Dribbling the Basketball While Running

Basketball as a sport can be made to look so easy. We watch Lebron James dribble the ball down the right side of the court while he surveys the positions of his team mates and the opposition. Suddenly he breaks left toward the basket, switching his dribble to his left hand, one more step and one more bounce then he switches back to the right hand as he elevates for the dunk.

Not once in this sequence does he look at the ball (until it is going through the hoop). As he does each movement, including side steps and head fakes, he keeps the ball bouncing slightly out in front and to the side, positioned ready for the next spectacular play.

Dribbling the ball is an essential part of basketball. A player that can dribble with confidence and control will have more options to attack the basket and get good looks to shoot a jump shot or attack the basket for a lay up or dunk.

We collected some video of a player running and dribbling the ball with his right hand, as well as some close up video of the players hand while he bounces the ball while standing.

We set up the video camera on the side of the court so we could watch the player run through the camera field of view. This allows us to see where he bounces the ball as he runs through. If the player ran toward the camera we would be unable to determine how far in front he pushes the ball.

The close up video of the hand will show a good example of how to bounce the ball in the dribble.

1. A correctly inflated basketball should bounce most of the way back up to your hand if you simply dropped it. You only need to push the ball down with enough force to get it back to your hand. Push too hard and the ball will bounce higher than expected and you may lose control.
2. Bounce the ball off your spread fingers. You do not want to push down with your palm. Allow your fingers to feel for the ball as it bounces up and then spread your fingers and push down on the ball for the next bounce. Push down by bending flexing (bending) your wrist.
3. Keep your head up surveying the court and position of your team mates and the opponents. You should do this whether you are running with the ball or simply standing still.
4. Keep your legs slightly bent and be ready to make your move. You do not want to be caught back on your heals as you are dribbling the ball as this makes it easier for an opponent to steal the ball. Be in a position ready to move.
5. Although we do not show this in the video, you should learn to dribble with both hands and on both sides of your body. This will allow you more options when driving toward the basket or preparing for a pass.

Now take a look at our player in the first part of the video as he runs at 3/4 speed while dribbling the ball. Dribbling while running fast can put your opponent off balance and create room for yourself and your team.

Here are a few tips to keep in mind when dribbling and running:

1. Once again, do not look down at the ball. You need to trust that the ball will bounce where you want it. This may be difficult at first but will come with practice. When running and dribbling it is even more important to keep your head up and see the court and be prepared to change direction quickly.
2. Bounce the ball far enough out in front of you so that you do not need to check your run to keep control of the ball. Many a fast break will come to nothing if you need to slow down to get control of the ball.
3. Bounce the ball out a little to the side. If you are dribbling with your right hand keep the ball a little outside and far enough in front of your right leg. If you bounce the ball directly in front of you then you will have more difficulty controlling it as you run. Of course if you are about to cut in toward the basket then you will need to bounce the ball in front of your body, but then you will also be turning your body or switching dribbling hands and will still be keeping ball slight outside your legs.
4. Once again use your fingers to bounce the ball and push it out in front of you. Do not use your palm as you are likely to lose control and probably the ball if you are running fast.

Practice will help you learn any new skill or get better at it. The more you practice the easier you will find the skill as your muscles and body learn what to expect and anticipates the limb movement and muscle action required.

We often say watch video of pros and of yourself and then practice with this in mind. Watching pros allows you to see how it should be done. Watching yourself ensures you know how you compare to these pros. Both are important. If you practiced all day but had no idea what you were doing wrong, you could teach your body to perform the skill incorrectly.

With video technology today there is no reason why you cannot easily assess your own performance. Take a look at previous articles in this website to find more tips on filming yourself or how to do specific skills.

Happy Holidays

Video Analysis of the Basketball Free Throw

We know why you visit our blog, to learn how to capture and analyze sports performance. Today we present our first videos and some biomechanical analysis done with free video analysis software.

