Contributing to the betterment of performance
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When observing a backhand swing in tennis it is noted that the transverse plane is being emphasized, in the upper portion of the body the shoulders will rotate along the vertical axis while keeping the head strait, eye on the ball and keeping a strong diaphragm. When talking about left back hand it is shown that while the right hand is being swung backwards it is also being flexed while keeping a straight forearm without flexion or extension of the wrist, then when it comes to the front of the body it is being extended.
For the lower half of the body, the hips are being rotated along the vertical axis. For a back hand to have power it is essential to have proper balance and stability which is a key component of the legs, the knees will be slightly flexed for the most part of the form then the right leg will extend itself when finishing the stroke. Foot placement is an important aspect of a tennis stroke, when performing a backhand the right leg will be before the left leg and the weight will be shifted from the left to the right foot. Throughout this whole movement there is a low diagonal plane of motion.
In my opinion to have an efficient movement the body has to be stabilized while rotating the hips and shoulder and following through after contact with the ball has been made. Having a solid grip, good foot work and good preparation for a backhand is also key.
In order to achieve proper execution of the backstroke, the swimmer must begin in a supine position. For the initial position the glenohumeral joint of the shoulder must be flexed and slightly externally rotated with the elbow completely extended. At this point the fifth phalange should be inferior to the first digit and in contact with the water. In addition, in the catch phase (first part of the power phase), the arm and hand enters downward starting with the fifth metatarsal first then flexing slightly at the elbow catching the water while moving anteriorly with the phalanges adducted.Once the catch is made the flexed elbow should move anteriorly pulling the body through the water and extending simultaneously to end up at the side of the body.During the finish phase, the forearm should pronate and begin to come out of the water with the fifth metatarsal first ready to continue to the recovery phase. Finally, the recovery phase consists of the final semi circle returning the hand to its original position superior to the head.
Coordination between upper body and lower body is key to successful execution of all swimming strokes.Furthermore, many swimmers flex their tibio-femoral joint along the too much while kicking; this is considered kicking from the knee. Therefore, this creates large amounts of drag and causes swimmer's legs to sink low in the water. Instead of kicking from the knee one should kick from the hip with a relatively extended leg. Also, one should keep the legs extended and move them simultaneously up and down. It is best not to think about flexing the knee at all, instead think about kicking from the hip at the iliofemoral joint with an extended leg and a very slight flexion of the knee; it will happen naturally.When one swims one should always have the ankle plantar flexed. Not pointing the toes down and keeping the ankle in dorsi-flexion will push water anteriorly when one kicks, slowing the velocity dramatically.
In order to achieve proper execution of the backstroke, the swimmer must begin in a supine position. For the initial position the glenohumeral joint of the shoulder must be flexed and slightly externally rotated with the elbow completely extended. At this point the fifth phalange should be inferior to the first digit and in contact with the water. In addition, in the catch phase (first part of the power phase), the arm and hand enters downward starting with the fifth metatarsal first then flexing slightly at the elbow catching the water while moving anteriorly with the phalanges adducted.Once the catch is made the flexed elbow should move anteriorly pulling the body through the water and extending simultaneously to end up at the side of the body.During the finish phase, the forearm should pronate and begin to come out of the water with the fifth metatarsal first ready to continue to the recovery phase. Finally, the recovery phase consists of the final semi circle returning the hand to its original position superior to the head.
Coordination between upper body and lower body is key to successful execution of all swimming strokes.Furthermore, many swimmers flex their tibio-femoral joint along the too much while kicking; this is considered kicking from the knee. Therefore, this creates large amounts of drag and causes swimmer's legs to sink low in the water. Instead of kicking from the knee one should kick from the hip with a relatively extended leg. Also, one should keep the legs extended and move them simultaneously up and down. It is best not to think about flexing the knee at all, instead think about kicking from the hip at the iliofemoral joint with an extended leg and a very slight flexion of the knee; it will happen naturally.When one swims one should always have the ankle plantar flexed. Not pointing the toes down and keeping the ankle in dorsi-flexion will push water anteriorly when one kicks, slowing the velocity dramatically.
