Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Biomechanical Analysis of Basketball Layup

No description
by

Terri Publicover

on 3 April 2014

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Biomechanical Analysis of Basketball Layup

Biomechanical Analysis of Basketball Layup
By: Jodi Hutton, Natalie Clos,
Terri Publicover


Building a force by using the arms, hips, knees, and ankles and applying the appropriate amount of this force in the direction of the hoop at the correct angle resulting in the ball going through the basket.

Plane of Motion/ Axis of Rotation
1. Whole Movement:

Sagittal Plane about Transverse Axis
2. Individual Body Parts


Neck

Movement
-Extension Hyperextension

Where?

Sagittal Plane about Transverse Axis

Joints?

Atlanto-axial = Pivot joint

Muscles?
Sternocleidomastoid

Left Shoulder on Right Hand Layup

Movement
- Extension Flexion

Where?
Sagittal Plane about Transverse Axis

Joints?
Glenohumeral = Ball & Socket
Joint

Muscles?
Deltoid, Pectoralis Major






Right Shoulder on Right Hand Layup

Movement
- Extension Hyperextension

Where?

Sagittal Plane about Transverse Axis

Joints?
Glenohumeral = Ball & Socket Joint

Muscles?
Deltoid, Pectoralis Major

Left Elbow on Right Hand Layup

Movement
- Flexion Extension

Where?
Sagittal Plane about Transverse Axis

Joints?
Humeroulnar = Hinge Joint

Muscles?
Bicep Brachii, Brachialis

Right Elbow on Right Hand Layup

Movement
- Flexion Extension

Where?

Saigittal Plane about Transverse Axis

Joints?
Humeroulnar = Hinge Joint

Muscles?
Bicep Brachii, Brachialis

Left and Right Radioulnar

Movement
- Pronation

Where?
Sagittal Plane about Transverse Axis

Joints?
Superior Radioulnar = Pivot Joint

Muscles?
Pronator Teres

Left Wrist on Right Hand Layup

Movement
- Extension

Where?
Sagittal Plane about Transverse Axis

Joints?
Radiocarpal = Condyloid Joint

Muscles?
Extensor Digitorum Communis




Right Wrist on Right Hand Layup

Movement
- Hyper extension Flexion


Where?
Sagittal Plane about Transverse Axis

Joints?
Radiocarpal = Condyloid Joint

Muscles?
Flexor Digitorum Superficialis

Left Fingers on Right Hand Layup

Movement
- Extension

Where?
Sagittal Plane about Transverse Axis

Joints?
Metacarpophalangeal = Condyloid Joint

Muscles?
Extensor Digitorum


5 Phases of Movement








Right Fingers in Right Hand Layup

Movements
- Flexion Extension

Where?
Sagittal Plane about Transverse Axis

Joints?

Metacarpophalangeal= Condyloid Joint

Muscles?
Flexor Digitorum Profundus


Phase 1: Preliminary Movements
Face body towards the hoop, on an angle creating a path towards the right side of the hoop.
Hold the ball in front of you.
Hips, knees, and ankles flexed.



Phase 2: Back swing or Recovery Movements
Run towards the basket on an angle by taking two steps with out a dribble.
First step with the right foot, second with left(planting left foot).
Flexion in the hips, knees and ankles.
Increasing momentum
Hyperflexion of shoulders and flexion of the elbows brings ball up above head in direction of the basket.
Phase 3: Force Producing Movements
Sequence of forces during take off of left planted foot.
Flexion of the right hip and knee as the right knee drives up off the ground creating a force.
Planted left foot plantar flexes
This force lifts the body off of the ground in the direction of the basket.
Right arm fully extends upwards with ball in finger tips. Left arm extending down.
Phase 4: Critical Instant
The moment the ball leaves the tips of the players fingers towards the backboard.
Control the force and momentum created by the body to exert a light,gentle force against the backboard of the basket.
Keep eyes fixed on the backboard as the wrist flexes to release the the ball in the direction of the backboard at the correct angle.
Phase 5: The Follow Through
Slowing down the body for landing.
Shooting arm extends and is brought down from above the head.
Hips, knees, ankles flex at landing to absorb the energy.
Movement
- Extension Flexion Hyperextension

Where?
Sagittal Plane about Transverse Axis

Joints?
Coxa = Ball and Socket Joint

Muscles?
Iliopsoas, Sartorius,
Rectus Femoris,
Gluteus Maximus



Left Knee on Right Hand Layup


Movement
- Extension Flexion

Where?
Sagittal Plane about Transverse Axis

Joints?
Pivotal Hinge Joint

Muscles?
Quadriceps, Hamstrings





Right Knee of Right Hand Layup


Movements
- Extension Flexion

Where?
Sagittal Plane about Transverse Axis

Joints?
Pivotal Hinge Joint

Muscles?
Hamstrings, Quadriceps
Left Ankle in Right Hand Layup

Movement
- Extension Plantar Flexion

Where?
Sagittal Plane about Transverse Axis

Joints?
Talocrural = Condyloid Joint

Muscles?
Gastrocnemius, Soleus


Right ankle in Right Hand Layup

Movement
- Extension Flexion Dorsiflexion

Where?
Sagittal Plane about Transverse Axis

Joints?
Talocrural = Condyloid Joint

Muscles?
Anterior Tibialis




Toes

of Left foot in Right Hand Layup

Movement
-Extension Hyperextension

Where?
Sagittal Plane about Transverse Axis

Joints?
Metatarsophalangeal = Gliding Joint

Muscles?
Extensor digitorum longus

Identifying the Errors

3. By using both hands you can't flex the wrist and creates too much force exerted by the extension of the elbow which violates the
principle of direction of force and force applied.
Identifying the errors

