Smart Phone as a Screening and Evaluation Tool to Identify Knee Valgus During Dynamic Activities
22 december 2014 bijgewerkt door: 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.
Studie Overzicht
Toestand
Voltooid
Conditie
Studietype
Observationeel
Inschrijving (Werkelijk)
25
Contacten en locaties
In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.
Studie Locaties
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Ohio
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Westerville, Ohio, Verenigde Staten, 43082
- Nationwide Children's Hospital Sports and Ortho PT Westerville
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Deelname Criteria
Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
13 jaar en ouder (Kind, Volwassen, Oudere volwassene)
Accepteert gezonde vrijwilligers
Ja
Geslachten die in aanmerking komen voor studie
Allemaal
Bemonsteringsmethode
Niet-waarschijnlijkheidssteekproef
Studie Bevolking
physical therapy clinic
Beschrijving
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
Studie plan
Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.
Hoe is de studie opgezet?
Ontwerpdetails
Cohorten en interventies
Groep / Cohort |
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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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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Agreement in Dynamic lower extremity valgus angles during single leg squat
Tijdsspanne: 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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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Agreement in Dynamic lower extremity valgus angles during drop jump
Tijdsspanne: 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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Andere uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Agreement in Dynamic lower extremity valgus angles during single leg landing drop jump
Tijdsspanne: 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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Medewerkers en onderzoekers
Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.
Sponsor
Onderzoekers
- Hoofdonderzoeker: Mitchell C Selhorst, DPT, Nationwide Children's Hospital
Publicaties en nuttige links
De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.
Algemene publicaties
- 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.
Studie record data
Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.
Bestudeer belangrijke data
Studie start
1 juni 2014
Primaire voltooiing (Werkelijk)
1 juni 2014
Studie voltooiing (Werkelijk)
1 september 2014
Studieregistratiedata
Eerst ingediend
10 juni 2014
Eerst ingediend dat voldeed aan de QC-criteria
18 juni 2014
Eerst geplaatst (Schatting)
19 juni 2014
Updates van studierecords
Laatste update geplaatst (Schatting)
23 december 2014
Laatste update ingediend die voldeed aan QC-criteria
22 december 2014
Laatst geverifieerd
1 december 2014
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- IRB14-00222
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