Chapter 4 Flashcards
(32 cards)
Refers to how bones move in space. Examples: flexion/ extension
Osteokinematics
Subjective assessment of the quality of the feel when slight pressure is applied at the end of the joints passive ROM
End feel
Hard, abrupt limit to a passive joint motion. Occurs when bone contacts bone at the end of ROM
Bony end feel
Firm sensation that has slight give when the joint is taken to the end- range of motion. Tension in the surrounding ligaments, capsule and muscles. Most common end feel
Soft tissue stretch
Occurs when a muscle bulk is compressed, giving a soft end feel. Most evident on someone with muscles or very obese
Soft tissue approximation
Sudden hard stop usually felt well before the end of normal ROM, when bony structures block the joints motion
Abnormal bony end feel
Often found in acute conditions, where the soft tissue edema is present immediately after severe injury. Soft, “wet sponge” feel.
Boggy end feel
A reflexive muscle guarding during motion. A protective response.
Muscle spasm
Occurs when movement produces considerable pain. No mechanical limitation at the end of range.
Empty end feel
Rebound movement is felt at the end of ROM. Occurs with internal derangement of a joint, torn cartilage.
Springy block
Adjoining joint surfaces move on each other during osteokinematics joint movement. Referred to as joint surface motion
Arthrokinematic motion
Motions that accompany active motion but are not under voluntary control. Include the movement of rotation
Component movements
Movements that are passive movements between two surfaces done by passively applying external force. Also not under voluntary control. Include motions such as: glide, spin and roll
Joint play
Passive oscillatory motion or sustained stretch that is applied at a slow enough speed by an external force that an individual can stop the motion. Used to improve joint mobility or to decrease pain in a joint structure.
Joint mobilization
Passive movement applied within a short range and with very forceful thrust that cannot be stopped.
Manipulation
Two bones forming a convex-concave relationship. Most synovial joints are this.
Ovoid joint
Each joint surface is concave in one direction and convex in another.
Sellar/ saddle-shaped joint
Rolling of one joint surface on another
Roll
Linear movement of a joint surface parallel to the plane of the adjoining joint surface
Glide/ slide
Rotation of the movable joint surface on a fixed adjacent surface. The same point on each surface remains in contact with each other
Spin
Differences in shapes of bone ends require joint surfaces to move in a specific way during joint movement.
Concave-convex rule
The joint surface moves in the same direction as the body segments motion. Roll and slide are the same
Concave joint surface
Rounded inward
Concave
Rounded outward
Convex
