Растопыриваем пальцы при плавании
Aug. 1st, 2022 09:44 am![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
vashu11Физическая интуиция давно уже подсказывала мне что при плавании пальцы надо немного растопыривать, но в обучающих видео для любителей про такие тонкости не упоминали. Немного покопал (на англ.) - так оно и есть.
Интересно что человечество дошло до этого факта где-то в 1970-х, при том что физика процессов была прекрасно известна минимум с 19-го века, а эффект солидный - порядка нескольких процентов.
аналогично по поводу прыжков
еще подборка для попаданца-спортсмена
Интересно что человечество дошло до этого факта где-то в 1970-х, при том что физика процессов была прекрасно известна минимум с 19-го века, а эффект солидный - порядка нескольких процентов.
аналогично по поводу прыжков
еще подборка для попаданца-спортсмена
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no subject
Date: 2022-08-01 06:41 am (UTC)no subject
Date: 2022-08-13 10:37 pm (UTC)Swimming Science Optimizing Training and Performance (G. John Muller)
Science of swimming faster (Riewald, Scott A. Rodeo, Scott)
история Shifting Currents A World History of Swimming (Karen Eva Carr)
no subject
Date: 2022-08-13 10:42 pm (UTC)Corkscrew swimming https://www.youtube.com/watch?v=A8f3QDHhRUs
combat stroke https://www.youtube.com/watch?v=ziymDC73Eug
https://en.wikipedia.org/wiki/Combat_sidestroke
Trudgen https://youtu.be/UllOELIWwoA https://en.wikipedia.org/wiki/Trudgen
Sidestroke https://en.wikipedia.org/wiki/Sidestroke https://www.youtube.com/results?search_query=Sidestroke
WITH
scissor kick https://www.youtube.com/results?search_query=scissors+kick++swimming
? https://www.youtube.com/watch?v=heKKhNBHp98
Free Colchian https://en.wikipedia.org/wiki/Free_Colchian ? https://www.youtube.com/shorts/cz0z5R7ROpY ?https://en.wikipedia.org/wiki/Georgian_swimming
просто тренировка плавания со связанными руками-ногами
? TURTLE STROKE
no subject
Date: 2022-08-13 10:42 pm (UTC)In the video below, you can watch Hyman employ the fish kick at each turn. Susie O’Neill—an Aussie whose dominance earned her the nickname “Madame Butterfly”—stays with Hyman through the first 100. But when they reach the final turn, Hyman fish kicks back into a clear lead. O’Neill can’t recover.
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The fish kick is the Devils Hole pupfish of the pool, a rarely seen and fascinating specimen. It emerged in Sunday night’s 4-by-100 men’s freestyle relay, when the United States’ Ryan Held used the kick on his turn in the third leg of the race. But Held’s fish kick was an unusual sight in Rio. If it’s the fastest kick in the world, why don’t more swimmers do it?
For one thing, if a swimmer screws up the fish kick, he’s risking disqualification. Per the rules outlined by Fédération Internationale de Natation, the sport’s international governing body, swimmers attempting the fish kick after turns in downward events—the breaststroke, the butterfly, and the freestyle portion of the individual medley—must not rotate onto their backs, even by a few degrees. In the backstroke, the opposite mandate applies: Athletes who rotate toward their stomachs will be DQ’ed.
A second problem: The fish kick is supremely difficult to master. In addition to keeping their bodies rotated just so, swimmers must worry about veering away from the center of their lanes, since it’s pretty much impossible to keep your eye on the lane markings when you’re on your side.
A piece published in Nautilus in 2015 explains the physics. Like the dolphin kick, the fish kick takes place underwater, where drag is less of an issue. But the sideways fish kick has an advantage over its dolphin cousin, because the turbulence it creates on each side of the body reverberates sideways into the pool uninterrupted, rather than being stopped by the pool’s bottom or the water’s surface.
http://nautil.us/issue/25/water/is-this-new-swim-stroke-the-fastest-yet
When Hyman practiced the fish kick, she often surfaced 30 meters from the wall, which was illegal under the 15-meter rule. She managed to shorten it for her Olympic swim, but it took a lot of practice
Why have swimmers neglected the “fish kick” technique?
https://www.tandfonline.com/doi/abs/10.1080/24748668.2008.11868444
https://www.inverse.com/article/4369-swimming-s-big-secret-the-mysterious-fifth-stroke
The Mysterious Fifth Stroke
on back https://youtu.be/SZB68290nvQ?t=147
fastest https://www.youtube.com/watch?v=bGRl0k2qvhY
misty https://vimeo.com/131554771
https://www.youtube.com/watch?v=mkl3D7bVkIw
https://m.facebook.com/fishswimfaster/videos/-fish-kick-i-realized-when-i-was-editing-these-files-which-i-always-name-new-vid/1574504606230063/
https://youtu.be/DGw_fRWiNVw?t=138
https://www.youtube.com/watch?v=rGJdtoDKeds
https://www.youtube.com/watch?v=GBfS-7tC9bQ
fish kick https://www.youtube.com/watch?v=ZcGIh6WFN7E
drill https://www.youtube.com/watch?v=VtadiHtIU6A
https://www.youtube.com/watch?v=tA1VBOcGQpY
fish kick https://www.youtube.com/watch?v=GBfS-7tC9bQ
wiki https://en.wikipedia.org/wiki/Fish_kick
no subject
Date: 2022-08-18 12:11 am (UTC)rip entry https://youtu.be/8GqWTqDhahM?t=107
Worthington jet https://youtu.be/8GqWTqDhahM?t=242
soumersault under water to trap air
no subject
Date: 2022-08-13 10:45 pm (UTC)Использовать вихри для увеличения сопротивления?
Kármán gaiting — происходит на низких числах Рейнольдса — 50-5000, рука движется минимум на миллионах
https://en.wikipedia.org/wiki/Drag_crisis — та же проблема
Подводное плавание? — см fish kick выше
no subject
Date: 2022-08-16 12:43 pm (UTC)no subject
Date: 2022-08-16 11:30 pm (UTC)https://ru.wikipedia.org/wiki/%D0%90%D0%BA%D0%B2%D0%B0%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0%D1%8F_%D1%82%D0%B5%D0%BE%D1%80%D0%B8%D1%8F
https://en.wikipedia.org/wiki/Aquatic_ape_hypothesis
Проблема в том что российские поп-писатели любят использовать нехитрый прием — взять полузабытую теорию (в свое время казавшуюся более менее адекватной) и ввести ее как затаиваемую рептилоидами правду.
Как по мне, одного ознакомления с проблемами отита у пловцов достаточно чтобы в ней усомниться.