Does it have to do with the angle of the racquet upon contact with the ball or does it have more to do with shoulder rotation?
217203
if you wanna hit a cross  you should hit the ball a bit sooner in front of your body but for down the line you should hit it a bit later.\nremember you can move the ball from a side of a court to other side just by 19 degrees so becareful about the angel.
396198
Increase your elevation or find a court with less gravitational force.   It's  a physics thing.
62965
Are you talking about bumping? You use the arms because your "platform" is larger, wider, flatter than the hands. This helps with accuracy and control. When standing you are able to easily carry a ball on your arms or platform. Try this on your hands. Not so easy.
234363
First, make sure you've got a spot when you are doing this.  My coach would make a noise (ex. Clap, or yell Twist or Now) when it was time for me to start turning.  I had the same problem you had for a long time! Make sure when you are twisting that your hips are twisting.  It can't just be an upper body motion. Make sure you throw your hips too.  Also, don't start looking for the ground too early.  If your head stops "looking" with the rotation, your body will stop rotating.  How are you throwing your arms to activate the full?  There are many many ways to do it, such as, when I started, I always kept my right arm straight in the air by my head, threw my left arm to my right hip, and turned my head into my right arm, so that I was basically looking through my armpit.  Some coaches want both arms thrown, so I did left arm to right hip, right arm to middle of my back, and head to the right. However your coach has you doing it, make sure that you are not unwrapping too soon.  If you unwrap your arms too soon, it will stop your rotation, just like if you stop looking with your head. Last thing.  Don't let your mind freak you out.  Yes, you are doing a full rotation while you are upside-down, but this is a huge accomplishment!  Don't think of the magnitude of the skill, think of the fact that you are doing so well! Good luck and let me know if you need anything else!
664899
Tennis racquets are of a somewhat oval shape while racquetball racquet are much shorter and have a flattened top.\n\nPicture of a tennis racquet:\nhttp://www.ideal.co.nz/site/ideal/images/stickandwin/19_Ultra_LT_Tennis_Racket_WITRCS510.jpg\n\nPicture of a racquetball racket:\nhttp://www.racquetworld.com/merchant2/graphics/product_pictures/racquets/triadt170sm.jpg\n\nWhile a tennis racquet could be used in a game of racquetball, a real racquetball racquet should be used if you have any desire to pursure the game any further. \n\nGo ahead and play a game of racquetball with your friend using tennis racquets, but beware that prolonged use of them in a racquetball game could damage them. Racquetballs are much heavier than a tennis ball and could cause frame fractures and/or damage to the strings. \n\nIt's ok to improvise, but use the equipment designed for the game if you do it frequently.\n\nEDIT:In response to the ball part, you can use a tennis ball if you would like, if the place where you go to play allows it. My local YMCA did not allow tennis balls in the raquetball courts. Again, don't use a tennis ball if you are playing with people other than your friends, as a tennis ball would not be allowed on any sort of competitive level.\n\nNot your question, but you shouldn't do the reverse - that is use a raquetball on a tennis court. The surface of a (hard court) tennis court is very rough and would damage the rubber raquetball very quickly.
166354
The reason why you hook the ball is because you use too much power to drive the ball , or your club face is closed during impact.
591915
When you slice, you need your racquet head in front of your body. If you bring your racquet face behind your body you'd slice the ball to high/long. Usually, your racquet face should be going toward the direction where you'd like to slice.\n\nOn average club level, a slice can be effective b/c most club players don't bent their knees correctly when they try to return a slice. On pro levers, a slice is mostly used on approching shots on a short ball or a defensive shot.\n\nThe key to hit a slice is to keep the ball away from your body instead of hitting the ball near your body. Also, your racquet face has to be in front of your body in order to return the hard groundstrokes from your opponent.
