Range of motion
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The document discusses the importance of understanding range of motion (ROM) in the human skeletal system for effective design, highlighting various types of joints and their functionalities. It emphasizes how factors like age, gender, and environmental conditions impact movement and usability. Additionally, it suggests that design should be centered around the use and needs of users to optimize mobility and flexibility.
Range of motion
- 1. Range of motion Understanding its importance To design Ar. Surashmie Kaalmegh Associate Professor BID ,LAD College , Nagpur
- 5. The Human skeletal system: motor /movement
- 7. The skeleton / structure of the body :
- 10. The transverse plane The coronal plane The sagittal plane
- 11. What is range of motion? Euler angles & DOF (degrees of freedom )
- 12. Range of motion The range, measured in degrees of a circle, through which a joint can be extended and flexed An array of muscles, tendons and ligaments give the joint static and dynamic stability and permit it to execute powerful and precise movements
- 13. The study of body movements Where in : Physical conditions & special needs, Age related , Gender related, Racial related, Environmental conditions and Spatial differences All are vital for designing
- 14. A joint is the point where two or more bones meet. There are three main types of joints; Fibrous (immoveable), Cartilagenous (partially moveable) and Synovial (freely moveable
- 15. Ball & socket joints - These are the strongest, most movable joints, they allow for radial movement in almost any direction. Example : the shoulder and hip.
- 16. Pivot joints - These joints rotate around an axis by twisting. The radius and ulna are able to rotate around each other in the forearm.
- 17. Hinge joints - These joints allow for the extension and retraction of an extremity. Examples are the knee and elbow.
- 18. Saddle joints - These joints allow for back and forth or up and down movement but no rotation. The thumb is the only example.
- 19. Gliding joints - These joints allow bones slide past each other. Examples are the meta carpals and meta tarsals.
- 20. Ellipsoid joints - These joints are similar to ball & socket, but movement is less. The wrist is an ellipsoid joint.
- 22. Elbow joint
- 23. Activity needs motion & motion needs mobility , flexibility………
- 24. A Goniometer to measure an elbow range The Elbow joint :
- 25. Wrist bones : Grips & pulls
- 26. The Grip:
- 27. Fingers & wrist movement :
- 30. The Hand & Fingers : grip
- 31. The grip:
- 34. The grip
- 37. Knee & wrist :
- 38. The Knee movement: needs to be considered for design of footrests , Under chair or table Clearance Seat height & stretches
- 44. Shoulder joint LIFT, HOIST MOVE / SHIFT
- 46. Wheelchair bound people use shoulder joints the maximum An extraordinarily complex interplay of joints, tendons, muscles and ligaments gives the shoulder joint the greatest range of motion of all the joints in the human body .
- 53. Types of body postures studied & applied : Static Anthropometric Adequate but rarely effective to user Dynamic Usernomic Much more realistic & hence useful
- 55. Horizontal Reaches: Arms & reaches : in order to perform better
- 64. ROM & DOF ---- restrictions Type of Clothes Age Gender Disabilities / injury Climatic conditions Preoccupancy with something else …
- 65. Some movements where other body parts are used to operate an equipment ………..?????
- 66. Hence design should depend on mostly ……. The Use , User & Usability .
- 67. Photo and text credit to all the talented unnamed photographers and authors whose works have been used in this presentation