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1.  THE EFFECT OF TALO-CRURAL JOINT MANIPULATION ON RANGE OF MOTION AT THE ANKLE JOINT IN SUBJECTS WITH A HISTORY OF ANKLE INJURY 
Introduction: There is little research available on the effects of peripheral joint manipulation. Only a few studies have examined the effect of manipulation on ankle range of motion, with conflicting results. This study aimed to determine whether a single high-velocity, low-amplitude (HVLA) thrust manipulation to the talo-crural joint altered ankle range of motion in subjects with a history of lateral ligament sprain.
Methods: Male and female volunteers (N=52) with a history of lateral ligament sprain were randomly assigned into either an experimental group (n=26) or a control group (n=26). Those in the experimental group received a single HVLA thrust to the talo-crural joint, whilst those in the control group received no treatment intervention. Pre-test and post-test measurements of passive dorsiflexion range of motion were taken.
Results: No significant changes in dorsiflexion range of motion were detected between manipulated ankles and those of control subjects using dependent and independent t-tests. Ankles that cavitated displayed a greater mean DFR and large effect size (d=0.8) compared to those that did not gap and cavitate, but analysis with ANOVA revealed these differences to be not significant.
Conclusion: HVLA manipulation of the ankle did not increase dorsiflexion range of motion in subjects with a history of lateral ligament sprain.
PMCID: PMC2051316  PMID: 17987212
Ankle Joint; manipulation; dorsiflexion; range of motion; osteopathy
2.  THE EFFECT OF CERVICAL SPINE ISOMETRIC CONTRACT-RELAX TECHNIQUE ON HAMSTRING EXTENSIBILITY 
PMCID: PMC2051304  PMID: 17987203
Hamstrings; cervical spine; isometric; contract-relax; passive knee extension; clinical challenge
3.  THE EFFECT OF CERVICAL SPINE ISOMETRIC CONTRACT-RELAX TECHNIQUE ON HAMSTRING EXTENSIBILITY 
Objectives: To re-investigate the effect of a cervical isometric contract-relax technique on hamstring extensibility and examine the duration of any treatment effect.
Methods: Forty asymptomatic participants were randomly assigned equally to either an experimental or control group. Both groups underwent pre and post hamstring extensibility measurements using passive knee extension with the thigh maintained at 90┬░ of hip flexion, with the examiner blinded to treatment allocation of the participants. Torque was measured with a hand held dynamometer to maintain consistent force in pre and post measurements. The experimental group received an upper cervical isometric contract-relax treatment. A digital camera recorded the knee extension angles and the images were computer analysed to determine hamstring extensibility.
Results: A split plot ANOVA (SPANOVA) revealed no significant hamstring extensibility differences between or within the groups, immediately or at 30 minutes.
Conclusion: The cervical isometric contract-relax treatment produced no significant effect to the extensibility of the hamstring. This study does not support the use of cervical techniques to alter hamstring extensibility.
PMCID: PMC2051297  PMID: 17987201
Hamstrings; cervical spine; isometric; contract-relax; passive knee extension

Results 1-3 (3)