طراحی، ساخت و اعتبارسنجی جعبه عکسبرداری کف پا برای اندازه‌گیری منتخبی از شاخص‌های اثر پا

نوع مقاله: مقاله پژوهشی

نویسندگان

گروه بهداشت و طب ورزشی، دانشگاه تهران، تهران، ایران

چکیده

زمینه و هدف: اندازه‌گیری قوس داخلی پا به عنوان مهم‌ترین مرجع برای مشخص کردن ناهنجاری‌های پا و پیگیری روند درمان به شمار می‌رود و استفاده از شاخص‌های اثر پا به عنوان متداول‌ترین روش برای ارزیابی قوس داخلی پا شناخته می‌شود. هدف از‌‌ مطالعه حاضر معرفی وسیله جدید طراحی و ساخته شده به نام جعبه عکسبرداری کف پا در اندازه‌گیری شاخص‌های رایج اثر پا و تعیین اعتبار آن می‌باشد.
مواد و روش‌ها: در‌ این مطالعه توصیفی-همبستگی تعداد 20 آزمودنی مرد و زن به صورت تصادفی از میان جامعه آماری انتخاب شدند. اندازه‌گیری شاخص‌های اثر ‌پا  بوسیله جعبه عکسبرداری کف پا انجام گرفت. طراحی این وسیله با دوربین و بر اساس تکنیک پردازش تصویر بوده و قابلیت محاسبه تمامی شاخص‌های پا را دارا می باشد. از رادیوگرافی جانبی پا به عنوان استاندارد طلایی به منظور اعتبارسنجی وسیله جدید استفاده شد. برای تعیین میزان اعتبار دستگاه جدید از ضریب همبستگی پیرسون استفاده شد.
یافته‌ها: نتایج نشان دادند که بین مقادیر شاخص‌های اثر پا حاصل از جعبه عکسبرداری کف پا و رادیوگرافی اعتبار قوی و بسیار قوی وجود دارد ( 0.89 تا 0.55 =r). بیشترین ضریب همبستگی بین شاخص استاهلی و زاویه انحراف پاشنه (0.89=r) و کمترین ضریب همبستگی بین شاخص چیپائوکس اسمیراک و ارتفاع ناوی مشاهده شد (0.55=r).
نتیجه‌گیری: نتایج این تحقیق نشان دادندکه جعبه عکسبرداری کف پا در سنجش شاخص های رایج اثر پا دارای اعتبار بالا می باشد; لذا استفاده از این وسیله برای اندازه‌گیری دقیق و سریع شاخص‌های اثر پا توصیه می‌شود.

تازه های تحقیق

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کلیدواژه‌ها


عنوان مقاله [English]

Design, Construction and Validation of Foot Photo Box in Measuring a Selection of Footprint Indexes

نویسندگان [English]

  • Mahsa Hakimipoor
  • Reza Rajabi
  • Hooman Minoonejad
Department of Health & Sport Medicine, Faculty of Sport Sciences, University of Tehran, Tehran, Iran.
چکیده [English]

Background and purpose: Measuring medial longitudinal arch of the foot is considered as the most important reference to identify foot disorders and to follow up treatment procedure and using footprint indexes is known as the most common method to evaluate medial longitudinal arch of foot. The objective of this study is to introduce a new designed and constructed device known as Foot Photo Box for measuring common footprint indexes, and to validate it.
Methodology: In this descriptive-correlation study, 20 male and female subjects were randomly selected from statistical population. Measuring common footprint indexes was done using foot photo Box. Design of this device is based on a camera and image processing technique which has capability to compute all indexes of foot. Lateral radiography of foot was used as a golden standard for validating the new device .To determine validation of the new device, Pearson correlation coefficient was used.
Results: Results showed that there is strong and very strong validity between the values of footprint indexes obtained from Foot Photo Box and radiography (r=0.55 to 0.89). The highest correlation coefficient was for Staheli index and Calcaneal Inclination Angle (r=0.89) and the lowest correlation coefficient was for Chippaux-Smirak index and navicular height (r=0.55).
Conclusion: Results of this research showed that Foot Photo Box has a high validation in measuring common footprint indexes; therefore using this device is suggested for careful and rapid measurement of footprint indexes.

کلیدواژه‌ها [English]

  • Validation
  • Footprint indexes
  • Radiography
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