＊Effect of the pelvic twist

  I practice tennis to utilize a pelvis to the maximum.  I move a pelvis using iliac muscle.  When it stops, I twist a pelvis.  Then, balance improves.  In addition, the load to a knee is reduced.  In the forehand, when I do take back, I twist the right pelvis.  When I make a shot, I twist the left pelvis.  At the same time, I pull the left shoulder blade quickly and push the right shoulder blade.  I twist a pelvis to make torsion to the upper body.  By torsion, a shoulder turns fast.  When I serve a ball, I twist the left pelvis.

＊About leg power reinforcement

I do a 500 meters race early in the morning.  Generally I run 500 meters six times.  I always run by the front landing of the foot then.  As an exercise to move pelvis, racewalking is helpful.  The footwork improves by moving a pelvis.     

  ＊About the scapular role of right and left

  In the forehand shot, the turn of the shoulder is is necessary.  It is to move shoulder blade of right and left to be important at the same time.  In the most players, an arm is dumped, but unfortunately the shoulder blade of right and left does not move.  Big power reaches the ball by moving shoulder blade of right and left.     

＊Fear of the vaccine

A 26-year-old nurse of Fukuoka was killed with corona vaccine.   In Japan, 39 people were already killed with corona vaccine.

＊Power of the Japanese culture

  The language study is required to learn the culture.   Everybody who survived, please study Japanese culture patiently.   And please hand down Japanese culture.