The Association Between Restricted Ankle Joint Dorsiflexion and Dynamic Knee Valgus

Completed

• Conditions: Ankle Injuries and Disorders; Movement, Abnormal; Adolescent Development; Knee Injuries
• Interventions: Behavioral: Observation

• Registration Number: NCT05500131
• Lead Sponsor: University Rovira i Virgili

Brief Summary

The purpose of this study was to analyze if a low ankle dorsiflexion range is associate with dynamic knee valgus in youth basketball players.

Detailed Description

Cross-sectional study. Ankle dorsiflexion range of motion was assessed by the Weight-bearing lunge test and the dynamic knee valgus by the Single leg squat test.

The participants were basketball players who belonged to youth basketball de-velopmental teams in the under-12 (U12), under-14 (U14), under-16 (U16) and under-17 (U17) categories. All participants were recruited by means of simple random sampling from the Catalan Basketball Federation during the 2018-2019 season. The participants were classified according to gender and age as stipulated by the rules determined an-nually for the respective official competitions. The study was carried out in the facilities of each club. The inclusion criteria were being age \>12 and ≤17 at testing and actively competing during the study. Subjects were excluded if they had sustained any type of injury in the lower limbs before screening; presented any injury (overuse or acute) at the time of testing; if they had any oncological, psychological and/or psychiatric illnesses; or if they did not attend on the day of the assessment.

Study Timeline

• Study Start: 2018-10-01
• Primary Completion: 2019-05-20
• Study Completion: 2019-06-30
• Study First Submitted: 2022-08-10
• Study First Submitted QC: 2022-08-10
• Study First Posted: 2022-08-12
• Status Verified: 2023-11
• Last Update Submitted: 2023-11-02
• Last Update Posted: 2023-11-07

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 791

Inclusion Criteria

• Being age >12 and ≤17 at testing and actively competing during the study

Exclusion Criteria

• Subjects were excluded if they had sustained any type of injury in the lower limbs before screening; presented any injury (overuse or acute) at the time of testing; if they had any oncological, psychological and/or psychiatric illnesses; or if they did not attend on the day of the assessment.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Experimental group	Observation	All participants allowed three practice trials for each test in this order: the Weight-bearing lunge test and the Single-leg squat test. Both of them were evaluated through the Leg Motion system (LegMotion, your MOtion®, Albacete, Spain)

Primary Outcome Measures

Name	Time	Method
Dynamic lower extremity valgus	1 year	The Single Leg Squat Test was used. The evaluator recorded a frontal and sagittal view with two filming devices. The knee was considered to be aligned if the patella was over the second toe.
Ankle joint dorsiflexion	1 year	he Weight-bearing Lunge Test measured with the Leg Motion® system (Check Your Motion, Albacete) was used. Ankle dorsiflexion was recorded in centimeters.

Secondary Outcome Measures

Name	Time	Method
Age	1 year	Years
Gender	1 year	Male or female
Age categories	1 year	According to the age of the participant could compete in 4 categories: U12, U14, U16 or U17.
Weight	1 year	Kilograms
Height	1 year	Centimeters
Wingspan	1 year	Centimeters
Body mass index	1 year	Kg/m2
Hypermobility	1 year	Beighton's criteria (scores of \>7 points out of a total of 9 points were considered hypermobile)

Trial Locations

Locations (1)

Federación Catalana de Baloncesto; 🇪🇸 Barcelona, Spain