33731
Upright Row is a terrible exercise and you should avoid it at all costs regardless of shoulder pain.  If you have rotator cuff damage, then benching with a bar will only make it worse.  Stick to dumbells\n\nPlease review this link:\nhttp://preventdisease.com/fitness/sportinjuries/articles/rotatorcuff.html
542743
Yep racquet technology is definitely a major reason- maybe the biggest reason.  Don't forget though that, just like in pretty much every other sport, athletes participating in tennis have gotten faster, stronger, better conditioned, etc. over the years  serves, volleys, returns, etc have all increased an incredible amount due both to lighter racquets and stronger athletes generating more power; tennis players also dedicate more time to their sport, start playing increasingly younger (for better or worse like in many sports), practice game situations, drills (for increasing power and speed to make more returns), etc, etc.  Another thing to consider is that in the early days, only a very few people participated in tennis; nowadays you have far more people playing the game thus drawing athletes from a far greater pool of players where the best players have far more skill and talent than previously.  I would also suggest that, just as lighter racquet technology has vastly sped up the game, tennis balls have also probably been "improved" over time to produce more bounce/speed, to last longer, etc.  The only other factor I could also possibly think of, although I'm only speculating here, is that various tennis surfaces have gotten "faster" over time  too due to new technologies in creating "hardcourt" surfaces, mowing  techniques and caring for grass courts, etc.
667431
well I have a pure drive and I can tell you one thing. It packs a freaking punch, its good for drives as the name suggests, as for the spin, I think the racquet is a factor, but there is a technique to it! you have to point your racquet lower so when you hit back up, you can brush the ball alot more!\n\nGood luck with the season!
607122
Sometimes this comes from having problems with topping the ball.  Your over powering with your right side.  When you do that you get those bone jarring divots.  You want equal power.  Swing once with just your left arm and than the right and you will see.  Make sure your elbow does not fly.  Pretend like you have a towel or something under your right side arm pit.  You don't want to let if fall out so you have to keep the arm close to your body.  I have a lot of great links to tips to help out on my blog roll.  Good Luck .
473474
I dont have a website, but im sure youll appreciate some tips. Remember, its all about the physics of the motion. To curve a ball, the motion of your legs must be circular, and you must make contact at the base of the ball, at the corner nearest to your foot. You MUST swing through to create that continuous motion. (very important) You will then see the ball spinning towards the OPPOSITE direction you struck it from.\nIn order to practise this, you have to practice without much strength for a start. As you practice more, you can add more power. Should you reach that stage, your point of contact must be even lower.\nAll the best
612994
Check you right elbow on your downswing. You could be bringing it closer to your body causing you to open the club face. I developed a simular slice a few years ago and a shoulder problem was causing me to bring my right elbow in, causing the slice. My shoulder muscles was not keeping the ball in the socket properly.\n\nA simple exercise of using a 1lb can of Veggies solved the shoulder problem. I would bend forward at the waist and extend my right arm down. Then raise the can until it was almost under my armpit.\n\nAfter solving the shoulder problem the club pro helped me stop the habit of drawing my elbow in. That low slice went away. I still slice the ball at times, but they now have some nice loft.
333967
ok...there are collisions between the ball and the players.  These collisions cause impulses (changes in momentum) which the players do their best to control in order to accurately change the direction and speed of the ball.  See the link if you don't understand any of these terms.
142722
The major upper body muscles involved in swinging a tennis racquet are the pectoralis major, latissimus dorsi, and deltoids of the torso, and the biceps and triceps of the arms. While the basic strength training program addresses these muscles individually, it may be advantageous to work some of the groups together. This is best accomplished by doing pushing and pulling exercises such as bench presses, seated rows, overhead presses, and pulldowns.\n\nThe bench press is a popular pushing exercise that strengthens the pectoralis major and triceps muscle at the same time. Conversely, the seated row is an effective pulling exercise that works the opposing latissimus dorsi and biceps muscles simultaneously.\n\nOne of the best means for training the shoulder and triceps muscles together is the overhead press. The counterpart to this exercise is the pulldown that involves both the latissimus dorsi and biceps muscles.\n\nReplace the chest cross, pullover, lateral raise, biceps curl and triceps extension exercises with the bench press, seated row, overhead press, and pulldown exercises. These provide a more comprehensive upper body workout that may have more practical benefit in terms of power production.
504373
When you add lead to your racquet the problem is is that it puts your racquet off balance in general it is good to add lead to your racquet if you know where to put it for specific conditions. Lead will let you hit harder returns with less effort but will not give you control. I do not recommend adding lead to a racquet unless you know what you are doing because by adding lead you are throwing your racquet off balance making the racquet more or less head light or heavy which means the racquet will not play the same.
63191
At contact during a topspin groundstroke I am much closer to flat than I am closed.  My main focus is more about solid contact than worrying about my racket angle.  The sound the ball makes coming off the strings will tell me immediately if the shot was properly executed.  I meet the ball opposite my leading hip on the forehand and about 6 to 12 inches in front of my leading hip on the backhand side.