کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6205636 1265627 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A comparison of kinematic algorithms to estimate gait events during overground running
ترجمه فارسی عنوان
مقایسه الگوریتم های سینماتیک برای تخمین حوادث راه رفتن در حال اجرا بر روی زمین
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
چکیده انگلیسی


- We compare accuracy of a custom-designed and four existing kinematic algorithms.
- We estimate the timing accuracy of footstrike, toe-off and contact time in running.
- The accuracy of gait event estimation was variable between implemented algorithms.
- The custom-designed algorithm accurately estimated gait events at fast speeds.
- Further work is required to confirm this algorithm is effective at slower speeds.

The gait cycle is frequently divided into two distinct phases, stance and swing, which can be accurately determined from ground reaction force data. In the absence of such data, kinematic algorithms can be used to estimate footstrike and toe-off. The performance of previously published algorithms is not consistent between studies. Furthermore, previous algorithms have not been tested at higher running speeds nor used to estimate ground contact times. Therefore the purpose of this study was to both develop a new, custom-designed, event detection algorithm and compare its performance with four previously tested algorithms at higher running speeds. Kinematic and force data were collected on twenty runners during overground running at 5.6 m/s. The five algorithms were then implemented and estimated times for footstrike, toe-off and contact time were compared to ground reaction force data. There were large differences in the performance of each algorithm. The custom-designed algorithm provided the most accurate estimation of footstrike (True Error 1.2 ± 17.1 ms) and contact time (True Error 3.5 ± 18.2 ms). Compared to the other tested algorithms, the custom-designed algorithm provided an accurate estimation of footstrike and toe-off across different footstrike patterns. The custom-designed algorithm provides a simple but effective method to accurately estimate footstrike, toe-off and contact time from kinematic data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gait & Posture - Volume 41, Issue 1, January 2015, Pages 39-43
نویسندگان
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