The science of "relaxing". How can you relax and improve your performance? 

"Where and where to relax?" "Where and where to put more effort?" We introduced specific points and recommended practice methods.
It is also a part common to all competitions, so I hope you can imagine replacing the "hip joint, knee joint, foot" part with other competitions ↓
[Baseball pitching and volleyball Attack]
hip joint → shoulder joint
knee joint → elbow joint
foot → hand
[Things that use tools such as baseball batting, golf, and tennis]
Hip joint → base of arm (joint from trunk)
Knee joint → The part of the hand that holds the tool
Feet → tip of tool
* Subtitles may be wrong. Thank you kindly look forward for your understanding.
We plan to add subtitles to all past videos, but we have not been able to add subtitles to many videos yet. We apologize for the inconvenience.
Videos with subtitles are listed at the bottom.
Also, if there are any languages you would like us to add, let us know in the comments.
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▼Index▼
0:00~ Opening
0:30~ summary
0:47~ Adverse effects of straining (mainly 3)
1:31~ Why is the speed slowing down?
4:24~ Why is the control messed up?
4:58~ Antagonistic muscles brake
6:33~ What is the timing to relax and put in?
12:17~ Purpose of full-strength training
16:14~ Notes on full-force training
17:57~ Concrete examples of all-out training
▼List of videos with subtitles added▼
[Volleyball] How to Spike a Volleyball (Part 1/2)
• 【バレーボール】スパイクの科学〜スイング編（...
[Volleyball] How to Spike a Volleyball (Part 2/2)
• 【バレーボール】スパイクの科学〜スイング編（...
[Volleyball] How to jump higher in volleyball
• How to jump higher in ...
[Volleyball] how to generate topspin in volleyball.
• バレーボール初心者向け！ドライブ回転をかける...
[Volleyball] Explain 3 common mistakes in receiving!
• バレーボール・レシーブの基本〜よくある間違い...
[Volleyball] The most important thing to pass (bump) is dynamic vision!
• バレーボール・レシーブに最も必要な能力は○○...
[Volleyball] Explain how to make your steps faster!
• バレーボール・レシーブの1歩目を最速にする方...
[Volleyball] Scientifically explain important footwork for spike receiving (Dig)
• バレーボール・スパイクレシーブ、強打を拾うた...
The science of "relaxing". How can you relax and improve your performance?
• 【脱力の科学】サッカー、野球、ゴルフ、バレー...

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