bending knees really helpful?

i always hear bending knees is soo important....what i wanna now is what it helps you with and while hitting a forehand and bending knees how long are you supposed to keep yor knees bent????
 

dacrymn

Professional
Yeah, it's really important. It not so much the knees bending part as pushing into the shot. You're supposed to bend your knees, and push UP into your shot. Don't keep them bent through your shot. "sit and lift," James Blake once said.
 

shindemac

Hall of Fame
Sit and lift is a phrase you'll often hear from coaches. Bending the knees is the sit part, but you also need the lift part. I guess it's assumed when people say bend your knees, you understand this is part of your stroke.

Even if you don't use it as part of your stroke, it's still good for balance, being in an athletic stance, and for low balls. The athletic stance is very similar in basketball. When u guard someone on defense, you always bend your knees and stay very low. Your center of gravity is lower, and you'll able to use your leg muscles more. Basically, whoever is lower will get the first step and blow past the other person. Even if the dribbler is standing tall, you still need to stay low. So you can see how staying low is very important for agility. You can try moving while standing straight up like a bean pole. Try running with both of your arms still at your side, and try using only your lower legs to move, meaning your calf muscles. Besides looking silly, you'll find how inefficient it is to run like this without bending your knees. If u run like this, then it probably means you didn't play any sports. Like I said, this is a very inefficient way to run, move, and change directions.
 

boojay

Hall of Fame
Try running with both of your arms still at your side, and try using only your lower legs to move, meaning your calf muscles. Besides looking silly, you'll find how inefficient it is to run like this without bending your knees.

If you don't like my penguin dance, so be it!!
 

ubel

Professional
Bending your knees is good because it gets your body down to where the ball is in your ideal hitting zone, making hitting the ball more comfortable. If you're more comfortable, you'll feel freer to hit through the ball with more power and spin. By crouching you're also lowering your center of gravity which helps you to maintain your balance easier. This is similar to getting the ball into your strike zone in that it allows you to focus more on what you're doing with the ball rather than keeping your body from falling over if you were to try and bend over at the back for a shot. It's also better for your posture and makes you look very cool:

wiki_fed-wimb2005low.jpg


However, it takes time and deliberate practice to learn how to crouch on every shot, and it won't happen naturally until you've practiced doing it for a while. Best of luck tho :D
 

tbini87

Hall of Fame
bending your knees help you put more power into shots, help you react faster side to side to an opponents shot (especially the serve), and helps you get low balls and half volley with more consistency. like stated above, you don't play defense in basketball with your knees straight.
 

gmgpistons

New User
I feel like when I bend my knees and get my lower body more involved I am able to hit deeper shots, more powerful shots. It also makes things a little easier on the arm if you get your legs into the shot.
 
Sit and lift is a phrase you'll often hear from coaches. Bending the knees is the sit part, but you also need the lift part. I guess it's assumed when people say bend your knees, you understand this is part of your stroke.

Even if you don't use it as part of your stroke, it's still good for balance, being in an athletic stance, and for low balls. The athletic stance is very similar in basketball. When u guard someone on defense, you always bend your knees and stay very low. Your center of gravity is lower, and you'll able to use your leg muscles more. Basically, whoever is lower will get the first step and blow past the other person. Even if the dribbler is standing tall, you still need to stay low. So you can see how staying low is very important for agility. You can try moving while standing straight up like a bean pole. Try running with both of your arms still at your side, and try using only your lower legs to move, meaning your calf muscles. Besides looking silly, you'll find how inefficient it is to run like this without bending your knees. If u run like this, then it probably means you didn't play any sports. Like I said, this is a very inefficient way to run, move, and change directions.


This is entirely correct. I play both sports and since strengthening my quads (and being able to stay lower) I play better tennis AND am able to guard a guy at the top of the circle better.

Also, the one obvious reason for some knee bend is that for last minute corrections, you can go up or down - wioth straight legs, you can only go down!;)

For great strenthening of legs which is ideal for tennis, try the elliptical trainer - it never lets you relax your quads.
 

