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general motion ppt.pptx

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general motion ppt.pptx

  1. 1. GENERAL MOTION AND THE HUMAN PERFORMER THE MULTI SEGMENTAL MODEL
  2. 2. Introduction
  3. 3.  The free movement of an object in relation to time is known as motion.  It can be described as the act of shifting one’s position.  For instance, a moving train, a rotating fan, a rolling ball, and so forth. Even though the planet is always in motion.  General motion is the most common type of motion in sport and physical exercise. Running Riding a bicycle and walking are among typical examples.
  4. 4. In this case the trunk moves in linear motion as a result of rotary motions of individual segments of extremities. Riding a bicycle is another example of general motion. Good knowledge of biomechanics allows you to evaluate a technique of motions in a sport you never personally did, as well as a new technique in a sport you have been doing for years.
  5. 5. Training methods based on the traditional approach always recommend which skills and techniques you should learn but biomechanics answers these questions, too, and many more. With the help of biomechanics it is possible to far better manage the teaching and training processes. Using the knowledge of biomechanics you can achieve better performance of your charges and teach new skills to your students on a higher level or, as the case may be, in a shorter time.
  6. 6. The motion of an object is categorized into four, on the basis of the nature of the movement of the object Rotatory Motion – It is a type of motion in which an object rotates around a central axis. Oscillatory Motion – In oscillatory motion, an object moves back and forth in the same motion. Consider the pendulum. Linear Motion – This is a one-dimensional motion that occurs in a straight line. for example, a train on a track.
  7. 7. Reciprocating motion – A continuous up-and- down or back-and-forth motion is referred to as a reciprocating motion. A gymnast, for example, swinging on a ring.
  8. 8. Linear motion
  9. 9. Linear motion Is movement in a straight line. Our body produces forces that cause angular motion of our joints that are then combined to cause linear motion of our bodies. This is known as general motion. An example of linear motion in sport is a ball moving in a straight line, or when an athlete, such as a downhill skier, holds a particular body position as they move in a straight line. Another example is a swimmer when the glide off the wall.
  10. 10. What is an example of linear motion?  An example of linear motion is an athlete running a 100-meter dash along a straight track. Linear motion is the most basic of all motion. An example of linear motion in sport is a ball moving in a straight line,  when an athlete, such as a downhill skier, holds a particular body position as they move in a straight line.  Another example is a swimmer when the glide off the wall.
  11. 11. Linear motion is one-dimensional motion along a straight line, and can therefore be described mathematically using only one spatial dimension. When an object tends to move along a straight line, it is said to be exhibiting linear motion.
  12. 12. EXAMPLES OF LINEAR MOTION  FIRING A BULLET
  13. 13.  SWIMMING IN A STRAIGHT LINE
  14. 14.  PARADE
  15. 15.  MOTION OF A CAR ON A STRAIGHT ROAD
  16. 16.  FREE FALL OF OBJECTS
  17. 17. There Are Two Types Of Linear Motion Rectilinear Motion And Curvilinear Motion.
  18. 18. I) Rectilinear Motion The motion of a body in a straight line is known as rectilinear motion. It is also known as translational motion. In rectilinear motion all particles of the body travel the same distance along parallel straight lines. For example, A man/car moving on the straight road, Ants moving in a straight line, A ball dropped from a height, a train running on the straight track will trace rectilinear path.
  19. 19. (ii) Curvilinear Motion If the motion of a body is along a curved path, it is said to be the curvilinear motion. In curvilinear motion the trajectories of individual particles of the body are curved, although the orientation of the body in space does not change
  20. 20.  Example: When completing a basketball shot the ball travels under a parabolic flight path, this is classed as a curvilinear motion known as projectile motion.  A car moving along a curved path, Motion of earth around the sun.
  21. 21. Examples of Curvilinear Motion Cycling Ball thrown upwards at an angle Javelin Throw Turning of a Car Javelin Throw Running on Curved Race Track
  22. 22. Difference between Linear Motion and Rectilinear Motion: Linear Motion Linear motion is defined as when a body is moving in a straight line or along a curved line in a plane Rectilinear Motion Rectilinear motion is defined as a phenomenon in which a body is moving only along a straight line.
  23. 23. ROTATIONAL MOTION  motion can be defined as the motion of an object around a circular path, in a fixed orbit.”  For example, when animals walk, their knee joint helps to undergo a rotatory motion in the lower limbs enabling the person or the animal to move. The joint here acts as an axis of rotation for the angular motion of the lower limb bones.
  24. 24. Examples of angular motion in biomechanics  Movement in the shoulder, elbow, and knee joints: In humans and animals every movement that occurs in our ball and socket joint present in the shoulder the elbow joint, and the knee joint covered by the knee cap involves the application of angular motion.  Movement in wrist joint: The angular motion taking place in the wrist joint in which the wrist acts as the angle of rotation enables us to carry out various activities like writing, picking up things, throwing objects, etc.
  25. 25.  Movement of wings: The wings enable birds to fly. Angular motion plays a very important role in the movement of wings.  Movement of tails: Certain animals such as monkeys, sloths, etc. use their tails to carry out several activities.
  26. 26. Rotary Motion Examples in Real Life Wheels of a Moving Vehicle. Helicopter Rotor Blades. Clock Ticking. Rotation of Earth.
  27. 27. Oscillation motion What is oscillatory motion? Oscillatory motion is defined as the to and fro motion of an object from its mean position. The ideal condition is that the object can be in oscillatory motion forever in the absence of friction but in the real world, this is not possible and the object has to settle into equilibrium. The pendulum of a clock or even sound waves are good example.
  28. 28.  It takes the same time for every such complete swing.  One complete swing is called oscillation.  Such a back and forth repetitive motion is called oscillatory motion. Give some examples of oscillatory motion  Oscillation of simple pendulum.  Vibrating strings of musical instruments is a mechanical example of oscillatory motion.  Movement of spring.  Heart beat  wings of birds movements
  29. 29. Types of Oscillatory Motion There are two types of oscillatory motions, namely, Linear Oscillatory Motion and Circular Oscillatory Motion.
  30. 30. In linear motion, the object moves left and right or up and down. Some examples of this type of linear motion are as below:  The vibration of strings of the musical instruments, Movement of the fluid in a U-tube column and In the circular motion, though the object moves left to right but in circular form, the motion of the pendulum in watch, Motion of swing
  31. 31. RECIPROCATING MOTION  What is the difference between reciprocating and oscillating motion? Even things that don't move back and forth can oscillate. Something that gets bigger and smaller can be said to oscillate. "Reciprocation" is most often used to refer to motion that is repetitive and involves some kind of back-and-forth changing of the position.
  32. 32. Examples of Reciprocating Motion Sewing Machine Needle
  33. 33.  Door Bell Ringer
  34. 34.  Shaper Machine

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