Chapter 9 Flashcards
5 Types of Tissue Loading producing stress and strain
- Compression
- Tension
- Shearing
- Bending
- Torsion
Acute Onset Muscle Soreness
Accompanies fatigue
Transient and occurs during and immediately after exercise
At what % of a load increase is a tendons breaking point?
6%-8%
Bone Structure: Articular Cartilage
at ends of long bones, covering joint surfaces of epiphysis
Provides protection during movement and cushions jars and blows
Bone Structure: Diaphysis
Main shaft of long bone
Hollow and cylindrical and covered in compact bone
Bone Structure: endosteum
lines medullar cavity
Bone Structure: epiphysis
located at ends of long bones
Composed primarily of cancellous bone, giving it sponge-like appearance
Bone Structure: medullary cavity
hollow tube in long bone diaphysis
Contains a yellow, fatty marrow in adults
Bone Structure: Periosteum
Covers long bones
Causes of DOMS
may occur from very small tears in the muscle tissue
May occur from disruption of the connective tissue that holds muscle tendon fibres together
Definition: Atrophy
wasting away of muscle tissue
Main causes are immobilization, inactivity and loss of nerve innervation
Definition: Blowout Fracture
occurs to the wall of the eye orbit as a result of a blow to the eye
Definition: Capsulitis
chronic inflammatory condition occurring after repeated joint sprains of micro traumas
Definition: closed fracture
little or no movement or displacement of the broken bones
Definition: Contracture
Abnormal shortening of muscle tissues, great deal of resistance to passive touch
Definition: Creep
deformation in the shape and/or properties of a tissue that occurs with the application of a constant load over time
Definition: Deformation
internal strain placed on the tissues from stress
Definition: Diastasis
Separation of two articulating bones
Definition: Elasticity
property allowing a tissue to return to normal following deformation
Definition: hyperesthesia
Increased sense of feeling such as pain or touch
Definition: hypoesthesia
diminished sense of feeling
Definition: Load
external force acting on tissues that causes internal reactions within the tissues
Definition: Mechanical Failure
Ability of the tissue to withstand stress and strain is exceeded
Definition: Muscle Strain
muscle overstretched by tension or forced to contract against too much resistance, separation or tearing of the muscle fibres occurs