[Retracted] Biomechanical Analysis of Touch Ball Movements in Tennis Forehand Strokes

Table 2

Common wrong actions when touching the ball.

Body parts	Wrong action
Legs	Excessive knee flexion at impact
Hip	Hip and shoulder end in a straight line
Upper body	Wrists are loose when touching the ball, arms are farther away from the body
Head and chest	Head down, do not look at the ball