Training Adaptations- Bone Flashcards
What sports have the higher BMD g/cm2 A) Gymnastics B) Track C)Field hockey D)soccer E)runners F)swimmers G)A,B,C,D H) E,F
G) A,B,C,D
What sports have the LOWEST BMD g/cm2 A) Gymnastics B) Track C)Field hockey D)soccer E)runners F)swimmers G)A,B,C,D H) E,F
H) E,F
4 Factors that effect bone re-modeling
Weight bearing magnitude of load (Intensity) Rate (Speed) of load Force direction volume of load (Reps/sets) pull of tendons
Osteoblasts..
A)Form bone tissue
B) maintain bone tissue
C) destroy bone tissue
A)Form bone tissue
Osteocytes…
A)Form bone tissue
B) maintain bone tissue
C) destroy bone tissue
B)Maintain Bone tissue
Osteoclasts..
A)Form bone tissue
B) maintain bone tissue
C) destroy bone tissue
C) destroy bone tissue
The total skeleton is relapsed every.. A) 7 months B)20 years C)10years D)3 years
C)10years
Resorption of bones takes... A) 9-10wks B)2months C) 2-3 weeks D) 5wks
C)2-3wks
Formation of new bone can take up too.. A)3 wks B)1 year C)4 months D)7months
C)4 months
Turnover rate of bone is..... Per week (%) A) 7-11 B) 5-7 C)1-2 D)3-5
B)5-7% PER WEEK
Compact bones total cycle is.. A) 300days B) 100days C)50days D)75days
B)100days
Every year ....% of compact bone is replaced.. (%) A) 10% B)5% C)2% D)20%
B)5%
Spongy bones total cycle is.. A)1month B)200day C)500 days D)100 days
B) 200 days
Each year ....% of spongy bone is replaced (%) A) 75% B) 20% C)10% D)25%
D)25%
The endostem contains.. A) osteoblasts B) osetoprogenitor cells C) osteoclasts D) all of the above
D) all of the above
3 types of stresses that stimulates connective tissue adaptation
tension stress
compression stress
shear stress
What is Wolffs’s law..
bone grows/remodels in response to forces or demands placed upon it
what is strain?
magnitude of deformation in proportion to stress applied
Linear strain is compressive/ tensile dresses that change tissue length.. TRUE OR FALSE
TRUE
Shear stress is the bending of a bone (Angle of deformation) TRUE OR FASLE
TRUE
What is the minimal essential strain? (MES)
Threshold stimulus that initiates new bones formation
MES is approximately ..... of the force requires to fracture a bone.. A) 1/20 B)1/10 C)25% D)2%
B)1/10
Fluid in the bone flows vertically though the..
A) Volkmanns canals
B)Haversian Canal
B) Haversian canal
Fluid in the bone flows horizontally though the..
A) Volkmanns canals
B)Haversian Canal
A)Volkmanns canals