Tennis backhand:
ReplyDeleteWhen observing a backhand swing in tennis it is noted that the transverse plane is being emphasized, in the upper portion of the body the shoulders will rotate along the vertical axis while keeping the head strait, eye on the ball and keeping a strong diaphragm. When talking about left back hand it is shown that while the right hand is being swung backwards it is also being flexed while keeping a straight forearm without flexion or extension of the wrist, then when it comes to the front of the body it is being extended.
For the lower half of the body, the hips are being rotated along the vertical axis. For a back hand to have power it is essential to have proper balance and stability which is a key component of the legs, the knees will be slightly flexed for the most part of the form then the right leg will extend itself when finishing the stroke. Foot placement is an important aspect of a tennis stroke, when performing a backhand the right leg will be before the left leg and the weight will be shifted from the left to the right foot. Throughout this whole movement there is a low diagonal plane of motion.
In my opinion to have an efficient movement the body has to be stabilized while rotating the hips and shoulder and following through after contact with the ball has been made. Having a solid grip, good foot work and good preparation for a backhand is also key.
Swimming Backstroke
ReplyDeleteIn order to achieve proper execution of the backstroke, the swimmer must begin in a supine position. For the initial position the glenohumeral joint of the shoulder must be flexed and slightly externally rotated with the elbow completely extended. At this point the fifth phalange should be inferior to the first digit and in contact with the water. In addition, in the catch phase (first part of the power phase), the arm and hand enters downward starting with the fifth metatarsal first then flexing slightly at the elbow catching the water while moving anteriorly with the phalanges adducted.Once the catch is made the flexed elbow should move anteriorly pulling the body through the water and extending simultaneously to end up at the side of the body.During the finish phase, the forearm should pronate and begin to come out of the water with the fifth metatarsal first ready to continue to the recovery phase. Finally, the recovery phase consists of the final semi circle returning the hand to its original position superior to the head.
Coordination between upper body and lower body is key to successful execution of all swimming strokes.Furthermore, many swimmers flex their tibio-femoral joint along the too much while kicking; this is considered kicking from the knee. Therefore, this creates large amounts of drag and causes swimmer's legs to sink low in the water. Instead of kicking from the knee one should kick from the hip with a relatively extended leg. Also, one should keep the legs extended and move them simultaneously up and down. It is best not to think about flexing the knee at all, instead think about kicking from the hip at the iliofemoral joint with an extended leg and a very slight flexion of the knee; it will happen naturally.When one swims one should always have the ankle plantar flexed. Not pointing the toes down and keeping the ankle in dorsi-flexion will push water anteriorly when one kicks, slowing the velocity dramatically.
Swimming Backstroke
ReplyDeleteIn order to achieve proper execution of the backstroke, the swimmer must begin in a supine position. For the initial position the glenohumeral joint of the shoulder must be flexed and slightly externally rotated with the elbow completely extended. At this point the fifth phalange should be inferior to the first digit and in contact with the water. In addition, in the catch phase (first part of the power phase), the arm and hand enters downward starting with the fifth metatarsal first then flexing slightly at the elbow catching the water while moving anteriorly with the phalanges adducted.Once the catch is made the flexed elbow should move anteriorly pulling the body through the water and extending simultaneously to end up at the side of the body.During the finish phase, the forearm should pronate and begin to come out of the water with the fifth metatarsal first ready to continue to the recovery phase. Finally, the recovery phase consists of the final semi circle returning the hand to its original position superior to the head.
Coordination between upper body and lower body is key to successful execution of all swimming strokes.Furthermore, many swimmers flex their tibio-femoral joint along the too much while kicking; this is considered kicking from the knee. Therefore, this creates large amounts of drag and causes swimmer's legs to sink low in the water. Instead of kicking from the knee one should kick from the hip with a relatively extended leg. Also, one should keep the legs extended and move them simultaneously up and down. It is best not to think about flexing the knee at all, instead think about kicking from the hip at the iliofemoral joint with an extended leg and a very slight flexion of the knee; it will happen naturally.When one swims one should always have the ankle plantar flexed. Not pointing the toes down and keeping the ankle in dorsi-flexion will push water anteriorly when one kicks, slowing the velocity dramatically.