2. Not driving the right knee upwards as she goes in for the shot .

By not driving the knee she isn't producing enough force to drive her body up towards the basket which is a violation of the
principle of summation of
joint forces
.

Body segments:
knee, hip and ankle
Joints:
hinge joint (knee), ball in socket (hip) and
condyloid (ankle)
Muscles:
quadriceps, gluteals, gastrocnemeius
and soleus
Force:
not applied upwards

Body Segments:
Wrist and elbow
Joints:
Condyloid (wrist) Hinge (elbow)
Muscles:
Flexor and Tricepbrachii
Force:
Too large in the wrong direction

1. Stop dribbling two steps away from the basket.
2. Having the ball in your hands.
3. Take two steps towards the basket starting with your right leg.
4. Plant your left leg and drive your right knee up to propel your body towards the basket.

Progression Exercises
5. While driving the knee forward use both hands to bring the ball up towards the basket.
6. Have the ball resting on the right hands finger tips and use the left hand to guide the ball
forward as both your elbows are flexed.
7.Once the ball is at head height release your left hand.
8. Left elbow extends down towards left hip.
9. Right elbow fully extends in direction of
basket.
10. Wrist flexes in order to follow through aiming for the middle of the square on the backboard.


Progression Exercises
Conveying Information to Performer
1. Observer asks the performer to explain the procedure and purpose of the skill.
2. Identify the positive aspects.
3. Identify areas of improvement that take place in the beginning of the skill.
4. Performer executes complete skill at normal speed.
5. Further identify correct and incorrect skills until performed without mistakes.
Step 1
1. Explain proper steps to performer on how to approach the basket and ask them to explain it back to you to ensure they understand.
2. Instruct player to perform the first two basic steps without a ball.
3. Incorporate the knee drive following the two steps.
4. Once mastered the performer can attempt the actions with a ball under the hoop without taking the shot.
Step 2
-Demonstrate what parts of the fingers should be contacting the ball for left and right hand. Have performer do it as you explain.
-Have performer practice bringing the ball up from the right hip to where they would release the ball.
-Once performer masters that, have them incorporate the flexion of the wrist at the end. Have them practice against a wall, aiming for an indicated mark on the wall.

Exercise 1&2


-Once athlete has completed both skills ask them to put them together in one movement, driving to the hoop without a ball.
-After this has been practiced, allow movement to be completed with a ball.


* Layup exercises now can be practiced in game like drills to further develop speed and accuracy of the performer.
Why these exercises benefit the athlete?
-Allows the performer to focus on key points by breaking down each movement into separate exercises.
-Focus on skills rather than making the basket.
-Building confidence and skill development by practicing game like drills.
-Correction of proper foot steps corrects symptoms such as taking off on the wrong leg and not driving the knee upwards. (principle of summation of forces)
-Using only one hand to take the shot corrects principle of direction of force and force applied
Biomechanical Purpose
Toes

of Right foot in Right Hand Layup

Movement
-Extension

Where?
Sagittal Plane about Transverse Axis

Joints?
Metatarsophalangeal = Gliding Joint

Muscles?
Extensor Hallucis Longus

Identifying The Errors
*This violates the rule of the game.
Hip
1. Preliminary Movement
2. Backswing/ Recovery Movement
3. Force Producing Movement
4. Critical Instant
5. Follow Through
1. Traveling by taking 3 steps towards the basket instead of 2 which results in taking off on the wrong foot.


Steps To Do A Proper Layup

Drills to strengthen muscles to perform the layup
The walking lunge:
lunges will help to build strong quadriceps which will aid in jumping closer to the basket.

Squats:
squats will build gluteal strength as well as strong quadriceps which will aid in getting speed as you approach the basket, allowing you to get closer to the net.

Calf raisers:
building strong calves will allow ankle to extend with greater power resulting in a higher jump.

Throwing a ball repeatedly at a small marked spot on a wall (i.e. a piece of tape slightly higher than the top of your head) standing approximately 3 feet from the wall will allow you to improve your aim and ball control.

-By taking off with the wrong foot she can't extend her right arm as much as if she took off with her left foot. Thus violating the
principle of summation of joint forces
.
It also causes her to be off balance because she is taking off and shooting with both the right arm and right leg. This violates the
principle of stability.
Body segments:
legs
Joints:
hips, knees and ankles
Muscles
: Quadriceps, gluteals, gastrocnemeius
and soleus
Force:
applied with the wrong leg
Happy Hump Day!
Full transcript