correct answers
Define load Correct Answer-external force
Define stiffness Correct Answer-tissues ability to resist load
Define stress Correct Answer-Int. resistance of tissue to ext. load
Define strain Correct Answer-extent of deformation
Define elasticity Correct Answer-property of tissue "return" to normal
Define Yield point Correct Answer-past elasticity
Define Plastic Correct Answer-lasting change aka repetitively
Define Creep Correct Answer-Deformation
T / F Age has a factor with the elastic region to the plastic region ( older
people tend to go more into plastic region ) Correct Answer-TRUE
Define "Mechanical Failure" Correct Answer-Injury to tissue
,Difference between ductile and brittle Correct Answer-Ductile's
( muscle, tendons ) are able to withstand higher stress load than brittle
( bones )
What are the types of tissues loading? Correct Answer-1. unloaded
2. tension
3. compression
4. bending
5. shearing
6. torsion
7. combined loading
What kind of tissue loading is this - Sprinter who has a pulled hamstring
Correct Answer-Tension
What kind of tissue loading is this - feet planted while leg rotates to the
left ( opposite directions ) Correct Answer-Torsion
What is the diff between traumatic and overuse? Correct Answer-
Traumatic = instant injury aka as in now
Overuse = injury that happened due to the previous injuries that were
overused. Constant repetitiveness result in overuse injuries.
Diff between acute and chronic Correct Answer-Acute - instant
Chronic - over a long period of time
,What are the diff types of injuries and loadings Correct Answer-1.
muscle strain
2. muscle soreness
3. contusion
4. ligament sprain
5. stress facture
6. neuropraxia
What injuries/loadings are caused by overuse? Correct Answer-muscle
soreness and stress fractures
What are the Musculotendinous Unit-Injuries Correct Answer-1. strains
2. cramps
3. guarding
4. spasms
5. soreness
What is a grade 1 muscle strain Correct Answer-some muscle fibers
torn. some tenderness
What is a grade 2 muscle strain Correct Answer-more muscle fibers
torn. painful contraction
, What is a grade 3 muscle strain Correct Answer-complete rupture and
impairment
Define cramp Correct Answer-overload/fatigue, neuromuscular control,
not hydrated
Define guarding Correct Answer-splinting, response to pain after injury
Define spasms Correct Answer-Increased tension and shortening
Difference between cramps and spasms Correct Answer-Cramps is due
to lack of hydration, overload, and fatigue where as spasms is an
involuntary contraction and shortening of the muscles
Diff between clonic and tonic spasms Correct Answer-Clonic =
contracting and relaxing ( ex: involuntary muscle spasm )
Tonic = Lengthy contraction ( ex: seizures )
When does acute/onset muscle soreness happen? Correct Answer-
Immediately after or during exercise
When does DOMS happen? Correct Answer-12 hours ; 24-48 hours
Define crepitus Correct Answer-crackling sound or feeling; sticking
from inflammation b-yproducts