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Smart Phone as a Screening and Evaluation Tool to Identify Knee Valgus During Dynamic Activities

22 december 2014 uppdaterad av: 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.

Studieöversikt

Status

Avslutad

Betingelser

Studietyp

Observationell

Inskrivning (Faktisk)

25

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

  • Förenta staterna
    • Ohio
      • Westerville, Ohio, Förenta staterna, 43082
        • Nationwide Children's Hospital Sports and Ortho PT Westerville

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

13 år och äldre (Barn, Vuxen, Äldre vuxen)

Tar emot friska volontärer

Ja

Kön som är behöriga för studier

Allt

Testmetod

Icke-sannolikhetsprov

Studera befolkning

physical therapy clinic

Beskrivning

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

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

Kohorter och interventioner

Grupp / Kohort
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.
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.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Agreement in Dynamic lower extremity valgus angles during single leg squat
Tidsram: Baseline
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
Baseline

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Agreement in Dynamic lower extremity valgus angles during drop jump
Tidsram: Baseline
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
Baseline

Andra resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Agreement in Dynamic lower extremity valgus angles during single leg landing drop jump
Tidsram: Baseline
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
Baseline

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

Mitchell Selhorst

Utredare

  • Huvudutredare: Mitchell C Selhorst, DPT, Nationwide Children's Hospital

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

1 juni 2014

Primärt slutförande (Faktisk)

1 juni 2014

Avslutad studie (Faktisk)

1 september 2014

Studieregistreringsdatum

Först inskickad

10 juni 2014

Först inskickad som uppfyllde QC-kriterierna

18 juni 2014

Första postat (Uppskatta)

19 juni 2014

Uppdateringar av studier

Senaste uppdatering publicerad (Uppskatta)

23 december 2014

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

22 december 2014

Senast verifierad

1 december 2014

Mer information

Termer relaterade till denna studie

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • IRB14-00222

Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .

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