Week 8 - Body comp, PA and Bone

Question 1

Define physical active

Answer 1

Any bodily movement produced by skeletal muscle that results in energy expenditure above basal level.

Question 2

What does MVPA stand for?

Answer 2

Moderate to vigerous PA

Question 3

How is bone health assessed?

Answer 3

Bone density (DXA, QUS0
Z scores (number of standard deviations from the mean)
T scores (number of standard deviations from the mean using reference data e.g. sex and ethnicity)
Markers of bone remodelling (biochemical markers, Calciotrophic markers)
Callogen synthesis

Question 4

What is osteoperosis?

Answer 4

Systemic disease characeristed by decrease in bone mass, bone tissue deterioration and susceptibility to fracture

Question 5

What percent of bone mass in genetic and what percent can we change?

Answer 5

70% genetic

30% change

Question 6

What effect do osteoblasts and osteoclasts have?

Answer 6

Osteoblasts increase bone mass

Osteoclasts decrease bone mass

Question 7

What percent of vitamin D comes from the sun and where do we get the remainder?

Answer 7

90% from the sun

Rest from food