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Archive for the ‘TennisandI Updates’ Category

Tennis Match performance diagram

Thursday, March 18th, 2010

When you play a tennis match, one outcome is win or lose, which is reflected in the match scores, such as 6:4, 6:3. However, from match scores you have no ideas how competitive the match is. You can only tell that the match maybe was an easy win for you if the scores were 6:2, 6:1 not 6:4, 6:3. Your match performance is registered in a series of point-by-point scores from which you can tell ups and downs of match and how competitive the match is.

With these in mind, I have created a web-based tool called “Tennis Match Performance Diagram”. This Match Performance Diagram is a plot of performance index generated from weighted scores against point scores of match. It gives an overall picture of your tennis match performance.

This online utility allows you to record and store your match scores, analyze your match with performance diagram, score chart and stats, and improve your tennis game play.

Try it out today, to see how it can help you to analyze and improve your tennis game play.


High-Percentage Tennis Tactics Guidelines: Directionals

Monday, April 20th, 2009

In this High-Percentage Tennis video, high-percentage groundstrokes are identified based on ball crossing or not crossing your body and relationship of ball and player.
if an incoming ball is outside shot as defined by shots that cross body, the high percentage groundstroke is no change of direction (C.O.D) of ball.
if an incoming ball is inside shot as defined by shots that do not cross body, the high percentage groundstroke is change of direction of ball.
high percentage groundstroke change direction guideline:
outside = no C.O.D
inside = C.O.D
For a down-the-line groundstroke, the high percentage shot is to hit the ball perpendicular (90 degree) to baseline. The shot aiming to the sideline is low percentage shot.
For players with inside-out forehand as a weapon, the high percentage shot is no C.O.D on deep inside-out forehand, and C.O.D on short inside-out forehand.

Traditional to Modern Forehand Groundstroke Comparison

Tuesday, March 24th, 2009

This excellent Modern Forehand Lesson from Dan Brown of I’m On Your Side Tennis has been added to TennisandI video lessons.

Digital video analysis tennis lesson on the forehand. In this episode, a 4.5 adult tournament player’s forehand is changed from traditional to modern.

traditional forehand: early preparation, turning side way, step in, then drive through the ball at the contact, hip and upper body rotations, bring in back foot around for 180 degree upper body rotation.

modern forehand: open stance, load up power in the right leg, kinetic chain, angular momentum.

Comparison of Traditional Forehand and Modern Forehand

traditional forehand: linear momentum, turn side way, weight moves forward, more side to side;

modern forehand: angular momentum, load on right leg, rotate around body axis, weight moves to left.

long rectangular vs cylinder shapes

Advantage of Modern Forehand

a) able to put more topspin on the ball so better control, b) alleviate the strain on the left knee.

Two-Handed Backhand Groundstroke Tips

Wednesday, March 18th, 2009

Coach Kyril shows this good video clip for better two-handed backhand. I like the demonstration with two finger of non-dominated hand to prove that indeed the dominated hand for two-handed backhand is left hand (for right handed players). This is the reason why a good exercise for two-handed backhand is to practice one left hand groundstroke as shown in the video clip. Some players use right hand as dominated hand for two-handed backhand, which is how one to hit for one-handed backhand. This video clip will definitely help those players to make correction. This raises an interesting question, what roles right hand play then? One role is to stabilize racquet swing as mentioned in the video clip. I would think there are two other important roles, one is to facilitate whip like motion of racquet swing, the other is to act as a pivot for racquet to generate more angular momentum.

Dynamic Warm-Up

Tuesday, March 3rd, 2009

A video clip of dynamic warm-up by Paul Gold has been added to video lessons.

The dynamic warm-up sequence includes:

  • Skipping forwards & backwards
  • Side shuffles
  • Carioca
  • Butt kicks
  • High knees
  • Zig Zags
  • Walking quad stretch and high kick walks
  • Walking Lunges
  • Leg and arm swings
  • Shadowing

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