Before we begin, we want to remind you that our intention is to show you the tools you can use for the video analysis of sports. We are biomedical engineers who have done research and work in sports performance analysis, but no one can be an expert on all sports. Therefore, although our biomechanical analysis is correct, our coaching tips (which we will minimize) should be evaluated with a professional coach in the appropriate sport, and must be evaluated on an athlete-by-athlete basis.

With the NCAA basketball tournaments about to begin and the regular season of the NBA about to end, we know many of you are spending a lot of time either watching or playing basketball. In honor of March Madness, our videos this week are of a basketball free throw. We have video of two subjects with very different techniques shooting a free throw. We have set up our camera on the side of the subject, as we wanted to evaluate the subjects ball release angle.
The two videos can be seen below. Notice that both the free throw shooters are right-handed therefore it would have been more appropriate for us to shoot the video from the other side of the court, so that we would have a clear view of the right arm. However, in this case, lighting conditions and other background interference meant that shooting from the left side of the athlete would result in a sharper image to analyse. We were, however, lucky that in both videos we can see enough of the shooting arm and ball to evaluate the release angle that we are interested in.





With these two independent videos there is already so much we can analyze. We can see that Subject 1 jumps quite high off the ground for his free throw and also falls forward, while Subject 2 goes up on his toes. As the camera was set up in almost the same position, we can immediately notice that Subject 2 is quite a bit taller than Subject 1 and we can take that into account in our assessment. Subject 1 is jumping in order to gain more height on his free throw. This is causing the ball to come out of his hand at a flatter angle.

A feature of many free video analysis software is that we can compare two subjects side by side. When comparing 2 subjects, it is important to also synchronize the video to a specific event. In our comparison video below, we have synchronized the two subjects' free throws at the point of ball release. We need to synchronize video for comparison because not all videos are the same length, as some subjects may take longer to shoot their free throw than others. If we tried to analyze two videos of free throws that were not synchronized, we would have a very difficult time ensuring that we could see both subjects releasing the ball at the same time. The free video analysis software we used allows us to synchronize side by side video, but not to save it out as an avi. We therefore used a well-known video analysis software to create the synchronized view you see below:



If you are a basketball coach, you can probably see a few things that can be improved for both

Subject 1 and Subject 2. Please send us your comments or coaching tips if you have suggestions.
We however are going to suggest some improvements for subject 1 based on a little bit more video analysis we did with a free video analysis software package.





Here are two freeze frame images of Subject 1 (top) and Subject 2. Using free video analysis software, we have calculated the angle of release for both subjects, and zoomed in on their arms and the ball at this release point. Subject 1 released the ball at 48 degrees to horizontal while Subject 2 released the ball at 79 degrees to the horizontal.

Now for some basic physics. The diameter of the basketball rim should be exactly twice the diameter of the basketball. In other words, two basketballs can fit through the hoop at the same time (if everything is perfect and there is no net). During a free throw or any basketball shot from the outer court, we are throwing the ball on an arc. The ball needs to move forward as well as up (for most of us) to get it into the net. The ball can either move on a flatter arc (Subject 1) or on a steeper arc (Subject 2). On a flatter arc the ball will not go as high but will move forward further and quicker; on a steeper arc, the ball will go higher and not as far. This means a free throw on a steeper arc will come down straighter and take advantage of the size of the basketball rim, while a flatter free throw will need to be far more accurate as a ball moving forward is more likely to hit the rim.

Subject 1 should try to put his free throw on a higher arc to take advantage of the physics described above. He can see immediately from this video analysis that his free throw is at a 30 degree flatter angle at release than Subject 2 and while practicing his free throws, should concentrate on releasing the ball on a higher angle. Once Subject 1 has some time to practice, we will get another video of him and see how he has improved.

Hope you enjoyed this first full Video Analysis. Remember that you too can do this type of in-depth analysis. All you need is a video camera and a little understanding. Follow us to get more tips, tricks, and understanding in using your video camera to analyze different sports.

We are happy to answer any questions or hear from you, please leave us a comment.