الإنتاج البحثي لأعضاء هيئة التدريس بالكلية V.8 - Flipbook - Page 164
(3) Ibrahim, R., Qatar University, 2023. Computation of three-dimensional euler angles through
a distinctive matrices pattern. U.S. Patent Application 17/972,330.
Link to Patent Publication: https://patents.google.com/patent/US20230130100A1/en
Systems, methods, apparatuses, and computer program products for computing three-dimensional
(3D) Euler angles through a distinctive matrices pattern. A method for calculating relative
orientations of rigid bodies in space may include determining a three-dimensional (3D) coordinate
system of a rigid body D at a time T. The method may also include determining a 3D coordinate
system of a rigid body E at time T. The method may further include determining a relative
orientation at time T of the rigid body E in the 3D coordinate system of the rigid body D. In addition,
the method may include calculating a final relative orientation of the rigid body E in the 3D
coordinate system of the rigid body D by implementing a single set of Euler angle equations
irrespective of a rotation sequence or a convention chosen.
(4) Ibrahim, R., de Boode, V., Kingma, I., & van Dieën, J. H. (2023). Data-driven strength and
conditioning, and technical training programs for goalkeeper’s diving save in football. Sports
Biomechanics, 1-13.
DOI: https://doi.org/10.1080/14763141.2022.2099966
The goal of this study was to evaluate the technical and physical adaptations to a data-driven 12weeks training programs that incorporated recent findings from biomechanical studies on the diving
save. Three-dimensional kinematics and kinetics were collected and analysed from 11 goalkeepers
diving to save high (190 cm) and low (30 cm) balls at three occasions: twice pre-training and once
post-training. Intraclass correlation coefficients were found to be excellent (>.7) between the pretraining tests, and there were no learning effects between them. Three-way repeated measures
ANOVAs were used to evaluate the effect of dive side, dive height and training programme (prevs post-training) on normalised dive time [s·m−1], average centre of mass (CoM) horizontal velocity
[m·s−1] and total power [W] generated at contralateral and ipsilateral push-offs. Compared to pretraining, the post-training results revealed greater average CoM horizontal velocity (+.82 m·s−1,
95% CI = [.62, 1.02]) and power (+523 W, 95% CI = [313, 732]) at contralateral push-off. These
adaptations caused a reduction in normalised dive time (- .008 s·m−1, 95% CI = [- .014, - .002]) at
post-training compared to pre-training. This translates to 42 cm more goal area coverage in a
penalty situation.
(5) Haddad, M., Abbes, Z., Ibrahim, R., Aganovic, Z., Bibi, K., & Padulo, J. (2022).
Relationship between Asymmetry Indices, Anthropometric Parameters, and Physical Fitness in
Obese and Non-Obese High School Students. International Journal of Environmental Research and
Public Health, 19(17), 10533.
DOI: https://doi.org/10.3390/ijerph191710533
. ﻣﻨﻌﻢ ﺣﺪاد.ﻟﻼطﻼع ﻋﻠﻰ ﻣﻠﺨﺺ اﻟﺒﺤﺚ ﯾﺮﺟﻰ اﻟﺮﺟﻮع اﻟﻰ ﻣﻠﺨﺺ اﻟﺒﺎﺣﺚ اﻟﺮﺋﯿﺲ د
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ﻣﻛﺗب اﻟﻌﻣﯾد اﻟﻣﺳﺎﻋد ﻟﺷؤون اﻟﺑﺣث واﻟدراﺳﺎت اﻟﻌﻠﯾﺎ ﺑﻛﻠﯾﺔ اﻟﺗرﺑﯾﺔ
