of about 15 minutes. ANALYSES: The differences in analysed parameters of the spatial spine arrangement were compared with use of the dependent-data t-Student test. RESULTS: A minimal shallowing of the lumbar lordose connected with slight decrease of the sacro-lumbar transition angle and increase of the lumbo-thoracic transition angle was observed in the extension exercises group. For a change in the flexion exercise group a tendency to deepening of the lumbar lordose with decrease of angle values of both transitions were registered. There was however no statistical significance revealed (p>0,05 in all cases). CONCLUSION: Obtained results don’t show any more significant influence of the McKenzie’s flexion and extension exercises on the arrangement of the lumbar lordose.