Curious

G.O.A.T.
Shoulder height contact forehand with your knees quite bent vs same with legs straight. Both are shoulder height but with the former you have a much better chance of hitting a good forehand, right? Interesting!
 

enishi1357

Semi-Pro
It's a mental trick. By telling yourself to bend your knees, if you lose, you can tell yourself you did everything you can and the opponent is just better than you.
 

nyta2

Hall of Fame
i always hear bending knees is soo important....what i wanna now is what it helps you with and while hitting a forehand and bending knees how long are you supposed to keep yor knees bent????
hehe 15y old thread, and i'm still making obvious mistakes (i tend not to load... still need to remind myself to do it)
for a while i used to load & hold... which wasn't as useful as the effort required
but later realized it was another way to leverage the SSC, so the load is more like a moment/pulse in the middle of the swing (eg. around the time i "pat the dog" is when i load/bend)... but its taking me some time to get used to doing it for every shot (changes my timing slightly, and previously i didn't have the conditioning to do it consistently)
 

Pumpkin

Professional
OMG don't you know why you are bending your knees? It's to rise up and unleash power into the shot. It's just a common athletic movement. What are you going to do if you are sprinting? Keep your legs straight?
 

nyta2

Hall of Fame
OMG don't you know why you are bending your knees? It's to rise up and unleash power into the shot. It's just a common athletic movement. What are you going to do if you are sprinting? Keep your legs straight?
duh. knowing and doing are not the same thing, especially when your opponent has a say.
 

ChaelAZ

G.O.A.T.
Does it help, yes.
Is it important and going to change your game, depends.

All other things set in your stroke or serve, using knee band to add force up into the stroke or serve is free power. However, if you have a late contact point, not enough spacing, or any other number of hitches, trying to focus on knee bend is not going to do as much to improve your stroke or serve as fixing those first, in my opinion.
 

Curious

G.O.A.T.
OMG don't you know why you are bending your knees? It's to rise up and unleash power into the shot. It's just a common athletic movement. What are you going to do if you are sprinting? Keep your legs straight?
Don’t be that certain!
Maybe it’s the wide base and lower centre of gravity. It’s so crucial to have solid balance while hitting the ball.
 

ballmachineguy

Hall of Fame
Don’t be that certain!
Maybe it’s the wide base and lower centre of gravity. It’s so crucial to have solid balance while hitting the ball.
Correct. If you hit with straight legs, the force of the swing will throw off your balance and have you doing things with muscles that normally would be doing something else, or be relaxed, but now have to counter swing forces. If you get a nice knee bend and low COG, your swing smoothes out no matter how hard you swing.
 

Curious

G.O.A.T.
Correct. If you hit with straight legs, the force of the swing will throw off your balance and have you doing things with muscles that normally would be doing something else, or be relaxed, but now have to counter swing forces. If you get a nice knee bend and low COG, your swing smoothes out no matter how hard you swing.
Keeping knees really bent gives me some sort of confidence as if I’m more in control of the situation. I mean during the point in general, not only while I’m hitting the ball. It’s interesting, can’t quite explain it.
 

ballmachineguy

Hall of Fame
Keeping knees really bent gives me some sort of confidence as if I’m more in control of the situation. I mean during the point in general, not only while I’m hitting the ball. It’s interesting, can’t quite explain it.
There is definitely a weight shift on almost any stroke. You can’t really push off of a straight leg like you can when bent.
 

Pumpkin

Professional
I don't really understand what we are talking about here. It's obvious you have to bend your knees, isn't it? Or is someone contesting that?
 

Curious

G.O.A.T.
I don't really understand what we are talking about here. It's obvious you have to bend your knees, isn't it? Or is someone contesting that?
Well, most rec players don’t bend their knees enough. You agree with that or not?
 

Pumpkin

Professional
Well, most rec players don’t bend their knees enough. You agree with that or not?
Probably. Depends on the level I guess. I'm just afraid people will start bending their knees for the sake of it, like they are doing squats at the gym. You have to coil and uncoil with the bend. If done properly, there is very little strain on the leg muscles, unlike performing squats.
 

