Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Takeji Kojima"'
Publikováno v:
Journal of Applied Biomechanics; Aug2014, Vol. 30 Issue 4, p563-573, 11p, 1 Black and White Photograph, 1 Diagram, 5 Charts, 5 Graphs
Publikováno v:
Journal of Sports Sciences. 32:517-523
The aim of this study was to determine the relationship between the reductions in momentum of punching arm segments and the impulse of the impact force when boxers throw a punch at a movable target with a mass almost equal to that of the human head.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b02db45b7006b99991a1be094285b740
https://doi.org/10.1080/02640414.2013.843014
https://doi.org/10.1080/02640414.2013.843014
Autor:
Takeji Kojima, Yoichi Iino
Publikováno v:
Sports biomechanics. 15(2)
The ability to generate a high racket speed and a large amount of racket kinetic energy on impact is important for table tennis players. The purpose of this study was to understand how mechanical energy is generated and transferred in the racket arm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b62a4f9baa6ed5752af5855e9f580ae
https://pubmed.ncbi.nlm.nih.gov/27111711
https://pubmed.ncbi.nlm.nih.gov/27111711
Autor:
Yoichi Iino, Takeji Kojima
Publikováno v:
Journal of Applied Biomechanics. 28:420-430
This study investigated the validity of the top-down approach of inverse dynamics analysis in fast and large rotational movements of the trunk about three orthogonal axes of the pelvis for nine male collegiate students. The maximum angles of the uppe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83ffb737190a5dd7ef1a2d61254a8f0a
https://doi.org/10.1123/jab.28.4.420
https://doi.org/10.1123/jab.28.4.420
Publikováno v:
Journal of Applied Biomechanics. 26:484-492
The fouetté turn in classical ballet dancing is a continuous turn with the whipping of the gesture leg and the arms and the bending and stretching of the supporting leg. The knowledge of the movement intensities of both legs for the turn would be fa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1ccc576945561a4ecba12a3c2d0bad6
https://doi.org/10.1123/jab.26.4.484
https://doi.org/10.1123/jab.26.4.484
Autor:
Yoichi Iino, Takeji Kojima
Publikováno v:
Journal of Sports Sciences. 27:1311-1321
The purpose of this study was to investigate whether performance level and ball spin affect arm and racket kinematics of the table tennis topspin forehand. Nine advanced and eight intermediate male table tennis players hit topspin forehands against l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0e0392f62f6ab799b7e3c93fa60d33a
https://doi.org/10.1080/02640410903264458
https://doi.org/10.1080/02640410903264458
Publikováno v:
Journal of Sports Sciences. 26:287-293
The purpose of this study was to assess the contributions of racket arm joint rotations to the racket tip velocity at ball impact in table tennis topspin backhands against topspin and backspin using the method of Sprigings et al. (1994). Two cine cam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9f36e5902c46b16d9b9f32ef97de46e
https://doi.org/10.1080/02640410701501705
https://doi.org/10.1080/02640410701501705
Autor:
Yoichi Iino, Takeji Kojima
Publikováno v:
Journal of sports sciences. 34(8)
The purpose of this study was to investigate the effect of the racket mass and the rate of strokes on the kinematics and kinetics of the trunk and the racket arm in the table tennis topspin backhand. Eight male Division I collegiate table tennis play
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45b9281d13a79a1ccb48ebe655e0e2df
https://pubmed.ncbi.nlm.nih.gov/26208598
https://pubmed.ncbi.nlm.nih.gov/26208598
Publikováno v:
Journal of applied biomechanics. 30(4)
The purpose of this study was to investigate the relevance of hip joint angles to the production of the pelvic rotation torque in fast-pitch softball hitting and to examine the effect of ball height on this production. Thirteen advanced female softba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de5de605181186fc5fe073b01aaf8757
https://pubmed.ncbi.nlm.nih.gov/24979815
https://pubmed.ncbi.nlm.nih.gov/24979815
Autor:
Takeji Kojima, Yoichi Iino
Publikováno v:
Sports biomechanics. 10(4)
The purpose of this study was to determine the significance of mechanical energy generation and transfer in the upper limb in generating the racket speed during table tennis topspin forehands. Nine advanced and eight intermediate table tennis players
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34f79cb5c5a25b9762aaf8818ea2ce72
https://pubmed.ncbi.nlm.nih.gov/22303787
https://pubmed.ncbi.nlm.nih.gov/22303787