کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10431296 | 910211 | 2015 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An inertial sensor-based system for spatio-temporal analysis in classic cross-country skiing diagonal technique
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی پزشکی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An inertial sensor-based system for spatio-temporal analysis in classic cross-country skiing diagonal technique An inertial sensor-based system for spatio-temporal analysis in classic cross-country skiing diagonal technique](/preview/png/10431296.png)
چکیده انگلیسی
The present study proposes a method based on ski fixed inertial sensors to automatically compute spatio-temporal parameters (phase durations, cycle speed and cycle length) for the diagonal stride in classical cross-country skiing. The proposed system was validated against a marker-based motion capture system during indoor treadmill skiing. Skiing movement of 10 junior to world-cup athletes was measured for four different conditions. The accuracy (i.e. median error) and precision (i.e. interquartile range of error) of the system was below 6Â ms for cycle duration and ski thrust duration and below 35Â ms for pole push duration. Cycle speed precision (accuracy) was below 0.1Â m/s (0.005Â m/s) and cycle length precision (accuracy) was below 0.15Â m (0.005Â m). The system was sensitive to changes of conditions and was accurate enough to detect significant differences reported in previous studies. Since capture volume is not limited and setup is simple, the system would be well suited for outdoor measurements on snow.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Biomechanics - Volume 48, Issue 12, 18 September 2015, Pages 3199-3205
Journal: Journal of Biomechanics - Volume 48, Issue 12, 18 September 2015, Pages 3199-3205
نویسندگان
Benedikt Fasel, Julien Favre, Julien Chardonnens, Gérald Gremion, Kamiar Aminian,