Curious

G.O.A.T.
Probably. Depends on the level I guess. I'm just afraid people will start bending their knees for the sake of it, like they are doing squats at the gym. You have to coil and uncoil with the bend. If done properly, there is very little strain on the leg muscles, unlike performing squats.
Again I believe the benefit comes from the solid wide base when you bend your knees. It takes extra effort and strength which rec players are not quite willing to do as you know.
 

nyta2

Hall of Fame
Probably. Depends on the level I guess. I'm just afraid people will start bending their knees for the sake of it, like they are doing squats at the gym. You have to coil and uncoil with the bend. If done properly, there is very little strain on the leg muscles, unlike performing squats.
you're right, it's not about bending for the sake of bending... it's about the load/unload.
i'd say 95% of the rec players under 5.0 do NOT do the coil/uncoil consistently (the 5% being the upper 4.5 folks).... mainly because it requires both the technique&timing (and even spacing) to do it, as well as the conditioning to continually do it.
(so definitely not as obvious as you make it out to be for most folks... actually many folks that do bend will do a "bend & wait" (or minimal bend weight xfer) vs. a quick but deliberate load/unload taking advantage of SSC, etc...)
a while ago i took a lesson with this guy,
and all we worked on was the coil/uncoil, i only lasted like 20m in a cooperative hit before getting tired.

so when i said i still have to remind myself to do it... 6mos ago i would have only lasted 10-15m in a continuous cooperative hit, because i was 40lbs heavier... so i developed a habit of "conserving" energy (by not coiling & uncoiling consistently as much as i could... vs just doing a weight xfer with a mild "knee" bend)...
 
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Pumpkin

Professional
you're right, it's not about bending for the sake of bending... it's about the load/unload.
i'd say 95% of the rec players under 5.0 do NOT do the coil/uncoil consistently (the 5% being the upper 4.5 folks).... mainly because it requires both the technique&timing (and even spacing) to do it, as well as the conditioning to continually do it.
(so definitely not as obvious as you make it out to be for most folks... actually many folks that do bend will do a "bend & wait" (or minimal bend weight xfer) vs. a quick but deliberate load/unload taking advantage of SSC, etc...)
a while ago i took a lesson with this guy,
and all we worked on was the coil/uncoil, i only lasted like 20m in a cooperative hit before getting tired.

so when i said i still have to remind myself to do it... 6mos ago i would have only lasted 10-15m in a continuous cooperative hit, because i was 40lbs heavier... so i developed a habit of "conserving" energy (by not coiling & uncoiling consistently as much as i could... vs just doing a weight xfer with a mild "knee" bend)...
Good lesson. Thanks.
 

dkmura

Professional
Don't forget how important a good knee bend is to your serve. It's integral to the kinetic chain that produces a serve with good pace, spin and placement.
 

socallefty

G.O.A.T.
I also think that you can’t coil/uncoil, load your hips etc. to use the body’s kinetic chain without bending your knees. So, the players who don’t bend their knees much likely arm the ball and don’t use the power of their body. Also, if you want to hit with a lot of topspin, you have to start your swing low and it is easier to do it by bending your knees. If you try to get low without bending your knees, you have to bend your chest forward and that likely makes it difficult to be in balance especially if you try to coil/uncoil your body.
 

a12345

Professional
Heres a funny story about Richard Williams by Rick Macci


Basically he wasnt happy with the amount of knee bend by Venus and Serena, so he made them cut the lawn using a pair of scissors as punishment.
 

johnmccabe

Hall of Fame
Heres a funny story about Richard Williams by Rick Macci


Basically he wasnt happy with the amount of knee bend by Venus and Serena, so he made them cut the lawn using a pair of scissors as punishment.
No punishment is allowed anymore in any education and training these days in US, it seems...
 

McGradey

Hall of Fame
And here is arguably the best player of all time hardly bending his knees.


Sure, but in play, how often does he get fed a ball directly into his forehand slot at a comfortable pace like that? He's just standing there, redirecting. Can you run up to the service line from the baseline and hit a good forehand without bending your knees?
 

Pumpkin

Professional
Sure, but in play, how often does he get fed a ball directly into his forehand slot at a comfortable pace like that? He's just standing there, redirecting. Can you run up to the service line from the baseline and hit a good forehand without bending your knees?
Possibly I could. I'm arguing that bending the knees is not necessary to hit a technically sound shot. My proposal is that bending the knees is done to inject more power into the stroke?
 
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