RecruitingACTRN12614000981628

The effect of talocrural mobilisation with movement on ankle dorsiflexion and knee valgus during squatting in individuals with a history of ankle sprains

Sponsor

University of Queensland

Enrollment

20 participants

Start Date

Aug 28, 2014

Study Type

Interventional

Conditions

History of lateral ankle sprains Decreased dorsiflexion range of motion

Summary

This study aims to investigate the effects of ankle mobilisations on ankle dorsiflexion ROM and its relationship to hip adduction and knee valgus in a single leg squat. Participants will be assessed before and after 6 treatment sessions over a 3 week period. Our primary aim is to determine the effect of ankle mobilisations on ankle dorsiflexion and knee valgus angle during squatting. A secondary aim is to determine whether a change in dorsiflexion range of motion following the first treatment predicts a change in dorsiflexion range of motion following the final treatment session.

Eligibility

Sex: Both males and females

Plain Language Summary

Simplified for easier understanding

This study tests whether a specific ankle mobilization technique (talocrural mobilisation with movement) can improve ankle flexibility and reduce inward knee movement during squats in people who have had ankle sprains in the past. Poor ankle flexibility can contribute to knee injuries. You may be eligible if: - You have had one or more ankle sprains more than 2 months ago - Your ankle has reduced flexibility (at least 20mm less dorsiflexion compared to the other ankle, or 60mm or less bilaterally on a weight-bearing lunge test) You may NOT be eligible if: - You have had ankle surgery involving internal fixation (screws, plates, or pins) - You had a musculoskeletal lower limb injury in the past 2 months that disrupted your activity - You are currently receiving physiotherapy treatment for your ankle or lower limb Talk to your doctor about whether this trial might be right for you.

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Interventions

The talocrural joint mobilisation with movement technique will be performed in a weight-bearing positions with the patient lunging forward on the leg being treated. A transfer belt will be positioned

The talocrural joint mobilisation with movement technique will be performed in a weight-bearing positions with the patient lunging forward on the leg being treated. A transfer belt will be positioned over the posterior distal tibia and fibula. An anterior glide will be applied to the tibia and fibula to achieve a relative posterior glide to the talus. The glide will be maintained while the subject actively moves their ankle to the end of pain-free dorsiflexion range of motion by lunging forward. Four sets of four repetitions with a 10 second hold at end range will be used as this has been found to be effective in improving dorsiflexion range of motion in individuals with chronic recurrent lateral ankle sprains. (Vicenzino, 2006). The mobilisation treatment sessions will be conducted 2 times per week for 3 weeks. Each session will be approximately 10 minutes in length and will be led by a physiotherapist. Participants will be emailed a reminder of the upcoming treatment session at least 24 hours before the event to improve treatment attendance.

Locations(1)

QLD, Australia

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ACTRN12614000981628