Andrea L Deierlein, Jessica D Bihuniak, Ekanta Nagi, Jackie Litvak, Christian Victoria, Tanya Braune, Rick Weiss, Niyati Parekh
Development of a Technology-Assisted Food Frequency Questionnaire for Elementary and Middle School Children: Findings from a Pilot Study
Nutrients
rotational jumps crucial techniques sports competitions estimating ground reaction forces grfs constituting component jumps biomechanical modelbased approach allows analysis even environments force plates machine learning training data would impossible study rotational jump movements involving twists land measured using inertial measurement units imus grfs body loads estimated using 3d forward dynamics model forward dynamics optimization calculationbased estimation method generated optimized body movements using cost functions defined motion measurements internal body loads reduce influence dynamic acceleration optimization calculation estimated 3d orientation using sensor fusion comprising acceleration angular velocity data imus extended kalman filter result generating cost functionbased movements could calculate biomechanically valid grfs following measured movements even joints covered imus estimation approach developed study allows measurement condition training dataindependent 3d motion analysis