English Edition– category –

English version is here / 日本語版はこちら The correct answer for movement in tennis is not pushing off the ground. This action, which many players fall into, physically includes a time lag due to preliminary movements and energy loss ca...

English version is here / 日本語版はこちら 1. Definition of Basic Installation and Application Applied techniques are not mere habits or spontaneous ideas. Only when intentional verification (patch application) is accumulated on top of a...

English version is here / 日本語版はこちら In junior development, the term "weight transfer" often causes a severe bug known as "kinetic locking (freezing)." We will debug the physical truth necessary to irreversibly evolve initial veloc...

English version is here / 日本語版はこちら The word Relaxation is rampant in the tennis world. Many juniors misinterpret this word and destroy their own swing structure. 　This time, to establish the Truth for dominating physical laws wi...

English version is here / 日本語版はこちら In tennis, it is not just the moment of impact that determines the power of the ball. The quality of preparation leading up to it establishes the foundation of the output. However, many competit...

English version is here / 日本語版はこちら In tennis, the grip is the only contact point for transmitting kinetic energy generated by the body to the external tool known as the racket. However, many competitive junior players neglect the...

English version is here / 日本語版はこちら Losing balance after hitting or being unable to hit consecutively and immediately being pushed back—the very first thing junior players experiencing these issues should review is the Finish, the...

English version is here / 日本語版はこちら Swinging hard but the ball is unstable—the true identity of this bug is not a lack of swing speed, but the lack of a Deceleration Design to process the energy after impact. From the Architect's ...

English version is here / 日本語版はこちら Line of sight at impact (control of visual information and head retention). Watching the ball closely—this classical instruction contains a fatal bug in biomechanics. Players whose performance d...

English version is here / 日本語版はこちら Getting into the ball is not merely catching up. From the Architect's perspective, it refers to the calculation and execution of optimal coordinates to transfer 100% of your own output to the ba...