Smart Phone as a Screening and Evaluation Tool to Identify Knee Valgus During Dynamic Activities
22 décembre 2014 mis à jour par: Mitchell Selhorst
Evaluation of the Use of the Smart Phone as a Screening and Evaluation Tool to Identify Knee Valgus During Dynamic Activities.
Evidence supports the use of two dimensional video analysis to assess the presence of dynamic knee valgus during generally used screening tasks, however there is limited evidence to support the use of the various smart phone applications as a time and money saving option for clinic use .
Subjects that present to the clinic and display dynamic valgus at the knee during the lateral step down test will be given the option to participate in the study.
If they consent to the study they will be evaluated with 2-Dimensional video analysis to determine the amount of valgus present at the knee during the lateral step down test.
The subject will also have the smart phone attached to their lower leg and the amount of valgus will be concurrently measured by the selected application.
The primary objective of this study is to determine the validity of an application on the smart phone to provide an objective measure of dynamic knee valgus.
The secondary objective of this study is to determine the possibility of the use of the application as a source of feedback during neuromuscular re-education training in order to decrease or eliminate a subject's dynamic valgus collapse and subsequently decreased their risk for future injury.
Aperçu de l'étude
Statut
Complété
Les conditions
Type d'étude
Observationnel
Inscription (Réel)
25
Contacts et emplacements
Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.
Lieux d'étude
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Ohio
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Westerville, Ohio, États-Unis, 43082
- Nationwide Children's Hospital Sports and Ortho PT Westerville
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Critères de participation
Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.
Critère d'éligibilité
Âges éligibles pour étudier
13 ans et plus (Enfant, Adulte, Adulte plus âgé)
Accepte les volontaires sains
Oui
Sexes éligibles pour l'étude
Tout
Méthode d'échantillonnage
Échantillon non probabiliste
Population étudiée
physical therapy clinic
La description
Inclusion Criteria:
- Willingness to participate
- ability to perform a single leg squat, drop jump, and single leg drop without pain
Exclusion Criteria:
- lower extremity injury within 6 months prior to testing
- history of lower extremity surgery
- lower extremity weight bearing restrictions
- inability to follow directions
- neoprene/latex allergy
- Adhesive allergy
- Current neurological or developmental condition
- inability to attend follow-up session
- actively receiving Physical Therapy intervention for varus/valgus impairment
- Current pregnancy
Plan d'étude
Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.
Comment l'étude est-elle conçue ?
Détails de conception
Cohortes et interventions
Groupe / Cohorte |
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smart phone inclinometer
For the smart phone analysis we will be using the tilt meter application which is a digital inclinometer application available on the I phone.
The phone will be placed in the vertical position utilizing the bubble level feature of the application.
The application will be set to display measurements to the closest tenth of the degree, set to log measurements every 0.2 seconds.
The subject will stand with knee extended to 0 degrees and quadriceps muscle activated and upper extremity support on opposite side of stance limb.
The phone will be placed in the vertical position on the anterior portion of the middle third of the subject's thigh attached using double sided adhesive tape.
Being placed as close as possible to level when attached to the anterior thigh with subject in single limb stance with a reading of less than 1 deg as minimum for correct set-up prior to testing.
Immediately prior to testing recording will be initiated logging measurements for later assessment.
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2-D video analysis
two dimensional video analysis by first placing markers on the subject at the midpoint of the femoral condyles, midpoint of the ankle malleoli, and the proximal thigh along a line from the anterior superior iliac spine (ASIS) to the knee marker.
Testing will take place in front of a digital video camera with tape on the floor to give a reference point for the subject being tested.
Participants will be tested twice on day 1 and then again 5-9 days later.
Subjects will be allowed 2-3 practice trials prior to each test in order to allow the subject to feel comfortable with each test.
Following the practice trials the subject will perform 3 trials of each test on bilateral lower extremities.
This set up was consistent with the set up by Munro et al.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
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Agreement in Dynamic lower extremity valgus angles during single leg squat
Délai: Baseline
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Patient's dynamic lower extremity valgus during single leg squat will be measured using both 2-D video analysis and smart phone inclinometer analysis.
Measurements of 2-D and smart phone will be taken at the same time.
Analysis will be repeated at 2nd visit to assess the reliability of the measurements
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Baseline
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
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Agreement in Dynamic lower extremity valgus angles during drop jump
Délai: Baseline
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Patient's dynamic lower extremity valgus during a drop jump from a 12 inch step will be measured using both 2-D video analysis and smart phone inclinometer analysis.
Measurements of 2-D and smart phone will be taken at the same time.
Analysis will be repeated at 2nd visit to assess the reliability of the measurements
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Baseline
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Autres mesures de résultats
Mesure des résultats |
Description de la mesure |
Délai |
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Agreement in Dynamic lower extremity valgus angles during single leg landing drop jump
Délai: Baseline
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Patient's dynamic lower extremity valgus during a single leg drop jump from a 12 inch step will be measured using both 2-D video analysis and smart phone inclinometer analysis.
Measurements of 2-D and smart phone will be taken at the same time.
Analysis will be repeated at 2nd visit to assess the reliability of the measurements
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Baseline
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Collaborateurs et enquêteurs
C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.
Parrainer
Les enquêteurs
- Chercheur principal: Mitchell C Selhorst, DPT, Nationwide Children's Hospital
Publications et liens utiles
La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.
Publications générales
- Munro A, Herrington L, Carolan M. Reliability of 2-dimensional video assessment of frontal-plane dynamic knee valgus during common athletic screening tasks. J Sport Rehabil. 2012 Feb;21(1):7-11. doi: 10.1123/jsr.21.1.7. Epub 2011 Nov 15.
- Swenson DM, Collins CL, Fields SK, Comstock RD. Epidemiology of U.S. high school sports-related ligamentous ankle injuries, 2005/06-2010/11. Clin J Sport Med. 2013 May;23(3):190-6. doi: 10.1097/JSM.0b013e31827d21fe.
Dates d'enregistrement des études
Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.
Dates principales de l'étude
Début de l'étude
1 juin 2014
Achèvement primaire (Réel)
1 juin 2014
Achèvement de l'étude (Réel)
1 septembre 2014
Dates d'inscription aux études
Première soumission
10 juin 2014
Première soumission répondant aux critères de contrôle qualité
18 juin 2014
Première publication (Estimation)
19 juin 2014
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
23 décembre 2014
Dernière mise à jour soumise répondant aux critères de contrôle qualité
22 décembre 2014
Dernière vérification
1 décembre 2014
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- IRB14-00222
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