Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Hirofumi Shimojo"'
Publikováno v:
Frontiers in Sports and Active Living, Vol 4 (2022)
This study aimed to investigate the changes in kinematics and muscle activity with increasing swimming velocity during underwater undulatory swimming (UUS). In a water flume, 8 male national-level swimmers performed three UUS trials at 70, 80, and 90
Externí odkaz:
https://doaj.org/article/c8ea06d95a82465cade58694ebc9595f
Autor:
Keisuke Kobayashi Yamakawa, Hirofumi Shimojo, Hideki Takagi, Shozo Tsubakimoto, Yasuo Sengoku
Publikováno v:
Data in Brief, Vol 14, Iss C, Pp 28-31 (2017)
We investigated the effects of synchronizing kick frequency with the beat of a metronome on kinematic and electromyographic (EMG) parameters during the underwater dolphin kick as a pilot study related to the research that entitled “Effect of increa
Externí odkaz:
https://doaj.org/article/41889eb4f8cd463eab611909599fe847
Autor:
Hiroshi Ichikawa, Hirofumi Shimojo, Yasuhiro Baba, Takao Mise, Rio Nara, Yoshimitsu Shimoyama
Publikováno v:
Proceedings, Vol 49, Iss 1, p 167 (2020)
This study investigates differences in propulsive force between the water surface and underwater conditions in the flutter kick swimming technique. The subjects were well-trained university male swimmers. A towing device was set up in a 25 m swimming
Externí odkaz:
https://doaj.org/article/1df478b56fdd40fd90ea93e010d28e08
Autor:
Koya Yamashiro, Daisuke Sato, Hideaki Onishi, Kazuhiro Sugawara, Sho Nakazawa, Hirofumi Shimojo, Kosuke Akatsuka, Hiroki Nakata, Atsuo Maruyama
Publikováno v:
PLoS ONE, Vol 10, Iss 12, p e0146379 (2015)
Externí odkaz:
https://doaj.org/article/b50ff288989c4feb9b18e109591ddbb9
Autor:
Koya Yamashiro, Daisuke Sato, Hideaki Onishi, Kazuhiro Sugawara, Sho Nakazawa, Hirofumi Shimojo, Kosuke Akatsuka, Hiroki Nakata, Atsuo Maruyama
Publikováno v:
PLoS ONE, Vol 10, Iss 11, p e0142581 (2015)
Athletic training is known to induce neuroplastic alterations in specific somatosensory circuits, which are reflected by changes in somatosensory evoked potentials and event-related potentials. The aim of this study was to clarify whether specific at
Externí odkaz:
https://doaj.org/article/56ca2cd60c0d4fce97632a6ee04521d6
Autor:
Yoshimitsu Shimoyama, Hirofumi Shimojo, Yusuke Ikeda, Yasuhiro Baba, Hiroshi Ichikawa, Rio Nara
Publikováno v:
Journal of Sports Sciences. 39:1497-1503
The present study was conducted to identify the kinematic variables associated with dolphin kick performance during the acceleration and deceleration phases. Nine male competitive swimmers performed 3-5 × 15-m dolphin kick swimming trials with maxim
Publikováno v:
Journal of Biomechanics. 93:60-69
Human undulatory underwater swimming (UUS) is an underwater propelling technique in competitive swimming and its propulsive mechanism is poorly understood. The purpose of this study was to visualize the three-dimensional (3D) flow field in the wake r
Autor:
Yoshimitsu Shimoyama, Hirofumi Shimojo, Yasuhiro Baba, Yusuke Ikeda, Rio Nara, Hiroshi Ichikawa
Publikováno v:
Journal of Sports Sciences. 37:2339-2346
Ankle flexibility is critical to obtain a high swimming velocity in undulatory underwater swimming (UUS). The present study investigated the Froude (propelling) efficiency and three-dimensional (3D) kinematics of human UUS following the extrinsic res
Autor:
Daisuke Sato, Yusuke Ikeda, Hiroshi Ichikawa, Yoshimitsu Shimoyama, Yasuhiro Baba, Hirofumi Shimojo, Rio Nara
Publikováno v:
Sports biomechanics.
This study investigated how the difference in the timing of the extension of the joints of the lower limbs during take-off affects the backstroke start performance. Eleven backstroke swimmers performed three lower-limb joint extension sequences of ba
Autor:
Hirofumi Shimojo, Takao Mise, Yoshimitsu Shimoyama, Hiroshi Ichikawa, Yasuhiro Baba, Rio Nara
Publikováno v:
Proceedings, Vol 49, Iss 167, p 167 (2020)
This study investigates differences in propulsive force between the water surface and underwater conditions in the flutter kick swimming technique. The subjects were well-trained university male swimmers. A towing device was set up in a 25 m swimming