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EFFICACY OF THORACIC JOINT UNILATERAL VERTEBRAL PRESSURE AS ADJUNCT TO CENTRAL VERTEBRAL PRESSURE ON MIDDLE AND LOWER TRAPEZIUS MUSCLE STRENGTH. A RANDOMIZED CONTROLLED TRIAL

INTRODUCTION: A joint must have normal mobility in order for its corresponding muscles to work efciently. Weakness of lower trapezius is
common clinical nding. Manual therapy has a potential to achieve reexogenic changes in muscle and enhance the motor activity and strength.
PURPOSE OF THE STUDY: To nd out the efcacy of thoracic joint unilateral vertebral pressure on middle and lower trapezius muscle strength.
STUDY DESIGN: A Randomized Controlled Trial.
METHOD: Hundred normal male individuals were included in the sample. The subjects were randomly assigned into two groups. Experimental
(EX) group n=50 received Postero-anterior unilateral vertebral pressure along with Postero-anterior central vertebral pressure. Control (CON)
group n=50 received Postero-anterior central vertebral pressure.
RESULTS: The mean difference of pre and post of middle and lower trapezius mobilization pressure biofeedback unit was signicant < 0.0001
and < 0.0001 in EX and CON group respectively.
The mean value and standard deviation (SD) of middle trapezius mobilization PBU value between EX and CON group was non-signicant, post
treatment value was 34.54+9.57 and 34.82+9.16 respectively.
The mean value and standard deviation (SD) of lower trapezius mobilization PBU value between EX and CON group was non-signicant, posttreatment value was 37.04+10.47 and 36.60+9.91 respectively.
CONCLUSION: The study concluded that both postero-anterior central vertebral pressure and Postero-anterior central vertebral pressure along
with postero-anterior unilateral vertebral pressure were effective in increasing strength of middle and lower trapezius. But when compared
between experimental (EX) group and control (CON) group there was no difference in strength of middle and lower trapezius muscle. Adding of
postero-anterior unilateral vertebral pressure did not gave additional benet in increasing muscle strength.