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2013년 10월 24일 목요일

In healthy subjects, the sitting position can be used to validate the postural effects induced by wearing a lumbar lordosis brace

Brief review



*Title: In healthy subjects, the sitting position can be used to validate the postural effects induced by wearing a lumbar lordosis brace

*Author: M. Mathias, P.R. Rougier




Aim of the study
To assess the validity of the sitting position when testing lumbar braces for the maintenance of lordosis.


Patients and methods
▶Subject number: 12 young adults (seated on force platform)

Experimental conditions (4 ways)
1. with a brace
2. without a brace
3. with enforced lordosis
4. without enforced lordosis
(For distinguish between the roles played by lordosis and the brace)

-The trajectories of the centre of pressure (CP) were analyzed and compared.
(To assess postural orientation and stabilisation processes)


Results
-Using the lumbar brace led to reduction in CP displacement (along the mediolateral and anteroposterior axes).

-Lordosis barely affected postural performance and only an increase in the mean CP velocity was observed.

-An analysis of variance failed to reveal an interaction between the “lordosis” and “brace” factors.


Conclusion
-A lumbar brace (in the absence or presence of lordosis) helps subjects to improve their sitting performance.

-Function of brace wear emphasises the discriminant power of the sitting position: significant differences


-This task should be applied more widely in the development of more appropriate, validated equipment for lower back pain sufferers.